; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes='default<O3>' -S %s | FileCheck %s
target triple = "arm64-apple-darwin"
; Make sure we can vectorize a loop that uses a function to clamp a double to
; be between a given minimum and maximum value.
define internal double @clamp(double %v) {
entry:
%retval = alloca double, align 8
%v.addr = alloca double, align 8
store double %v, ptr %v.addr, align 8
%0 = load double, ptr %v.addr, align 8
%cmp = fcmp olt double %0, 0.000000e+00
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
store double 0.000000e+00, ptr %retval, align 8
br label %return
if.end: ; preds = %entry
%1 = load double, ptr %v.addr, align 8
%cmp1 = fcmp ogt double %1, 6.000000e+00
br i1 %cmp1, label %if.then2, label %if.end3
if.then2: ; preds = %if.end
store double 6.000000e+00, ptr %retval, align 8
br label %return
if.end3: ; preds = %if.end
%2 = load double, ptr %v.addr, align 8
store double %2, ptr %retval, align 8
br label %return
return: ; preds = %if.end3, %if.then2, %if.then
%3 = load double, ptr %retval, align 8
ret double %3
}
define void @loop(ptr %X, ptr %Y) {
; CHECK-LABEL: @loop(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[X6:%.*]] = ptrtoint ptr [[X:%.*]] to i64
; CHECK-NEXT: [[Y7:%.*]] = ptrtoint ptr [[Y:%.*]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = sub i64 [[X6]], [[Y7]]
; CHECK-NEXT: [[DIFF_CHECK:%.*]] = icmp ult i64 [[TMP0]], 32
; CHECK-NEXT: br i1 [[DIFF_CHECK]], label [[FOR_BODY:%.*]], label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds double, ptr [[Y]], i64 [[INDEX]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[TMP1]], i64 16
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <2 x double>, ptr [[TMP1]], align 8
; CHECK-NEXT: [[WIDE_LOAD8:%.*]] = load <2 x double>, ptr [[TMP2]], align 8
; CHECK-NEXT: [[TMP3:%.*]] = fcmp olt <2 x double> [[WIDE_LOAD]], zeroinitializer
; CHECK-NEXT: [[TMP4:%.*]] = fcmp olt <2 x double> [[WIDE_LOAD8]], zeroinitializer
; CHECK-NEXT: [[TMP5:%.*]] = fcmp ogt <2 x double> [[WIDE_LOAD]], <double 6.000000e+00, double 6.000000e+00>
; CHECK-NEXT: [[TMP6:%.*]] = fcmp ogt <2 x double> [[WIDE_LOAD8]], <double 6.000000e+00, double 6.000000e+00>
; CHECK-NEXT: [[TMP7:%.*]] = select <2 x i1> [[TMP5]], <2 x double> <double 6.000000e+00, double 6.000000e+00>, <2 x double> [[WIDE_LOAD]]
; CHECK-NEXT: [[TMP8:%.*]] = select <2 x i1> [[TMP6]], <2 x double> <double 6.000000e+00, double 6.000000e+00>, <2 x double> [[WIDE_LOAD8]]
; CHECK-NEXT: [[TMP9:%.*]] = select <2 x i1> [[TMP3]], <2 x double> zeroinitializer, <2 x double> [[TMP7]]
; CHECK-NEXT: [[TMP10:%.*]] = select <2 x i1> [[TMP4]], <2 x double> zeroinitializer, <2 x double> [[TMP8]]
; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds double, ptr [[X]], i64 [[INDEX]]
; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP11]], i64 16
; CHECK-NEXT: store <2 x double> [[TMP9]], ptr [[TMP11]], align 8
; CHECK-NEXT: store <2 x double> [[TMP10]], ptr [[TMP12]], align 8
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], 20000
; CHECK-NEXT: br i1 [[TMP13]], label [[FOR_COND_CLEANUP:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK: for.cond.cleanup:
; CHECK-NEXT: ret void
; CHECK: for.body:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ], [ 0, [[ENTRY]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, ptr [[Y]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[TMP14:%.*]] = load double, ptr [[ARRAYIDX]], align 8
; CHECK-NEXT: [[CMP_I:%.*]] = fcmp olt double [[TMP14]], 0.000000e+00
; CHECK-NEXT: [[CMP1_I:%.*]] = fcmp ogt double [[TMP14]], 6.000000e+00
; CHECK-NEXT: [[DOTV_I:%.*]] = select i1 [[CMP1_I]], double 6.000000e+00, double [[TMP14]]
; CHECK-NEXT: [[RETVAL_0_I:%.*]] = select i1 [[CMP_I]], double 0.000000e+00, double [[DOTV_I]]
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds double, ptr [[X]], i64 [[INDVARS_IV]]
; CHECK-NEXT: store double [[RETVAL_0_I]], ptr [[ARRAYIDX2]], align 8
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 20000
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
;
entry:
%X.addr = alloca ptr, align 8
%Y.addr = alloca ptr, align 8
%i = alloca i32, align 4
store ptr %X, ptr %X.addr, align 8
store ptr %Y, ptr %Y.addr, align 8
call void @llvm.lifetime.start.p0(i64 4, ptr %i) #2
store i32 0, ptr %i, align 4
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%0 = load i32, ptr %i, align 4
%cmp = icmp ult i32 %0, 20000
br i1 %cmp, label %for.body, label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.cond
call void @llvm.lifetime.end.p0(i64 4, ptr %i) #2
br label %for.end
for.body: ; preds = %for.cond
%1 = load ptr, ptr %Y.addr, align 8
%2 = load i32, ptr %i, align 4
%idxprom = zext i32 %2 to i64
%arrayidx = getelementptr inbounds double, ptr %1, i64 %idxprom
%3 = load double, ptr %arrayidx, align 8
%call = call double @clamp(double %3)
%4 = load ptr, ptr %X.addr, align 8
%5 = load i32, ptr %i, align 4
%idxprom1 = zext i32 %5 to i64
%arrayidx2 = getelementptr inbounds double, ptr %4, i64 %idxprom1
store double %call, ptr %arrayidx2, align 8
br label %for.inc
for.inc: ; preds = %for.body
%6 = load i32, ptr %i, align 4
%inc = add i32 %6, 1
store i32 %inc, ptr %i, align 4
br label %for.cond
for.end: ; preds = %for.cond.cleanup
ret void
}
; Test that requires sinking/hoisting of instructions for vectorization.
define void @loop2(ptr %A, ptr %B, ptr %C, float %x) {
; CHECK-LABEL: @loop2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[B:%.*]], i64 40000
; CHECK-NEXT: [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[C:%.*]], i64 40000
; CHECK-NEXT: [[SCEVGEP3:%.*]] = getelementptr i8, ptr [[A:%.*]], i64 40000
; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[B]], [[SCEVGEP2]]
; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[C]], [[SCEVGEP]]
; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
; CHECK-NEXT: [[BOUND04:%.*]] = icmp ult ptr [[B]], [[SCEVGEP3]]
; CHECK-NEXT: [[BOUND15:%.*]] = icmp ult ptr [[A]], [[SCEVGEP]]
; CHECK-NEXT: [[FOUND_CONFLICT6:%.*]] = and i1 [[BOUND04]], [[BOUND15]]
; CHECK-NEXT: [[CONFLICT_RDX:%.*]] = or i1 [[FOUND_CONFLICT]], [[FOUND_CONFLICT6]]
; CHECK-NEXT: br i1 [[CONFLICT_RDX]], label [[LOOP_BODY:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x float> poison, float [[X:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT]], <4 x float> poison, <4 x i32> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[INDEX]]
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i8, ptr [[TMP0]], i64 16
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP0]], align 4, !alias.scope [[META4:![0-9]+]]
; CHECK-NEXT: [[WIDE_LOAD7:%.*]] = load <4 x i32>, ptr [[TMP1]], align 4, !alias.scope [[META4]]
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq <4 x i32> [[WIDE_LOAD]], <i32 20, i32 20, i32 20, i32 20>
; CHECK-NEXT: [[TMP3:%.*]] = icmp eq <4 x i32> [[WIDE_LOAD7]], <i32 20, i32 20, i32 20, i32 20>
; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDEX]]
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[TMP4]], i64 16
; CHECK-NEXT: [[WIDE_LOAD8:%.*]] = load <4 x float>, ptr [[TMP4]], align 4, !alias.scope [[META7:![0-9]+]]
; CHECK-NEXT: [[WIDE_LOAD9:%.*]] = load <4 x float>, ptr [[TMP5]], align 4, !alias.scope [[META7]]
; CHECK-NEXT: [[TMP6:%.*]] = fmul <4 x float> [[BROADCAST_SPLAT]], [[WIDE_LOAD8]]
; CHECK-NEXT: [[TMP7:%.*]] = fmul <4 x float> [[BROADCAST_SPLAT]], [[WIDE_LOAD9]]
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr float, ptr [[B]], i64 [[INDEX]]
; CHECK-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[TMP8]], i64 16
; CHECK-NEXT: [[WIDE_LOAD10:%.*]] = load <4 x float>, ptr [[TMP8]], align 4, !alias.scope [[META9:![0-9]+]], !noalias [[META11:![0-9]+]]
; CHECK-NEXT: [[WIDE_LOAD11:%.*]] = load <4 x float>, ptr [[TMP9]], align 4, !alias.scope [[META9]], !noalias [[META11]]
; CHECK-NEXT: [[TMP10:%.*]] = fadd <4 x float> [[TMP6]], [[WIDE_LOAD10]]
; CHECK-NEXT: [[TMP11:%.*]] = fadd <4 x float> [[TMP7]], [[WIDE_LOAD11]]
; CHECK-NEXT: [[PREDPHI:%.*]] = select <4 x i1> [[TMP2]], <4 x float> [[TMP6]], <4 x float> [[TMP10]]
; CHECK-NEXT: [[PREDPHI12:%.*]] = select <4 x i1> [[TMP3]], <4 x float> [[TMP7]], <4 x float> [[TMP11]]
; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[TMP8]], i64 16
; CHECK-NEXT: store <4 x float> [[PREDPHI]], ptr [[TMP8]], align 4, !alias.scope [[META9]], !noalias [[META11]]
; CHECK-NEXT: store <4 x float> [[PREDPHI12]], ptr [[TMP12]], align 4, !alias.scope [[META9]], !noalias [[META11]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], 10000
; CHECK-NEXT: br i1 [[TMP13]], label [[EXIT:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
; CHECK: loop.body:
; CHECK-NEXT: [[IV1:%.*]] = phi i64 [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[C_GEP:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[IV1]]
; CHECK-NEXT: [[C_LV:%.*]] = load i32, ptr [[C_GEP]], align 4
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[C_LV]], 20
; CHECK-NEXT: [[A_GEP_0:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV1]]
; CHECK-NEXT: [[A_LV_0:%.*]] = load float, ptr [[A_GEP_0]], align 4
; CHECK-NEXT: [[MUL2_I81_I:%.*]] = fmul float [[X]], [[A_LV_0]]
; CHECK-NEXT: [[B_GEP_0:%.*]] = getelementptr inbounds float, ptr [[B]], i64 [[IV1]]
; CHECK-NEXT: br i1 [[CMP]], label [[LOOP_LATCH]], label [[ELSE:%.*]]
; CHECK: else:
; CHECK-NEXT: [[B_LV:%.*]] = load float, ptr [[B_GEP_0]], align 4
; CHECK-NEXT: [[ADD:%.*]] = fadd float [[MUL2_I81_I]], [[B_LV]]
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: loop.latch:
; CHECK-NEXT: [[ADD_SINK:%.*]] = phi float [ [[ADD]], [[ELSE]] ], [ [[MUL2_I81_I]], [[LOOP_BODY]] ]
; CHECK-NEXT: store float [[ADD_SINK]], ptr [[B_GEP_0]], align 4
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV1]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 10000
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[LOOP_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
br label %loop.header
loop.header:
%iv = phi i64 [ %iv.next, %loop.latch ], [ 0, %entry ]
%cmp.0 = icmp ult i64 %iv, 10000
br i1 %cmp.0, label %loop.body, label %exit
loop.body:
%C.gep = getelementptr inbounds i32, ptr %C, i64 %iv
%C.lv = load i32, ptr %C.gep
%cmp = icmp eq i32 %C.lv, 20
br i1 %cmp, label %then, label %else
then:
%A.gep.0 = getelementptr inbounds float, ptr %A, i64 %iv
%A.lv.0 = load float, ptr %A.gep.0, align 4
%mul2.i81.i = fmul float %A.lv.0, %x
%B.gep.0 = getelementptr inbounds float, ptr %B, i64 %iv
store float %mul2.i81.i, ptr %B.gep.0, align 4
br label %loop.latch
else:
%A.gep.1 = getelementptr inbounds float, ptr %A, i64 %iv
%A.lv.1 = load float, ptr %A.gep.1, align 4
%mul2 = fmul float %A.lv.1, %x
%B.gep.1 = getelementptr inbounds float, ptr %B, i64 %iv
%B.lv = load float, ptr %B.gep.1, align 4
%add = fadd float %mul2, %B.lv
store float %add, ptr %B.gep.1, align 4
br label %loop.latch
loop.latch:
%iv.next = add nuw nsw i64 %iv, 1
br label %loop.header
exit:
ret void
}
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
Codebase Browser
llvm