; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3
; RUN: opt -p loop-idiom-vectorize -loop-idiom-vectorize-verify -verify-dom-info -mtriple aarch64-unknown-linux-gnu -mattr=+sve -S < %s | FileCheck %s
; RUN: opt -passes='function(loop(loop-idiom-vectorize)),simplifycfg' -mtriple aarch64-unknown-linux-gnu -mattr=+sve -S < %s | FileCheck %s --check-prefix=LOOP-DEL
; RUN: opt -p loop-idiom-vectorize -mtriple aarch64-unknown-linux-gnu -S < %s | FileCheck %s --check-prefix=NO-TRANSFORM
define i32 @compare_bytes_simple(ptr %a, ptr %b, i32 %len, i32 %extra, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_simple(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[EXTRA:%.*]], i32 [[N:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1
; CHECK-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]]
; CHECK: mismatch_min_it_check:
; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64
; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]]
; CHECK-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0:![0-9]+]]
; CHECK: mismatch_mem_check:
; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]]
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]]
; CHECK-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64
; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]]
; CHECK-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]]
; CHECK-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64
; CHECK-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64
; CHECK-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12
; CHECK-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12
; CHECK-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12
; CHECK-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12
; CHECK-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]]
; CHECK-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]]
; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]]
; CHECK-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1:![0-9]+]]
; CHECK: mismatch_vec_loop_preheader:
; CHECK-NEXT: [[TMP19:%.*]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]])
; CHECK-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16
; CHECK-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]]
; CHECK: mismatch_vec_loop:
; CHECK-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ]
; CHECK-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ]
; CHECK-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]]
; CHECK-NEXT: [[TMP23:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; CHECK-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]]
; CHECK-NEXT: [[TMP25:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; CHECK-NEXT: [[TMP26:%.*]] = icmp ne <vscale x 16 x i8> [[TMP23]], [[TMP25]]
; CHECK-NEXT: [[TMP27:%.*]] = select <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i1> [[TMP26]], <vscale x 16 x i1> zeroinitializer
; CHECK-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1(<vscale x 16 x i1> [[TMP27]])
; CHECK-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]]
; CHECK: mismatch_vec_loop_inc:
; CHECK-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]]
; CHECK-NEXT: [[TMP30]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]])
; CHECK-NEXT: [[TMP31:%.*]] = extractelement <vscale x 16 x i1> [[TMP30]], i64 0
; CHECK-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[MISMATCH_END:%.*]]
; CHECK: mismatch_vec_loop_found:
; CHECK-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[TMP32:%.*]] = and <vscale x 16 x i1> [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]]
; CHECK-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1(<vscale x 16 x i1> [[TMP32]], i1 true)
; CHECK-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64
; CHECK-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]]
; CHECK-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32
; CHECK-NEXT: br label [[MISMATCH_END]]
; CHECK: mismatch_loop_pre:
; CHECK-NEXT: br label [[MISMATCH_LOOP:%.*]]
; CHECK: mismatch_loop:
; CHECK-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ]
; CHECK-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64
; CHECK-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]]
; CHECK-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
; CHECK-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]]
; CHECK-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1
; CHECK-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]]
; CHECK-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]]
; CHECK: mismatch_loop_inc:
; CHECK-NEXT: [[TMP43]] = add i32 [[MISMATCH_INDEX]], 1
; CHECK-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]]
; CHECK-NEXT: br i1 [[TMP44]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]]
; CHECK: mismatch_end:
; CHECK-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ]
; CHECK-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP45:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP46:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP45]], [[TMP46]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: byte.compare:
; CHECK-NEXT: br label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ]
; CHECK-NEXT: [[EXTRA_PHI:%.*]] = phi i32 [ [[EXTRA]], [[WHILE_BODY]] ], [ [[EXTRA]], [[WHILE_COND]] ], [ [[EXTRA]], [[BYTE_COMPARE]] ]
; CHECK-NEXT: [[RES:%.*]] = add i32 [[INC_LCSSA]], [[EXTRA_PHI]]
; CHECK-NEXT: ret i32 [[RES]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_simple(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[EXTRA:%.*]], i32 [[N:%.*]]) #[[ATTR0:[0-9]+]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1
; LOOP-DEL-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64
; LOOP-DEL-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; LOOP-DEL-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]]
; LOOP-DEL-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0:![0-9]+]]
; LOOP-DEL: mismatch_mem_check:
; LOOP-DEL-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]]
; LOOP-DEL-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]]
; LOOP-DEL-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64
; LOOP-DEL-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64
; LOOP-DEL-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]]
; LOOP-DEL-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]]
; LOOP-DEL-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64
; LOOP-DEL-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64
; LOOP-DEL-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12
; LOOP-DEL-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12
; LOOP-DEL-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12
; LOOP-DEL-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12
; LOOP-DEL-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]]
; LOOP-DEL-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]]
; LOOP-DEL-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]]
; LOOP-DEL-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1:![0-9]+]]
; LOOP-DEL: mismatch_vec_loop_preheader:
; LOOP-DEL-NEXT: [[TMP19:%.*]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]])
; LOOP-DEL-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64()
; LOOP-DEL-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16
; LOOP-DEL-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]]
; LOOP-DEL: mismatch_vec_loop:
; LOOP-DEL-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ]
; LOOP-DEL-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]]
; LOOP-DEL-NEXT: [[TMP23:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; LOOP-DEL-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]]
; LOOP-DEL-NEXT: [[TMP25:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; LOOP-DEL-NEXT: [[TMP26:%.*]] = icmp ne <vscale x 16 x i8> [[TMP23]], [[TMP25]]
; LOOP-DEL-NEXT: [[TMP27:%.*]] = select <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i1> [[TMP26]], <vscale x 16 x i1> zeroinitializer
; LOOP-DEL-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1(<vscale x 16 x i1> [[TMP27]])
; LOOP-DEL-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]]
; LOOP-DEL: mismatch_vec_loop_inc:
; LOOP-DEL-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]]
; LOOP-DEL-NEXT: [[TMP30]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]])
; LOOP-DEL-NEXT: [[TMP31:%.*]] = extractelement <vscale x 16 x i1> [[TMP30]], i64 0
; LOOP-DEL-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[WHILE_END:%.*]]
; LOOP-DEL: mismatch_vec_loop_found:
; LOOP-DEL-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[TMP32:%.*]] = and <vscale x 16 x i1> [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]]
; LOOP-DEL-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1(<vscale x 16 x i1> [[TMP32]], i1 true)
; LOOP-DEL-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64
; LOOP-DEL-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]]
; LOOP-DEL-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32
; LOOP-DEL-NEXT: br label [[WHILE_END]]
; LOOP-DEL: mismatch_loop_pre:
; LOOP-DEL-NEXT: br label [[MISMATCH_LOOP:%.*]]
; LOOP-DEL: mismatch_loop:
; LOOP-DEL-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ]
; LOOP-DEL-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64
; LOOP-DEL-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]]
; LOOP-DEL-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
; LOOP-DEL-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]]
; LOOP-DEL-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1
; LOOP-DEL-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]]
; LOOP-DEL-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[WHILE_END]]
; LOOP-DEL: mismatch_loop_inc:
; LOOP-DEL-NEXT: [[TMP43]] = add i32 [[MISMATCH_INDEX]], 1
; LOOP-DEL-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]]
; LOOP-DEL-NEXT: br i1 [[TMP44]], label [[WHILE_END]], label [[MISMATCH_LOOP]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ]
; LOOP-DEL-NEXT: [[RES:%.*]] = add i32 [[MISMATCH_RESULT]], [[EXTRA]]
; LOOP-DEL-NEXT: ret i32 [[RES]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_simple(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[EXTRA:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: [[EXTRA_PHI:%.*]] = phi i32 [ [[EXTRA]], [[WHILE_BODY]] ], [ [[EXTRA]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: [[RES:%.*]] = add i32 [[INC_LCSSA]], [[EXTRA_PHI]]
; NO-TRANSFORM-NEXT: ret i32 [[RES]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ]
%extra.phi = phi i32 [ %extra, %while.body ], [ %extra, %while.cond ]
%res = add i32 %inc.lcssa, %extra.phi
ret i32 %res
}
define i32 @compare_bytes_signed_wrap(ptr %a, ptr %b, i32 %len, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_signed_wrap(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1
; CHECK-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]]
; CHECK: mismatch_min_it_check:
; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64
; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]]
; CHECK-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]]
; CHECK: mismatch_mem_check:
; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]]
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]]
; CHECK-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64
; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]]
; CHECK-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]]
; CHECK-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64
; CHECK-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64
; CHECK-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12
; CHECK-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12
; CHECK-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12
; CHECK-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12
; CHECK-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]]
; CHECK-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]]
; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]]
; CHECK-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1]]
; CHECK: mismatch_vec_loop_preheader:
; CHECK-NEXT: [[TMP19:%.*]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]])
; CHECK-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16
; CHECK-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]]
; CHECK: mismatch_vec_loop:
; CHECK-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ]
; CHECK-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ]
; CHECK-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]]
; CHECK-NEXT: [[TMP23:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; CHECK-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]]
; CHECK-NEXT: [[TMP25:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; CHECK-NEXT: [[TMP26:%.*]] = icmp ne <vscale x 16 x i8> [[TMP23]], [[TMP25]]
; CHECK-NEXT: [[TMP27:%.*]] = select <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i1> [[TMP26]], <vscale x 16 x i1> zeroinitializer
; CHECK-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1(<vscale x 16 x i1> [[TMP27]])
; CHECK-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]]
; CHECK: mismatch_vec_loop_inc:
; CHECK-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]]
; CHECK-NEXT: [[TMP30]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]])
; CHECK-NEXT: [[TMP31:%.*]] = extractelement <vscale x 16 x i1> [[TMP30]], i64 0
; CHECK-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[MISMATCH_END:%.*]]
; CHECK: mismatch_vec_loop_found:
; CHECK-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[TMP32:%.*]] = and <vscale x 16 x i1> [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]]
; CHECK-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1(<vscale x 16 x i1> [[TMP32]], i1 true)
; CHECK-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64
; CHECK-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]]
; CHECK-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32
; CHECK-NEXT: br label [[MISMATCH_END]]
; CHECK: mismatch_loop_pre:
; CHECK-NEXT: br label [[MISMATCH_LOOP:%.*]]
; CHECK: mismatch_loop:
; CHECK-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ]
; CHECK-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64
; CHECK-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]]
; CHECK-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
; CHECK-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]]
; CHECK-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1
; CHECK-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]]
; CHECK-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]]
; CHECK: mismatch_loop_inc:
; CHECK-NEXT: [[TMP43]] = add nsw i32 [[MISMATCH_INDEX]], 1
; CHECK-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]]
; CHECK-NEXT: br i1 [[TMP44]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]]
; CHECK: mismatch_end:
; CHECK-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ]
; CHECK-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP45:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP46:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP45]], [[TMP46]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: byte.compare:
; CHECK-NEXT: br label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ]
; CHECK-NEXT: ret i32 [[INC_LCSSA]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_signed_wrap(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1
; LOOP-DEL-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64
; LOOP-DEL-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; LOOP-DEL-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]]
; LOOP-DEL-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]]
; LOOP-DEL: mismatch_mem_check:
; LOOP-DEL-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]]
; LOOP-DEL-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]]
; LOOP-DEL-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64
; LOOP-DEL-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64
; LOOP-DEL-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]]
; LOOP-DEL-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]]
; LOOP-DEL-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64
; LOOP-DEL-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64
; LOOP-DEL-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12
; LOOP-DEL-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12
; LOOP-DEL-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12
; LOOP-DEL-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12
; LOOP-DEL-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]]
; LOOP-DEL-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]]
; LOOP-DEL-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]]
; LOOP-DEL-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1]]
; LOOP-DEL: mismatch_vec_loop_preheader:
; LOOP-DEL-NEXT: [[TMP19:%.*]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]])
; LOOP-DEL-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64()
; LOOP-DEL-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16
; LOOP-DEL-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]]
; LOOP-DEL: mismatch_vec_loop:
; LOOP-DEL-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ]
; LOOP-DEL-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]]
; LOOP-DEL-NEXT: [[TMP23:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; LOOP-DEL-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]]
; LOOP-DEL-NEXT: [[TMP25:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; LOOP-DEL-NEXT: [[TMP26:%.*]] = icmp ne <vscale x 16 x i8> [[TMP23]], [[TMP25]]
; LOOP-DEL-NEXT: [[TMP27:%.*]] = select <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i1> [[TMP26]], <vscale x 16 x i1> zeroinitializer
; LOOP-DEL-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1(<vscale x 16 x i1> [[TMP27]])
; LOOP-DEL-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]]
; LOOP-DEL: mismatch_vec_loop_inc:
; LOOP-DEL-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]]
; LOOP-DEL-NEXT: [[TMP30]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]])
; LOOP-DEL-NEXT: [[TMP31:%.*]] = extractelement <vscale x 16 x i1> [[TMP30]], i64 0
; LOOP-DEL-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[WHILE_END:%.*]]
; LOOP-DEL: mismatch_vec_loop_found:
; LOOP-DEL-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[TMP32:%.*]] = and <vscale x 16 x i1> [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]]
; LOOP-DEL-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1(<vscale x 16 x i1> [[TMP32]], i1 true)
; LOOP-DEL-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64
; LOOP-DEL-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]]
; LOOP-DEL-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32
; LOOP-DEL-NEXT: br label [[WHILE_END]]
; LOOP-DEL: mismatch_loop_pre:
; LOOP-DEL-NEXT: br label [[MISMATCH_LOOP:%.*]]
; LOOP-DEL: mismatch_loop:
; LOOP-DEL-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ]
; LOOP-DEL-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64
; LOOP-DEL-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]]
; LOOP-DEL-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
; LOOP-DEL-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]]
; LOOP-DEL-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1
; LOOP-DEL-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]]
; LOOP-DEL-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[WHILE_END]]
; LOOP-DEL: mismatch_loop_inc:
; LOOP-DEL-NEXT: [[TMP43]] = add nsw i32 [[MISMATCH_INDEX]], 1
; LOOP-DEL-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]]
; LOOP-DEL-NEXT: br i1 [[TMP44]], label [[WHILE_END]], label [[MISMATCH_LOOP]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ]
; LOOP-DEL-NEXT: ret i32 [[MISMATCH_RESULT]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_signed_wrap(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add nsw i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: ret i32 [[INC_LCSSA]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add nsw i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ]
ret i32 %inc.lcssa
}
define i32 @compare_bytes_simple_end_ne_found(ptr %a, ptr %b, ptr %c, ptr %d, i32 %len, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_simple_end_ne_found(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1
; CHECK-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]]
; CHECK: mismatch_min_it_check:
; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64
; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]]
; CHECK-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]]
; CHECK: mismatch_mem_check:
; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]]
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]]
; CHECK-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64
; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]]
; CHECK-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]]
; CHECK-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64
; CHECK-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64
; CHECK-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12
; CHECK-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12
; CHECK-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12
; CHECK-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12
; CHECK-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]]
; CHECK-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]]
; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]]
; CHECK-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1]]
; CHECK: mismatch_vec_loop_preheader:
; CHECK-NEXT: [[TMP19:%.*]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]])
; CHECK-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16
; CHECK-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]]
; CHECK: mismatch_vec_loop:
; CHECK-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ]
; CHECK-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ]
; CHECK-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]]
; CHECK-NEXT: [[TMP23:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; CHECK-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]]
; CHECK-NEXT: [[TMP25:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; CHECK-NEXT: [[TMP26:%.*]] = icmp ne <vscale x 16 x i8> [[TMP23]], [[TMP25]]
; CHECK-NEXT: [[TMP27:%.*]] = select <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i1> [[TMP26]], <vscale x 16 x i1> zeroinitializer
; CHECK-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1(<vscale x 16 x i1> [[TMP27]])
; CHECK-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]]
; CHECK: mismatch_vec_loop_inc:
; CHECK-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]]
; CHECK-NEXT: [[TMP30]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]])
; CHECK-NEXT: [[TMP31:%.*]] = extractelement <vscale x 16 x i1> [[TMP30]], i64 0
; CHECK-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[MISMATCH_END:%.*]]
; CHECK: mismatch_vec_loop_found:
; CHECK-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[TMP32:%.*]] = and <vscale x 16 x i1> [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]]
; CHECK-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1(<vscale x 16 x i1> [[TMP32]], i1 true)
; CHECK-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64
; CHECK-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]]
; CHECK-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32
; CHECK-NEXT: br label [[MISMATCH_END]]
; CHECK: mismatch_loop_pre:
; CHECK-NEXT: br label [[MISMATCH_LOOP:%.*]]
; CHECK: mismatch_loop:
; CHECK-NEXT: [[MISMATCH_INDEX3:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ]
; CHECK-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX3]] to i64
; CHECK-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]]
; CHECK-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
; CHECK-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]]
; CHECK-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1
; CHECK-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]]
; CHECK-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]]
; CHECK: mismatch_loop_inc:
; CHECK-NEXT: [[TMP43]] = add i32 [[MISMATCH_INDEX3]], 1
; CHECK-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]]
; CHECK-NEXT: br i1 [[TMP44]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]]
; CHECK: mismatch_end:
; CHECK-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX3]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ]
; CHECK-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP45:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP46:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP45]], [[TMP46]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_FOUND:%.*]]
; CHECK: while.found:
; CHECK-NEXT: [[MISMATCH_INDEX1:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ]
; CHECK-NEXT: [[FOUND_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ], [ [[C]], [[BYTE_COMPARE]] ]
; CHECK-NEXT: br label [[END:%.*]]
; CHECK: byte.compare:
; CHECK-NEXT: [[TMP47:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]]
; CHECK-NEXT: br i1 [[TMP47]], label [[WHILE_END]], label [[WHILE_FOUND]]
; CHECK: while.end:
; CHECK-NEXT: [[MISMATCH_INDEX2:%.*]] = phi i32 [ [[N]], [[WHILE_COND]] ], [ [[N]], [[BYTE_COMPARE]] ]
; CHECK-NEXT: [[END_PTR:%.*]] = phi ptr [ [[D]], [[WHILE_COND]] ], [ [[D]], [[BYTE_COMPARE]] ]
; CHECK-NEXT: br label [[END]]
; CHECK: end:
; CHECK-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[MISMATCH_INDEX1]], [[WHILE_FOUND]] ], [ [[MISMATCH_INDEX2]], [[WHILE_END]] ]
; CHECK-NEXT: [[STORE_PTR:%.*]] = phi ptr [ [[END_PTR]], [[WHILE_END]] ], [ [[FOUND_PTR]], [[WHILE_FOUND]] ]
; CHECK-NEXT: store i32 [[MISMATCH_INDEX]], ptr [[STORE_PTR]], align 4
; CHECK-NEXT: ret i32 [[MISMATCH_INDEX]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_simple_end_ne_found(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1
; LOOP-DEL-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64
; LOOP-DEL-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; LOOP-DEL-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]]
; LOOP-DEL-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]]
; LOOP-DEL: mismatch_mem_check:
; LOOP-DEL-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]]
; LOOP-DEL-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]]
; LOOP-DEL-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64
; LOOP-DEL-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64
; LOOP-DEL-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]]
; LOOP-DEL-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]]
; LOOP-DEL-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64
; LOOP-DEL-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64
; LOOP-DEL-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12
; LOOP-DEL-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12
; LOOP-DEL-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12
; LOOP-DEL-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12
; LOOP-DEL-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]]
; LOOP-DEL-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]]
; LOOP-DEL-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]]
; LOOP-DEL-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1]]
; LOOP-DEL: mismatch_vec_loop_preheader:
; LOOP-DEL-NEXT: [[TMP19:%.*]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]])
; LOOP-DEL-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64()
; LOOP-DEL-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16
; LOOP-DEL-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]]
; LOOP-DEL: mismatch_vec_loop:
; LOOP-DEL-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ]
; LOOP-DEL-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]]
; LOOP-DEL-NEXT: [[TMP23:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; LOOP-DEL-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]]
; LOOP-DEL-NEXT: [[TMP25:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; LOOP-DEL-NEXT: [[TMP26:%.*]] = icmp ne <vscale x 16 x i8> [[TMP23]], [[TMP25]]
; LOOP-DEL-NEXT: [[TMP27:%.*]] = select <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i1> [[TMP26]], <vscale x 16 x i1> zeroinitializer
; LOOP-DEL-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1(<vscale x 16 x i1> [[TMP27]])
; LOOP-DEL-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]]
; LOOP-DEL: mismatch_vec_loop_inc:
; LOOP-DEL-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]]
; LOOP-DEL-NEXT: [[TMP30]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]])
; LOOP-DEL-NEXT: [[TMP31:%.*]] = extractelement <vscale x 16 x i1> [[TMP30]], i64 0
; LOOP-DEL-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[BYTE_COMPARE:%.*]]
; LOOP-DEL: mismatch_vec_loop_found:
; LOOP-DEL-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[TMP32:%.*]] = and <vscale x 16 x i1> [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]]
; LOOP-DEL-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1(<vscale x 16 x i1> [[TMP32]], i1 true)
; LOOP-DEL-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64
; LOOP-DEL-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]]
; LOOP-DEL-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32
; LOOP-DEL-NEXT: br label [[BYTE_COMPARE]]
; LOOP-DEL: mismatch_loop_pre:
; LOOP-DEL-NEXT: br label [[MISMATCH_LOOP:%.*]]
; LOOP-DEL: mismatch_loop:
; LOOP-DEL-NEXT: [[MISMATCH_INDEX3:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ]
; LOOP-DEL-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX3]] to i64
; LOOP-DEL-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]]
; LOOP-DEL-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
; LOOP-DEL-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]]
; LOOP-DEL-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1
; LOOP-DEL-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]]
; LOOP-DEL-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[BYTE_COMPARE]]
; LOOP-DEL: mismatch_loop_inc:
; LOOP-DEL-NEXT: [[TMP43]] = add i32 [[MISMATCH_INDEX3]], 1
; LOOP-DEL-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]]
; LOOP-DEL-NEXT: br i1 [[TMP44]], label [[BYTE_COMPARE]], label [[MISMATCH_LOOP]]
; LOOP-DEL: byte.compare:
; LOOP-DEL-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX3]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ]
; LOOP-DEL-NEXT: [[TMP45:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]]
; LOOP-DEL-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[TMP45]], i32 [[N]], i32 [[MISMATCH_RESULT]]
; LOOP-DEL-NEXT: [[SPEC_SELECT4:%.*]] = select i1 [[TMP45]], ptr [[D]], ptr [[C]]
; LOOP-DEL-NEXT: store i32 [[SPEC_SELECT]], ptr [[SPEC_SELECT4]], align 4
; LOOP-DEL-NEXT: ret i32 [[SPEC_SELECT]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_simple_end_ne_found(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_FOUND:%.*]]
; NO-TRANSFORM: while.found:
; NO-TRANSFORM-NEXT: [[MISMATCH_INDEX1:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ]
; NO-TRANSFORM-NEXT: [[FOUND_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ]
; NO-TRANSFORM-NEXT: br label [[END:%.*]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[MISMATCH_INDEX2:%.*]] = phi i32 [ [[N]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: [[END_PTR:%.*]] = phi ptr [ [[D]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: br label [[END]]
; NO-TRANSFORM: end:
; NO-TRANSFORM-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[MISMATCH_INDEX1]], [[WHILE_FOUND]] ], [ [[MISMATCH_INDEX2]], [[WHILE_END]] ]
; NO-TRANSFORM-NEXT: [[STORE_PTR:%.*]] = phi ptr [ [[END_PTR]], [[WHILE_END]] ], [ [[FOUND_PTR]], [[WHILE_FOUND]] ]
; NO-TRANSFORM-NEXT: store i32 [[MISMATCH_INDEX]], ptr [[STORE_PTR]], align 4
; NO-TRANSFORM-NEXT: ret i32 [[MISMATCH_INDEX]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.found
while.found:
%mismatch_index1 = phi i32 [ %inc, %while.body ]
%found_ptr = phi ptr [ %c, %while.body ]
br label %end
while.end:
%mismatch_index2 = phi i32 [ %n, %while.cond ]
%end_ptr = phi ptr [ %d, %while.cond ]
br label %end
end:
%mismatch_index = phi i32 [ %mismatch_index1, %while.found ], [ %mismatch_index2, %while.end ]
%store_ptr = phi ptr [ %end_ptr, %while.end ], [ %found_ptr, %while.found ]
store i32 %mismatch_index, ptr %store_ptr
ret i32 %mismatch_index
}
define i32 @compare_bytes_extra_cmp(ptr %a, ptr %b, i32 %len, i32 %n, i32 %x) {
; CHECK-LABEL: define i32 @compare_bytes_extra_cmp(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]], i32 [[X:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP_X:%.*]] = icmp ult i32 [[N]], [[X]]
; CHECK-NEXT: br i1 [[CMP_X]], label [[PH:%.*]], label [[WHILE_END:%.*]]
; CHECK: ph:
; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1
; CHECK-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]]
; CHECK: mismatch_min_it_check:
; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64
; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]]
; CHECK-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]]
; CHECK: mismatch_mem_check:
; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]]
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]]
; CHECK-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64
; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]]
; CHECK-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]]
; CHECK-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64
; CHECK-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64
; CHECK-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12
; CHECK-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12
; CHECK-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12
; CHECK-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12
; CHECK-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]]
; CHECK-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]]
; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]]
; CHECK-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1]]
; CHECK: mismatch_vec_loop_preheader:
; CHECK-NEXT: [[TMP19:%.*]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]])
; CHECK-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16
; CHECK-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]]
; CHECK: mismatch_vec_loop:
; CHECK-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ]
; CHECK-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ]
; CHECK-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]]
; CHECK-NEXT: [[TMP23:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; CHECK-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]]
; CHECK-NEXT: [[TMP25:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; CHECK-NEXT: [[TMP26:%.*]] = icmp ne <vscale x 16 x i8> [[TMP23]], [[TMP25]]
; CHECK-NEXT: [[TMP27:%.*]] = select <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i1> [[TMP26]], <vscale x 16 x i1> zeroinitializer
; CHECK-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1(<vscale x 16 x i1> [[TMP27]])
; CHECK-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]]
; CHECK: mismatch_vec_loop_inc:
; CHECK-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]]
; CHECK-NEXT: [[TMP30]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]])
; CHECK-NEXT: [[TMP31:%.*]] = extractelement <vscale x 16 x i1> [[TMP30]], i64 0
; CHECK-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[MISMATCH_END:%.*]]
; CHECK: mismatch_vec_loop_found:
; CHECK-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[TMP32:%.*]] = and <vscale x 16 x i1> [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]]
; CHECK-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1(<vscale x 16 x i1> [[TMP32]], i1 true)
; CHECK-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64
; CHECK-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]]
; CHECK-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32
; CHECK-NEXT: br label [[MISMATCH_END]]
; CHECK: mismatch_loop_pre:
; CHECK-NEXT: br label [[MISMATCH_LOOP:%.*]]
; CHECK: mismatch_loop:
; CHECK-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ]
; CHECK-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64
; CHECK-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]]
; CHECK-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
; CHECK-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]]
; CHECK-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1
; CHECK-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]]
; CHECK-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]]
; CHECK: mismatch_loop_inc:
; CHECK-NEXT: [[TMP43]] = add i32 [[MISMATCH_INDEX]], 1
; CHECK-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]]
; CHECK-NEXT: br i1 [[TMP44]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]]
; CHECK: mismatch_end:
; CHECK-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ]
; CHECK-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP45:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP46:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP45]], [[TMP46]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END_LOOPEXIT]]
; CHECK: byte.compare:
; CHECK-NEXT: br label [[WHILE_END_LOOPEXIT]]
; CHECK: while.end.loopexit:
; CHECK-NEXT: [[INC_LCSSA1:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ]
; CHECK-NEXT: br label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[X]], [[ENTRY:%.*]] ], [ [[INC_LCSSA1]], [[WHILE_END_LOOPEXIT]] ]
; CHECK-NEXT: ret i32 [[INC_LCSSA]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_extra_cmp(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]], i32 [[X:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: [[CMP_X:%.*]] = icmp ult i32 [[N]], [[X]]
; LOOP-DEL-NEXT: br i1 [[CMP_X]], label [[PH:%.*]], label [[WHILE_END:%.*]]
; LOOP-DEL: ph:
; LOOP-DEL-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1
; LOOP-DEL-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64
; LOOP-DEL-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; LOOP-DEL-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]]
; LOOP-DEL-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]]
; LOOP-DEL: mismatch_mem_check:
; LOOP-DEL-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]]
; LOOP-DEL-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]]
; LOOP-DEL-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64
; LOOP-DEL-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64
; LOOP-DEL-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]]
; LOOP-DEL-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]]
; LOOP-DEL-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64
; LOOP-DEL-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64
; LOOP-DEL-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12
; LOOP-DEL-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12
; LOOP-DEL-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12
; LOOP-DEL-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12
; LOOP-DEL-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]]
; LOOP-DEL-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]]
; LOOP-DEL-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]]
; LOOP-DEL-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1]]
; LOOP-DEL: mismatch_vec_loop_preheader:
; LOOP-DEL-NEXT: [[TMP19:%.*]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]])
; LOOP-DEL-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64()
; LOOP-DEL-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16
; LOOP-DEL-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]]
; LOOP-DEL: mismatch_vec_loop:
; LOOP-DEL-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ]
; LOOP-DEL-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]]
; LOOP-DEL-NEXT: [[TMP23:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; LOOP-DEL-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]]
; LOOP-DEL-NEXT: [[TMP25:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; LOOP-DEL-NEXT: [[TMP26:%.*]] = icmp ne <vscale x 16 x i8> [[TMP23]], [[TMP25]]
; LOOP-DEL-NEXT: [[TMP27:%.*]] = select <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i1> [[TMP26]], <vscale x 16 x i1> zeroinitializer
; LOOP-DEL-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1(<vscale x 16 x i1> [[TMP27]])
; LOOP-DEL-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]]
; LOOP-DEL: mismatch_vec_loop_inc:
; LOOP-DEL-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]]
; LOOP-DEL-NEXT: [[TMP30]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]])
; LOOP-DEL-NEXT: [[TMP31:%.*]] = extractelement <vscale x 16 x i1> [[TMP30]], i64 0
; LOOP-DEL-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[WHILE_END]]
; LOOP-DEL: mismatch_vec_loop_found:
; LOOP-DEL-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ]
; LOOP-DEL-NEXT: [[TMP32:%.*]] = and <vscale x 16 x i1> [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]]
; LOOP-DEL-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1(<vscale x 16 x i1> [[TMP32]], i1 true)
; LOOP-DEL-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64
; LOOP-DEL-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]]
; LOOP-DEL-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32
; LOOP-DEL-NEXT: br label [[WHILE_END]]
; LOOP-DEL: mismatch_loop_pre:
; LOOP-DEL-NEXT: br label [[MISMATCH_LOOP:%.*]]
; LOOP-DEL: mismatch_loop:
; LOOP-DEL-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ]
; LOOP-DEL-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64
; LOOP-DEL-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]]
; LOOP-DEL-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1
; LOOP-DEL-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]]
; LOOP-DEL-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1
; LOOP-DEL-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]]
; LOOP-DEL-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[WHILE_END]]
; LOOP-DEL: mismatch_loop_inc:
; LOOP-DEL-NEXT: [[TMP43]] = add i32 [[MISMATCH_INDEX]], 1
; LOOP-DEL-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]]
; LOOP-DEL-NEXT: br i1 [[TMP44]], label [[WHILE_END]], label [[MISMATCH_LOOP]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[X]], [[ENTRY:%.*]] ], [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ]
; LOOP-DEL-NEXT: ret i32 [[INC_LCSSA]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_extra_cmp(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]], i32 [[X:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: [[CMP_X:%.*]] = icmp ult i32 [[N]], [[X]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_X]], label [[PH:%.*]], label [[WHILE_END:%.*]]
; NO-TRANSFORM: ph:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[PH]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END_LOOPEXIT]]
; NO-TRANSFORM: while.end.loopexit:
; NO-TRANSFORM-NEXT: [[INC_LCSSA1:%.*]] = phi i32 [ [[INC]], [[WHILE_COND]] ], [ [[INC]], [[WHILE_BODY]] ]
; NO-TRANSFORM-NEXT: br label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[X]], [[ENTRY:%.*]] ], [ [[INC_LCSSA1]], [[WHILE_END_LOOPEXIT]] ]
; NO-TRANSFORM-NEXT: ret i32 [[INC_LCSSA]]
;
entry:
%cmp.x = icmp ult i32 %n, %x
br i1 %cmp.x, label %ph, label %while.end
ph:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %ph ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end.loopexit, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end.loopexit
while.end.loopexit:
%inc.lcssa1 = phi i32 [ %inc, %while.cond ], [ %inc, %while.body ]
br label %while.end
while.end:
%inc.lcssa = phi i32 [ %x, %entry ], [ %inc.lcssa1, %while.end.loopexit ]
ret i32 %inc.lcssa
}
define void @compare_bytes_cleanup_block(ptr %src1, ptr %src2) {
; CHECK-LABEL: define void @compare_bytes_cleanup_block(
; CHECK-SAME: ptr [[SRC1:%.*]], ptr [[SRC2:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]]
; CHECK: mismatch_min_it_check:
; CHECK-NEXT: br i1 false, label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]]
; CHECK: mismatch_mem_check:
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[SRC1]], i64 1
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[SRC2]], i64 1
; CHECK-NEXT: [[TMP2:%.*]] = ptrtoint ptr [[TMP1]] to i64
; CHECK-NEXT: [[TMP3:%.*]] = ptrtoint ptr [[TMP0]] to i64
; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[SRC1]], i64 0
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[SRC2]], i64 0
; CHECK-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP4]] to i64
; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP5]] to i64
; CHECK-NEXT: [[TMP8:%.*]] = lshr i64 [[TMP3]], 12
; CHECK-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP6]], 12
; CHECK-NEXT: [[TMP10:%.*]] = lshr i64 [[TMP2]], 12
; CHECK-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP7]], 12
; CHECK-NEXT: [[TMP12:%.*]] = icmp ne i64 [[TMP8]], [[TMP9]]
; CHECK-NEXT: [[TMP13:%.*]] = icmp ne i64 [[TMP10]], [[TMP11]]
; CHECK-NEXT: [[TMP14:%.*]] = or i1 [[TMP12]], [[TMP13]]
; CHECK-NEXT: br i1 [[TMP14]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1]]
; CHECK: mismatch_vec_loop_preheader:
; CHECK-NEXT: [[TMP15:%.*]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 1, i64 0)
; CHECK-NEXT: [[TMP16:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP17:%.*]] = mul nuw nsw i64 [[TMP16]], 16
; CHECK-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]]
; CHECK: mismatch_vec_loop:
; CHECK-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP15]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP26:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ]
; CHECK-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ 1, [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP25:%.*]], [[MISMATCH_VEC_LOOP_INC]] ]
; CHECK-NEXT: [[TMP18:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[MISMATCH_VEC_INDEX]]
; CHECK-NEXT: [[TMP19:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP18]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; CHECK-NEXT: [[TMP20:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[MISMATCH_VEC_INDEX]]
; CHECK-NEXT: [[TMP21:%.*]] = call <vscale x 16 x i8> @llvm.masked.load.nxv16i8.p0(ptr [[TMP20]], i32 1, <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i8> zeroinitializer)
; CHECK-NEXT: [[TMP22:%.*]] = icmp ne <vscale x 16 x i8> [[TMP19]], [[TMP21]]
; CHECK-NEXT: [[TMP23:%.*]] = select <vscale x 16 x i1> [[MISMATCH_VEC_LOOP_PRED]], <vscale x 16 x i1> [[TMP22]], <vscale x 16 x i1> zeroinitializer
; CHECK-NEXT: [[TMP24:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1(<vscale x 16 x i1> [[TMP23]])
; CHECK-NEXT: br i1 [[TMP24]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]]
; CHECK: mismatch_vec_loop_inc:
; CHECK-NEXT: [[TMP25]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP17]]
; CHECK-NEXT: [[TMP26]] = call <vscale x 16 x i1> @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP25]], i64 0)
; CHECK-NEXT: [[TMP27:%.*]] = extractelement <vscale x 16 x i1> [[TMP26]], i64 0
; CHECK-NEXT: br i1 [[TMP27]], label [[MISMATCH_VEC_LOOP]], label [[MISMATCH_END:%.*]]
; CHECK: mismatch_vec_loop_found:
; CHECK-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi <vscale x 16 x i1> [ [[TMP23]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi <vscale x 16 x i1> [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ]
; CHECK-NEXT: [[TMP28:%.*]] = and <vscale x 16 x i1> [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]]
; CHECK-NEXT: [[TMP29:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1(<vscale x 16 x i1> [[TMP28]], i1 true)
; CHECK-NEXT: [[TMP30:%.*]] = zext i32 [[TMP29]] to i64
; CHECK-NEXT: [[TMP31:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP30]]
; CHECK-NEXT: [[TMP32:%.*]] = trunc i64 [[TMP31]] to i32
; CHECK-NEXT: br label [[MISMATCH_END]]
; CHECK: mismatch_loop_pre:
; CHECK-NEXT: br label [[MISMATCH_LOOP:%.*]]
; CHECK: mismatch_loop:
; CHECK-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ 1, [[MISMATCH_LOOP_PRE]] ], [ [[TMP39:%.*]], [[MISMATCH_LOOP_INC:%.*]] ]
; CHECK-NEXT: [[TMP33:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64
; CHECK-NEXT: [[TMP34:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[TMP33]]
; CHECK-NEXT: [[TMP35:%.*]] = load i8, ptr [[TMP34]], align 1
; CHECK-NEXT: [[TMP36:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[TMP33]]
; CHECK-NEXT: [[TMP37:%.*]] = load i8, ptr [[TMP36]], align 1
; CHECK-NEXT: [[TMP38:%.*]] = icmp eq i8 [[TMP35]], [[TMP37]]
; CHECK-NEXT: br i1 [[TMP38]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]]
; CHECK: mismatch_loop_inc:
; CHECK-NEXT: [[TMP39]] = add i32 [[MISMATCH_INDEX]], 1
; CHECK-NEXT: [[TMP40:%.*]] = icmp eq i32 [[TMP39]], 0
; CHECK-NEXT: br i1 [[TMP40]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]]
; CHECK: mismatch_end:
; CHECK-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ 0, [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ 0, [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP32]], [[MISMATCH_VEC_LOOP_FOUND]] ]
; CHECK-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ], [ 0, [[MISMATCH_END]] ]
; CHECK-NEXT: [[INC:%.*]] = add i32 [[LEN]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], 0
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[CLEANUP_THREAD:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP41:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP42:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP41]], [[TMP42]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[IF_END:%.*]]
; CHECK: byte.compare:
; CHECK-NEXT: [[TMP43:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], 0
; CHECK-NEXT: br i1 [[TMP43]], label [[CLEANUP_THREAD]], label [[IF_END]]
; CHECK: cleanup.thread:
; CHECK-NEXT: ret void
; CHECK: if.end:
; CHECK-NEXT: [[RES:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ]
; CHECK-NEXT: ret void
;
; LOOP-DEL-LABEL: define void @compare_bytes_cleanup_block(
; LOOP-DEL-SAME: ptr [[SRC1:%.*]], ptr [[SRC2:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[MISMATCH_LOOP:%.*]]
; LOOP-DEL: mismatch_loop:
; LOOP-DEL-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ], [ [[TMP6:%.*]], [[MISMATCH_LOOP]] ]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64
; LOOP-DEL-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[TMP0]]
; LOOP-DEL-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP1]], align 1
; LOOP-DEL-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[TMP0]]
; LOOP-DEL-NEXT: [[TMP4:%.*]] = load i8, ptr [[TMP3]], align 1
; LOOP-DEL-NEXT: [[TMP5:%.*]] = icmp ne i8 [[TMP2]], [[TMP4]]
; LOOP-DEL-NEXT: [[TMP6]] = add i32 [[MISMATCH_INDEX]], 1
; LOOP-DEL-NEXT: [[TMP7:%.*]] = icmp eq i32 [[TMP6]], 0
; LOOP-DEL-NEXT: [[OR_COND:%.*]] = or i1 [[TMP5]], [[TMP7]]
; LOOP-DEL-NEXT: br i1 [[OR_COND]], label [[COMMON_RET:%.*]], label [[MISMATCH_LOOP]]
; LOOP-DEL: common.ret:
; LOOP-DEL-NEXT: ret void
;
; NO-TRANSFORM-LABEL: define void @compare_bytes_cleanup_block(
; NO-TRANSFORM-SAME: ptr [[SRC1:%.*]], ptr [[SRC2:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN:%.*]] = phi i32 [ [[INC:%.*]], [[WHILE_BODY:%.*]] ], [ 0, [[ENTRY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], 0
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[CLEANUP_THREAD:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[IF_END:%.*]]
; NO-TRANSFORM: cleanup.thread:
; NO-TRANSFORM-NEXT: ret void
; NO-TRANSFORM: if.end:
; NO-TRANSFORM-NEXT: [[RES:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ]
; NO-TRANSFORM-NEXT: ret void
;
entry:
br label %while.cond
while.cond:
%len = phi i32 [ %inc, %while.body ], [ 0, %entry ]
%inc = add i32 %len, 1
%cmp.not = icmp eq i32 %inc, 0
br i1 %cmp.not, label %cleanup.thread, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr i8, ptr %src1, i64 %idxprom
%0 = load i8, ptr %arrayidx, align 1
%arrayidx2 = getelementptr i8, ptr %src2, i64 %idxprom
%1 = load i8, ptr %arrayidx2, align 1
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %if.end
cleanup.thread:
ret void
if.end:
%res = phi i32 [ %inc, %while.body ]
ret void
}
;
; NEGATIVE TESTS
;
; Similar to @compare_bytes_simple, except in the while.end block we have an extra PHI
; with unique values for each incoming block from the loop.
define i32 @compare_bytes_simple2(ptr %a, ptr %b, ptr %c, ptr %d, i32 %len, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_simple2(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; CHECK-NEXT: [[FINAL_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ], [ [[D]], [[WHILE_COND]] ]
; CHECK-NEXT: store i32 [[INC_LCSSA]], ptr [[FINAL_PTR]], align 4
; CHECK-NEXT: ret i32 [[INC_LCSSA]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_simple2(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: [[FINAL_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ], [ [[D]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: store i32 [[INC_LCSSA]], ptr [[FINAL_PTR]], align 4
; LOOP-DEL-NEXT: ret i32 [[INC_LCSSA]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_simple2(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: [[FINAL_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ], [ [[D]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: store i32 [[INC_LCSSA]], ptr [[FINAL_PTR]], align 4
; NO-TRANSFORM-NEXT: ret i32 [[INC_LCSSA]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ]
%final_ptr = phi ptr [ %c, %while.body ], [ %d, %while.cond ]
store i32 %inc.lcssa, ptr %final_ptr
ret i32 %inc.lcssa
}
; Similar to @compare_bytes_simple, except in the while.end block we have an extra PHI
; with unique values for each incoming block from the loop.
define i32 @compare_bytes_simple3(ptr %a, ptr %b, ptr %c, i32 %d, i32 %len, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_simple3(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], i32 [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[FINAL_VAL:%.*]] = phi i32 [ [[D]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; CHECK-NEXT: store i32 [[FINAL_VAL]], ptr [[C]], align 4
; CHECK-NEXT: ret i32 [[FINAL_VAL]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_simple3(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], i32 [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[FINAL_VAL:%.*]] = phi i32 [ [[D]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: store i32 [[FINAL_VAL]], ptr [[C]], align 4
; LOOP-DEL-NEXT: ret i32 [[FINAL_VAL]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_simple3(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], i32 [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[FINAL_VAL:%.*]] = phi i32 [ [[D]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: store i32 [[FINAL_VAL]], ptr [[C]], align 4
; NO-TRANSFORM-NEXT: ret i32 [[FINAL_VAL]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%final_val = phi i32 [ %d, %while.body ], [ %inc, %while.cond ]
store i32 %final_val, ptr %c
ret i32 %final_val
}
define i32 @compare_bytes_sign_ext(ptr %a, ptr %b, i32 %len, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_sign_ext(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = sext i32 [[INC]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; CHECK-NEXT: ret i32 [[INC_LCSSA]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_sign_ext(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = sext i32 [[INC]] to i64
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: ret i32 [[INC_LCSSA]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_sign_ext(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = sext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: ret i32 [[INC_LCSSA]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = sext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ]
ret i32 %inc.lcssa
}
define i32 @compare_bytes_outside_uses(ptr %a, ptr %b, i32 %len, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_outside_uses(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i32 [[IV]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[LEN]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[RES:%.*]] = phi i1 [ [[CMP_NOT2]], [[WHILE_BODY]] ], [ [[CMP_NOT]], [[WHILE_COND]] ]
; CHECK-NEXT: [[EXT_RES:%.*]] = zext i1 [[RES]] to i32
; CHECK-NEXT: ret i32 [[EXT_RES]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_outside_uses(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i32 [[IV]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[LEN]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[RES:%.*]] = phi i1 [ [[CMP_NOT2]], [[WHILE_BODY]] ], [ [[CMP_NOT]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: [[EXT_RES:%.*]] = zext i1 [[RES]] to i32
; LOOP-DEL-NEXT: ret i32 [[EXT_RES]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_outside_uses(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[IV]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[LEN]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[RES:%.*]] = phi i1 [ [[CMP_NOT2]], [[WHILE_BODY]] ], [ [[CMP_NOT]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: [[EXT_RES:%.*]] = zext i1 [[RES]] to i32
; NO-TRANSFORM-NEXT: ret i32 [[EXT_RES]]
;
entry:
br label %while.cond
while.cond:
%iv = phi i32 [ 0, %entry ], [ %inc, %while.body ]
%inc = add i32 %iv, 1
%cmp.not = icmp eq i32 %inc, %len
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%res = phi i1 [ %cmp.not2, %while.body ], [ %cmp.not, %while.cond ]
%ext_res = zext i1 %res to i32
ret i32 %ext_res
}
define i64 @compare_bytes_i64_index(ptr %a, ptr %b, i64 %len, i64 %n) {
; CHECK-LABEL: define i64 @compare_bytes_i64_index(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[LEN:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i64 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i64 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[INC]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[INC]]
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i64 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; CHECK-NEXT: ret i64 [[INC_LCSSA]]
;
; LOOP-DEL-LABEL: define i64 @compare_bytes_i64_index(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[LEN:%.*]], i64 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i64 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i64 [[LEN_ADDR]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[INC]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[INC]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i64 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: ret i64 [[INC_LCSSA]]
;
; NO-TRANSFORM-LABEL: define i64 @compare_bytes_i64_index(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i64 [[LEN:%.*]], i64 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i64 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i64 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[INC]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[INC]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i64 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: ret i64 [[INC_LCSSA]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i64 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i64 %len.addr, 1
%cmp.not = icmp eq i64 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %inc
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %inc
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%inc.lcssa = phi i64 [ %inc, %while.body ], [ %inc, %while.cond ]
ret i64 %inc.lcssa
}
define i32 @compare_bytes_simple_wrong_icmp1(ptr %a, ptr %b, i32 %len, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_simple_wrong_icmp1(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp ne i32 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; CHECK-NEXT: ret i32 [[INC_LCSSA]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_simple_wrong_icmp1(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp ne i32 [[INC]], [[N]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: ret i32 [[INC_LCSSA]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_simple_wrong_icmp1(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp ne i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: ret i32 [[INC_LCSSA]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp ne i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ]
ret i32 %inc.lcssa
}
define i32 @compare_bytes_simple_wrong_icmp2(ptr %a, ptr %b, i32 %len, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_simple_wrong_icmp2(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_BODY]], label [[WHILE_END:%.*]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; CHECK-NEXT: ret i32 [[INC_LCSSA]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_simple_wrong_icmp2(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_BODY]], label [[WHILE_END:%.*]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: ret i32 [[INC_LCSSA]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_simple_wrong_icmp2(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_BODY]], label [[WHILE_END:%.*]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: ret i32 [[INC_LCSSA]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.body, label %while.end
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ]
ret i32 %inc.lcssa
}
define i32 @compare_bytes_simple_wrong_icmp3(ptr %a, ptr %b, i32 %len, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_simple_wrong_icmp3(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp ne i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; CHECK-NEXT: ret i32 [[INC_LCSSA]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_simple_wrong_icmp3(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp ne i8 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: ret i32 [[INC_LCSSA]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_simple_wrong_icmp3(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp ne i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: ret i32 [[INC_LCSSA]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp ne i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ]
ret i32 %inc.lcssa
}
define i32 @compare_bytes_simple_wrong_icmp4(ptr %a, ptr %b, i32 %len, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_simple_wrong_icmp4(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_END]], label [[WHILE_COND]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; CHECK-NEXT: ret i32 [[INC_LCSSA]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_simple_wrong_icmp4(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_END]], label [[WHILE_COND]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: ret i32 [[INC_LCSSA]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_simple_wrong_icmp4(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_END]], label [[WHILE_COND]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: ret i32 [[INC_LCSSA]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.end, label %while.cond
while.end:
%inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ]
ret i32 %inc.lcssa
}
define i32 @compare_bytes_bad_load_type(ptr %a, ptr %b, i32 %len, i32 %n) {
; CHECK-LABEL: define i32 @compare_bytes_bad_load_type(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i16, ptr [[ARRAYIDX]], align 2
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP1:%.*]] = load i16, ptr [[ARRAYIDX2]], align 2
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i16 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; CHECK-NEXT: ret i32 [[INC_LCSSA]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_bad_load_type(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i16, ptr [[ARRAYIDX]], align 2
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i16, ptr [[ARRAYIDX2]], align 2
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i16 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: ret i32 [[INC_LCSSA]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_bad_load_type(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i16, ptr [[ARRAYIDX]], align 2
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i16, ptr [[ARRAYIDX2]], align 2
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i16 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: ret i32 [[INC_LCSSA]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i16, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i16, ptr %arrayidx2
%cmp.not2 = icmp eq i16 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ]
ret i32 %inc.lcssa
}
define i32 @compare_bytes_simple_optsize(ptr %a, ptr %b, i32 %len, i32 %extra, i32 %n) optsize {
; CHECK-LABEL: define i32 @compare_bytes_simple_optsize(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[EXTRA:%.*]], i32 [[N:%.*]]) #[[ATTR1:[0-9]+]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; CHECK-NEXT: [[EXTRA_PHI:%.*]] = phi i32 [ [[EXTRA]], [[WHILE_BODY]] ], [ [[EXTRA]], [[WHILE_COND]] ]
; CHECK-NEXT: [[RES:%.*]] = add i32 [[INC_LCSSA]], [[EXTRA_PHI]]
; CHECK-NEXT: ret i32 [[RES]]
;
; LOOP-DEL-LABEL: define i32 @compare_bytes_simple_optsize(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[EXTRA:%.*]], i32 [[N:%.*]]) #[[ATTR1:[0-9]+]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: [[EXTRA_PHI:%.*]] = phi i32 [ [[EXTRA]], [[WHILE_BODY]] ], [ [[EXTRA]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: [[RES:%.*]] = add i32 [[INC_LCSSA]], [[EXTRA_PHI]]
; LOOP-DEL-NEXT: ret i32 [[RES]]
;
; NO-TRANSFORM-LABEL: define i32 @compare_bytes_simple_optsize(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[EXTRA:%.*]], i32 [[N:%.*]]) #[[ATTR0:[0-9]+]] {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: [[EXTRA_PHI:%.*]] = phi i32 [ [[EXTRA]], [[WHILE_BODY]] ], [ [[EXTRA]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: [[RES:%.*]] = add i32 [[INC_LCSSA]], [[EXTRA_PHI]]
; NO-TRANSFORM-NEXT: ret i32 [[RES]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ]
%extra.phi = phi i32 [ %extra, %while.body ], [ %extra, %while.cond ]
%res = add i32 %inc.lcssa, %extra.phi
ret i32 %res
}
; The optimization should be disabled when noimplicitfloat is present.
define i32 @no_implicit_float(ptr %a, ptr %b, i32 %len, i32 %extra, i32 %n) noimplicitfloat {
; CHECK-LABEL: define i32 @no_implicit_float(
; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[EXTRA:%.*]], i32 [[N:%.*]]) #[[ATTR2:[0-9]+]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[WHILE_COND:%.*]]
; CHECK: while.cond:
; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; CHECK: while.body:
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; CHECK: while.end:
; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; CHECK-NEXT: [[EXTRA_PHI:%.*]] = phi i32 [ [[EXTRA]], [[WHILE_BODY]] ], [ [[EXTRA]], [[WHILE_COND]] ]
; CHECK-NEXT: [[RES:%.*]] = add i32 [[INC_LCSSA]], [[EXTRA_PHI]]
; CHECK-NEXT: ret i32 [[RES]]
;
; LOOP-DEL-LABEL: define i32 @no_implicit_float(
; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[EXTRA:%.*]], i32 [[N:%.*]]) #[[ATTR2:[0-9]+]] {
; LOOP-DEL-NEXT: entry:
; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]]
; LOOP-DEL: while.cond:
; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; LOOP-DEL: while.body:
; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; LOOP-DEL: while.end:
; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: [[EXTRA_PHI:%.*]] = phi i32 [ [[EXTRA]], [[WHILE_BODY]] ], [ [[EXTRA]], [[WHILE_COND]] ]
; LOOP-DEL-NEXT: [[RES:%.*]] = add i32 [[INC_LCSSA]], [[EXTRA_PHI]]
; LOOP-DEL-NEXT: ret i32 [[RES]]
;
; NO-TRANSFORM-LABEL: define i32 @no_implicit_float(
; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[EXTRA:%.*]], i32 [[N:%.*]]) #[[ATTR1:[0-9]+]] {
; NO-TRANSFORM-NEXT: entry:
; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]]
; NO-TRANSFORM: while.cond:
; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ]
; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1
; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]]
; NO-TRANSFORM: while.body:
; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64
; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1
; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]]
; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1
; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]]
; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]]
; NO-TRANSFORM: while.end:
; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: [[EXTRA_PHI:%.*]] = phi i32 [ [[EXTRA]], [[WHILE_BODY]] ], [ [[EXTRA]], [[WHILE_COND]] ]
; NO-TRANSFORM-NEXT: [[RES:%.*]] = add i32 [[INC_LCSSA]], [[EXTRA_PHI]]
; NO-TRANSFORM-NEXT: ret i32 [[RES]]
;
entry:
br label %while.cond
while.cond:
%len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ]
%inc = add i32 %len.addr, 1
%cmp.not = icmp eq i32 %inc, %n
br i1 %cmp.not, label %while.end, label %while.body
while.body:
%idxprom = zext i32 %inc to i64
%arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom
%0 = load i8, ptr %arrayidx
%arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom
%1 = load i8, ptr %arrayidx2
%cmp.not2 = icmp eq i8 %0, %1
br i1 %cmp.not2, label %while.cond, label %while.end
while.end:
%inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ]
%extra.phi = phi i32 [ %extra, %while.body ], [ %extra, %while.cond ]
%res = add i32 %inc.lcssa, %extra.phi
ret i32 %res
}
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