; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=loop-vectorize \
; RUN: -force-tail-folding-style=data-with-evl \
; RUN: -prefer-predicate-over-epilogue=predicate-dont-vectorize \
; RUN: -mtriple=riscv64 -mattr=+v -S < %s | FileCheck %s --check-prefix=IF-EVL
; RUN: opt -passes=loop-vectorize \
; RUN: -force-tail-folding-style=none \
; RUN: -prefer-predicate-over-epilogue=predicate-dont-vectorize \
; RUN: -mtriple=riscv64 -mattr=+v -S < %s | FileCheck %s --check-prefix=NO-VP
; Dependence distance between read and write is greater than the trip
; count of the loop. Thus, values written are never read for any
; valid vectorization of the loop.
define void @test(ptr %p) {
; IF-EVL-LABEL: @test(
; IF-EVL-NEXT: entry:
; IF-EVL-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; IF-EVL: vector.ph:
; IF-EVL-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 2
; IF-EVL-NEXT: [[TMP2:%.*]] = sub i64 [[TMP1]], 1
; IF-EVL-NEXT: [[N_RND_UP:%.*]] = add i64 200, [[TMP2]]
; IF-EVL-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP1]]
; IF-EVL-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
; IF-EVL-NEXT: [[TMP3:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT: [[TMP4:%.*]] = mul i64 [[TMP3]], 2
; IF-EVL-NEXT: br label [[VECTOR_BODY:%.*]]
; IF-EVL: vector.body:
; IF-EVL-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; IF-EVL-NEXT: [[EVL_BASED_IV:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], [[VECTOR_BODY]] ]
; IF-EVL-NEXT: [[TMP5:%.*]] = sub i64 200, [[EVL_BASED_IV]]
; IF-EVL-NEXT: [[TMP6:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[TMP5]], i32 2, i1 true)
; IF-EVL-NEXT: [[TMP7:%.*]] = add i64 [[EVL_BASED_IV]], 0
; IF-EVL-NEXT: [[TMP8:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[TMP7]]
; IF-EVL-NEXT: [[TMP9:%.*]] = getelementptr i64, ptr [[TMP8]], i32 0
; IF-EVL-NEXT: [[VP_OP_LOAD:%.*]] = call <vscale x 2 x i64> @llvm.vp.load.nxv2i64.p0(ptr align 8 [[TMP9]], <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer), i32 [[TMP6]])
; IF-EVL-NEXT: [[TMP10:%.*]] = add i64 [[TMP7]], 200
; IF-EVL-NEXT: [[TMP11:%.*]] = getelementptr i64, ptr [[P]], i64 [[TMP10]]
; IF-EVL-NEXT: [[TMP12:%.*]] = getelementptr i64, ptr [[TMP11]], i32 0
; IF-EVL-NEXT: call void @llvm.vp.store.nxv2i64.p0(<vscale x 2 x i64> [[VP_OP_LOAD]], ptr align 8 [[TMP12]], <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer), i32 [[TMP6]])
; IF-EVL-NEXT: [[TMP13:%.*]] = zext i32 [[TMP6]] to i64
; IF-EVL-NEXT: [[INDEX_EVL_NEXT]] = add i64 [[TMP13]], [[EVL_BASED_IV]]
; IF-EVL-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP4]]
; IF-EVL-NEXT: [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; IF-EVL-NEXT: br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; IF-EVL: middle.block:
; IF-EVL-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
; IF-EVL: scalar.ph:
; IF-EVL-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; IF-EVL-NEXT: br label [[LOOP:%.*]]
; IF-EVL: loop:
; IF-EVL-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; IF-EVL-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P]], i64 [[IV]]
; IF-EVL-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 8
; IF-EVL-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 200
; IF-EVL-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; IF-EVL-NEXT: store i64 [[V]], ptr [[A2]], align 8
; IF-EVL-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; IF-EVL-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 199
; IF-EVL-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT]], !llvm.loop [[LOOP3:![0-9]+]]
; IF-EVL: exit:
; IF-EVL-NEXT: ret void
;
; NO-VP-LABEL: @test(
; NO-VP-NEXT: entry:
; NO-VP-NEXT: br label [[LOOP:%.*]]
; NO-VP: loop:
; NO-VP-NEXT: [[IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; NO-VP-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[IV]]
; NO-VP-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 8
; NO-VP-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 200
; NO-VP-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; NO-VP-NEXT: store i64 [[V]], ptr [[A2]], align 8
; NO-VP-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; NO-VP-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 199
; NO-VP-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT:%.*]]
; NO-VP: exit:
; NO-VP-NEXT: ret void
;
entry:
br label %loop
loop:
%iv = phi i64 [0, %entry], [%iv.next, %loop]
%a1 = getelementptr i64, ptr %p, i64 %iv
%v = load i64, ptr %a1, align 8
%offset = add i64 %iv, 200
%a2 = getelementptr i64, ptr %p, i64 %offset
store i64 %v, ptr %a2, align 8
%iv.next = add i64 %iv, 1
%cmp = icmp ne i64 %iv, 199
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
; Dependence distance is less than trip count, thus we must prove that
; chosen VF guaranteed to be less than dependence distance.
define void @test_may_clobber1(ptr %p) {
; IF-EVL-LABEL: @test_may_clobber1(
; IF-EVL-NEXT: entry:
; IF-EVL-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; IF-EVL: vector.ph:
; IF-EVL-NEXT: br label [[VECTOR_BODY:%.*]]
; IF-EVL: vector.body:
; IF-EVL-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; IF-EVL-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; IF-EVL-NEXT: [[TMP1:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[TMP0]]
; IF-EVL-NEXT: [[TMP2:%.*]] = getelementptr i64, ptr [[TMP1]], i32 0
; IF-EVL-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP2]], align 32
; IF-EVL-NEXT: [[TMP3:%.*]] = add i64 [[TMP0]], 100
; IF-EVL-NEXT: [[TMP4:%.*]] = getelementptr i64, ptr [[P]], i64 [[TMP3]]
; IF-EVL-NEXT: [[TMP5:%.*]] = getelementptr i64, ptr [[TMP4]], i32 0
; IF-EVL-NEXT: store <4 x i64> [[WIDE_LOAD]], ptr [[TMP5]], align 32
; IF-EVL-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; IF-EVL-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], 200
; IF-EVL-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; IF-EVL: middle.block:
; IF-EVL-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
; IF-EVL: scalar.ph:
; IF-EVL-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 200, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; IF-EVL-NEXT: br label [[LOOP:%.*]]
; IF-EVL: loop:
; IF-EVL-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; IF-EVL-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P]], i64 [[IV]]
; IF-EVL-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 32
; IF-EVL-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 100
; IF-EVL-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; IF-EVL-NEXT: store i64 [[V]], ptr [[A2]], align 32
; IF-EVL-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; IF-EVL-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 199
; IF-EVL-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT]], !llvm.loop [[LOOP5:![0-9]+]]
; IF-EVL: exit:
; IF-EVL-NEXT: ret void
;
; NO-VP-LABEL: @test_may_clobber1(
; NO-VP-NEXT: entry:
; NO-VP-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; NO-VP: vector.ph:
; NO-VP-NEXT: br label [[VECTOR_BODY:%.*]]
; NO-VP: vector.body:
; NO-VP-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; NO-VP-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; NO-VP-NEXT: [[TMP1:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[TMP0]]
; NO-VP-NEXT: [[TMP2:%.*]] = getelementptr i64, ptr [[TMP1]], i32 0
; NO-VP-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i64>, ptr [[TMP2]], align 32
; NO-VP-NEXT: [[TMP3:%.*]] = add i64 [[TMP0]], 100
; NO-VP-NEXT: [[TMP4:%.*]] = getelementptr i64, ptr [[P]], i64 [[TMP3]]
; NO-VP-NEXT: [[TMP5:%.*]] = getelementptr i64, ptr [[TMP4]], i32 0
; NO-VP-NEXT: store <4 x i64> [[WIDE_LOAD]], ptr [[TMP5]], align 32
; NO-VP-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; NO-VP-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], 200
; NO-VP-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; NO-VP: middle.block:
; NO-VP-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
; NO-VP: scalar.ph:
; NO-VP-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 200, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; NO-VP-NEXT: br label [[LOOP:%.*]]
; NO-VP: loop:
; NO-VP-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; NO-VP-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P]], i64 [[IV]]
; NO-VP-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 32
; NO-VP-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 100
; NO-VP-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; NO-VP-NEXT: store i64 [[V]], ptr [[A2]], align 32
; NO-VP-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; NO-VP-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 199
; NO-VP-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT]], !llvm.loop [[LOOP3:![0-9]+]]
; NO-VP: exit:
; NO-VP-NEXT: ret void
;
entry:
br label %loop
loop:
%iv = phi i64 [0, %entry], [%iv.next, %loop]
%a1 = getelementptr i64, ptr %p, i64 %iv
%v = load i64, ptr %a1, align 32
%offset = add i64 %iv, 100
%a2 = getelementptr i64, ptr %p, i64 %offset
store i64 %v, ptr %a2, align 32
%iv.next = add i64 %iv, 1
%cmp = icmp ne i64 %iv, 199
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
define void @test_may_clobber2(ptr %p) {
; IF-EVL-LABEL: @test_may_clobber2(
; IF-EVL-NEXT: entry:
; IF-EVL-NEXT: br label [[LOOP:%.*]]
; IF-EVL: loop:
; IF-EVL-NEXT: [[IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; IF-EVL-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[IV]]
; IF-EVL-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 32
; IF-EVL-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 9
; IF-EVL-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; IF-EVL-NEXT: store i64 [[V]], ptr [[A2]], align 32
; IF-EVL-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; IF-EVL-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 199
; IF-EVL-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT:%.*]]
; IF-EVL: exit:
; IF-EVL-NEXT: ret void
;
; NO-VP-LABEL: @test_may_clobber2(
; NO-VP-NEXT: entry:
; NO-VP-NEXT: br label [[LOOP:%.*]]
; NO-VP: loop:
; NO-VP-NEXT: [[IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; NO-VP-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[IV]]
; NO-VP-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 32
; NO-VP-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 9
; NO-VP-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; NO-VP-NEXT: store i64 [[V]], ptr [[A2]], align 32
; NO-VP-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; NO-VP-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 199
; NO-VP-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT:%.*]]
; NO-VP: exit:
; NO-VP-NEXT: ret void
;
entry:
br label %loop
loop:
%iv = phi i64 [0, %entry], [%iv.next, %loop]
%a1 = getelementptr i64, ptr %p, i64 %iv
%v = load i64, ptr %a1, align 32
%offset = add i64 %iv, 9
%a2 = getelementptr i64, ptr %p, i64 %offset
store i64 %v, ptr %a2, align 32
%iv.next = add i64 %iv, 1
%cmp = icmp ne i64 %iv, 199
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
define void @test_may_clobber3(ptr %p) {
; IF-EVL-LABEL: @test_may_clobber3(
; IF-EVL-NEXT: entry:
; IF-EVL-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; IF-EVL: vector.ph:
; IF-EVL-NEXT: br label [[VECTOR_BODY:%.*]]
; IF-EVL: vector.body:
; IF-EVL-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; IF-EVL-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; IF-EVL-NEXT: [[TMP1:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[TMP0]]
; IF-EVL-NEXT: [[TMP2:%.*]] = getelementptr i64, ptr [[TMP1]], i32 0
; IF-EVL-NEXT: [[WIDE_LOAD:%.*]] = load <2 x i64>, ptr [[TMP2]], align 32
; IF-EVL-NEXT: [[TMP3:%.*]] = add i64 [[TMP0]], 10
; IF-EVL-NEXT: [[TMP4:%.*]] = getelementptr i64, ptr [[P]], i64 [[TMP3]]
; IF-EVL-NEXT: [[TMP5:%.*]] = getelementptr i64, ptr [[TMP4]], i32 0
; IF-EVL-NEXT: store <2 x i64> [[WIDE_LOAD]], ptr [[TMP5]], align 32
; IF-EVL-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
; IF-EVL-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], 200
; IF-EVL-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; IF-EVL: middle.block:
; IF-EVL-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
; IF-EVL: scalar.ph:
; IF-EVL-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 200, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; IF-EVL-NEXT: br label [[LOOP:%.*]]
; IF-EVL: loop:
; IF-EVL-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; IF-EVL-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P]], i64 [[IV]]
; IF-EVL-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 32
; IF-EVL-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 10
; IF-EVL-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; IF-EVL-NEXT: store i64 [[V]], ptr [[A2]], align 32
; IF-EVL-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; IF-EVL-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 199
; IF-EVL-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT]], !llvm.loop [[LOOP7:![0-9]+]]
; IF-EVL: exit:
; IF-EVL-NEXT: ret void
;
; NO-VP-LABEL: @test_may_clobber3(
; NO-VP-NEXT: entry:
; NO-VP-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; NO-VP: vector.ph:
; NO-VP-NEXT: br label [[VECTOR_BODY:%.*]]
; NO-VP: vector.body:
; NO-VP-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; NO-VP-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; NO-VP-NEXT: [[TMP1:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[TMP0]]
; NO-VP-NEXT: [[TMP2:%.*]] = getelementptr i64, ptr [[TMP1]], i32 0
; NO-VP-NEXT: [[WIDE_LOAD:%.*]] = load <2 x i64>, ptr [[TMP2]], align 32
; NO-VP-NEXT: [[TMP3:%.*]] = add i64 [[TMP0]], 10
; NO-VP-NEXT: [[TMP4:%.*]] = getelementptr i64, ptr [[P]], i64 [[TMP3]]
; NO-VP-NEXT: [[TMP5:%.*]] = getelementptr i64, ptr [[TMP4]], i32 0
; NO-VP-NEXT: store <2 x i64> [[WIDE_LOAD]], ptr [[TMP5]], align 32
; NO-VP-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
; NO-VP-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], 200
; NO-VP-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; NO-VP: middle.block:
; NO-VP-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
; NO-VP: scalar.ph:
; NO-VP-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 200, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; NO-VP-NEXT: br label [[LOOP:%.*]]
; NO-VP: loop:
; NO-VP-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; NO-VP-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P]], i64 [[IV]]
; NO-VP-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 32
; NO-VP-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 10
; NO-VP-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; NO-VP-NEXT: store i64 [[V]], ptr [[A2]], align 32
; NO-VP-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; NO-VP-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 199
; NO-VP-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT]], !llvm.loop [[LOOP5:![0-9]+]]
; NO-VP: exit:
; NO-VP-NEXT: ret void
;
entry:
br label %loop
loop:
%iv = phi i64 [0, %entry], [%iv.next, %loop]
%a1 = getelementptr i64, ptr %p, i64 %iv
%v = load i64, ptr %a1, align 32
%offset = add i64 %iv, 10
%a2 = getelementptr i64, ptr %p, i64 %offset
store i64 %v, ptr %a2, align 32
%iv.next = add i64 %iv, 1
%cmp = icmp ne i64 %iv, 199
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
; Trviailly no overlap due to maximum possible value of VLEN and LMUL
define void @trivial_due_max_vscale(ptr %p) {
; IF-EVL-LABEL: @trivial_due_max_vscale(
; IF-EVL-NEXT: entry:
; IF-EVL-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; IF-EVL: vector.ph:
; IF-EVL-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 2
; IF-EVL-NEXT: [[TMP2:%.*]] = sub i64 [[TMP1]], 1
; IF-EVL-NEXT: [[N_RND_UP:%.*]] = add i64 200, [[TMP2]]
; IF-EVL-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP1]]
; IF-EVL-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
; IF-EVL-NEXT: [[TMP3:%.*]] = call i64 @llvm.vscale.i64()
; IF-EVL-NEXT: [[TMP4:%.*]] = mul i64 [[TMP3]], 2
; IF-EVL-NEXT: br label [[VECTOR_BODY:%.*]]
; IF-EVL: vector.body:
; IF-EVL-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; IF-EVL-NEXT: [[EVL_BASED_IV:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], [[VECTOR_BODY]] ]
; IF-EVL-NEXT: [[TMP5:%.*]] = sub i64 200, [[EVL_BASED_IV]]
; IF-EVL-NEXT: [[TMP6:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[TMP5]], i32 2, i1 true)
; IF-EVL-NEXT: [[TMP7:%.*]] = add i64 [[EVL_BASED_IV]], 0
; IF-EVL-NEXT: [[TMP8:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[TMP7]]
; IF-EVL-NEXT: [[TMP9:%.*]] = getelementptr i64, ptr [[TMP8]], i32 0
; IF-EVL-NEXT: [[VP_OP_LOAD:%.*]] = call <vscale x 2 x i64> @llvm.vp.load.nxv2i64.p0(ptr align 32 [[TMP9]], <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer), i32 [[TMP6]])
; IF-EVL-NEXT: [[TMP10:%.*]] = add i64 [[TMP7]], 8192
; IF-EVL-NEXT: [[TMP11:%.*]] = getelementptr i64, ptr [[P]], i64 [[TMP10]]
; IF-EVL-NEXT: [[TMP12:%.*]] = getelementptr i64, ptr [[TMP11]], i32 0
; IF-EVL-NEXT: call void @llvm.vp.store.nxv2i64.p0(<vscale x 2 x i64> [[VP_OP_LOAD]], ptr align 32 [[TMP12]], <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer), i32 [[TMP6]])
; IF-EVL-NEXT: [[TMP13:%.*]] = zext i32 [[TMP6]] to i64
; IF-EVL-NEXT: [[INDEX_EVL_NEXT]] = add i64 [[TMP13]], [[EVL_BASED_IV]]
; IF-EVL-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP4]]
; IF-EVL-NEXT: [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; IF-EVL-NEXT: br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; IF-EVL: middle.block:
; IF-EVL-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
; IF-EVL: scalar.ph:
; IF-EVL-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; IF-EVL-NEXT: br label [[LOOP:%.*]]
; IF-EVL: loop:
; IF-EVL-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; IF-EVL-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P]], i64 [[IV]]
; IF-EVL-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 32
; IF-EVL-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 8192
; IF-EVL-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; IF-EVL-NEXT: store i64 [[V]], ptr [[A2]], align 32
; IF-EVL-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; IF-EVL-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 199
; IF-EVL-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT]], !llvm.loop [[LOOP9:![0-9]+]]
; IF-EVL: exit:
; IF-EVL-NEXT: ret void
;
; NO-VP-LABEL: @trivial_due_max_vscale(
; NO-VP-NEXT: entry:
; NO-VP-NEXT: br label [[LOOP:%.*]]
; NO-VP: loop:
; NO-VP-NEXT: [[IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; NO-VP-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[IV]]
; NO-VP-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 32
; NO-VP-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 8192
; NO-VP-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; NO-VP-NEXT: store i64 [[V]], ptr [[A2]], align 32
; NO-VP-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; NO-VP-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 199
; NO-VP-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT:%.*]]
; NO-VP: exit:
; NO-VP-NEXT: ret void
;
entry:
br label %loop
loop:
%iv = phi i64 [0, %entry], [%iv.next, %loop]
%a1 = getelementptr i64, ptr %p, i64 %iv
%v = load i64, ptr %a1, align 32
%offset = add i64 %iv, 8192
%a2 = getelementptr i64, ptr %p, i64 %offset
store i64 %v, ptr %a2, align 32
%iv.next = add i64 %iv, 1
%cmp = icmp ne i64 %iv, 199
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
; Dependence distance could be violated via LMUL>=2 or interleaving
define void @no_high_lmul_or_interleave(ptr %p) {
; IF-EVL-LABEL: @no_high_lmul_or_interleave(
; IF-EVL-NEXT: entry:
; IF-EVL-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; IF-EVL: vector.ph:
; IF-EVL-NEXT: br label [[VECTOR_BODY:%.*]]
; IF-EVL: vector.body:
; IF-EVL-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; IF-EVL-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; IF-EVL-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[INDEX]], i64 0
; IF-EVL-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer
; IF-EVL-NEXT: [[VEC_IV:%.*]] = add <4 x i64> [[BROADCAST_SPLAT]], <i64 0, i64 1, i64 2, i64 3>
; IF-EVL-NEXT: [[TMP1:%.*]] = icmp ule <4 x i64> [[VEC_IV]], <i64 3001, i64 3001, i64 3001, i64 3001>
; IF-EVL-NEXT: [[TMP2:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[TMP0]]
; IF-EVL-NEXT: [[TMP3:%.*]] = getelementptr i64, ptr [[TMP2]], i32 0
; IF-EVL-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <4 x i64> @llvm.masked.load.v4i64.p0(ptr [[TMP3]], i32 32, <4 x i1> [[TMP1]], <4 x i64> poison)
; IF-EVL-NEXT: [[TMP4:%.*]] = add i64 [[TMP0]], 1024
; IF-EVL-NEXT: [[TMP5:%.*]] = getelementptr i64, ptr [[P]], i64 [[TMP4]]
; IF-EVL-NEXT: [[TMP6:%.*]] = getelementptr i64, ptr [[TMP5]], i32 0
; IF-EVL-NEXT: call void @llvm.masked.store.v4i64.p0(<4 x i64> [[WIDE_MASKED_LOAD]], ptr [[TMP6]], i32 32, <4 x i1> [[TMP1]])
; IF-EVL-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4
; IF-EVL-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], 3004
; IF-EVL-NEXT: br i1 [[TMP7]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; IF-EVL: middle.block:
; IF-EVL-NEXT: br i1 true, label [[EXIT:%.*]], label [[SCALAR_PH]]
; IF-EVL: scalar.ph:
; IF-EVL-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 3004, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; IF-EVL-NEXT: br label [[LOOP:%.*]]
; IF-EVL: loop:
; IF-EVL-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; IF-EVL-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P]], i64 [[IV]]
; IF-EVL-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 32
; IF-EVL-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 1024
; IF-EVL-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; IF-EVL-NEXT: store i64 [[V]], ptr [[A2]], align 32
; IF-EVL-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; IF-EVL-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 3001
; IF-EVL-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT]], !llvm.loop [[LOOP11:![0-9]+]]
; IF-EVL: exit:
; IF-EVL-NEXT: ret void
;
; NO-VP-LABEL: @no_high_lmul_or_interleave(
; NO-VP-NEXT: entry:
; NO-VP-NEXT: br label [[LOOP:%.*]]
; NO-VP: loop:
; NO-VP-NEXT: [[IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]
; NO-VP-NEXT: [[A1:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[IV]]
; NO-VP-NEXT: [[V:%.*]] = load i64, ptr [[A1]], align 32
; NO-VP-NEXT: [[OFFSET:%.*]] = add i64 [[IV]], 1024
; NO-VP-NEXT: [[A2:%.*]] = getelementptr i64, ptr [[P]], i64 [[OFFSET]]
; NO-VP-NEXT: store i64 [[V]], ptr [[A2]], align 32
; NO-VP-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; NO-VP-NEXT: [[CMP:%.*]] = icmp ne i64 [[IV]], 3001
; NO-VP-NEXT: br i1 [[CMP]], label [[LOOP]], label [[EXIT:%.*]]
; NO-VP: exit:
; NO-VP-NEXT: ret void
;
entry:
br label %loop
loop:
%iv = phi i64 [0, %entry], [%iv.next, %loop]
%a1 = getelementptr i64, ptr %p, i64 %iv
%v = load i64, ptr %a1, align 32
%offset = add i64 %iv, 1024
%a2 = getelementptr i64, ptr %p, i64 %offset
store i64 %v, ptr %a2, align 32
%iv.next = add i64 %iv, 1
%cmp = icmp ne i64 %iv, 3001
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
define void @non-power-2-storeloadforward(ptr %A) {
; IF-EVL-LABEL: @non-power-2-storeloadforward(
; IF-EVL-NEXT: entry:
; IF-EVL-NEXT: br label [[FOR_BODY:%.*]]
; IF-EVL: for.body:
; IF-EVL-NEXT: [[IV:%.*]] = phi i64 [ 16, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; IF-EVL-NEXT: [[TMP0:%.*]] = add nsw i64 [[IV]], -3
; IF-EVL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[TMP0]]
; IF-EVL-NEXT: [[TMP1:%.*]] = load i32, ptr [[ARRAYIDX]], align 4
; IF-EVL-NEXT: [[TMP2:%.*]] = add nsw i64 [[IV]], 4
; IF-EVL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP2]]
; IF-EVL-NEXT: [[TMP3:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4
; IF-EVL-NEXT: [[ADD3:%.*]] = add nsw i32 [[TMP3]], [[TMP1]]
; IF-EVL-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IV]]
; IF-EVL-NEXT: store i32 [[ADD3]], ptr [[ARRAYIDX5]], align 4
; IF-EVL-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; IF-EVL-NEXT: [[LFTR_WIDEIV:%.*]] = trunc i64 [[IV_NEXT]] to i32
; IF-EVL-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[LFTR_WIDEIV]], 128
; IF-EVL-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END:%.*]]
; IF-EVL: for.end:
; IF-EVL-NEXT: ret void
;
; NO-VP-LABEL: @non-power-2-storeloadforward(
; NO-VP-NEXT: entry:
; NO-VP-NEXT: br label [[FOR_BODY:%.*]]
; NO-VP: for.body:
; NO-VP-NEXT: [[IV:%.*]] = phi i64 [ 16, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; NO-VP-NEXT: [[TMP0:%.*]] = add nsw i64 [[IV]], -3
; NO-VP-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[TMP0]]
; NO-VP-NEXT: [[TMP1:%.*]] = load i32, ptr [[ARRAYIDX]], align 4
; NO-VP-NEXT: [[TMP2:%.*]] = add nsw i64 [[IV]], 4
; NO-VP-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP2]]
; NO-VP-NEXT: [[TMP3:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4
; NO-VP-NEXT: [[ADD3:%.*]] = add nsw i32 [[TMP3]], [[TMP1]]
; NO-VP-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IV]]
; NO-VP-NEXT: store i32 [[ADD3]], ptr [[ARRAYIDX5]], align 4
; NO-VP-NEXT: [[IV_NEXT]] = add i64 [[IV]], 1
; NO-VP-NEXT: [[LFTR_WIDEIV:%.*]] = trunc i64 [[IV_NEXT]] to i32
; NO-VP-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[LFTR_WIDEIV]], 128
; NO-VP-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END:%.*]]
; NO-VP: for.end:
; NO-VP-NEXT: ret void
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ 16, %entry ], [ %iv.next, %for.body ]
%0 = add nsw i64 %iv, -3
%arrayidx = getelementptr inbounds i32, ptr %A, i64 %0
%1 = load i32, ptr %arrayidx, align 4
%2 = add nsw i64 %iv, 4
%arrayidx2 = getelementptr inbounds i32, ptr %A, i64 %2
%3 = load i32, ptr %arrayidx2, align 4
%add3 = add nsw i32 %3, %1
%arrayidx5 = getelementptr inbounds i32, ptr %A, i64 %iv
store i32 %add3, ptr %arrayidx5, align 4
%iv.next = add i64 %iv, 1
%lftr.wideiv = trunc i64 %iv.next to i32
%exitcond = icmp ne i32 %lftr.wideiv, 128
br i1 %exitcond, label %for.body, label %for.end
for.end:
ret void
}
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