441f94f4bd
If the reduced value was replaced by the extractelement instruction during vectorization and we attempt to check if this is so, need to check the tracked value, not the original (deleted) instruction. Otherwise, the compiler may crash Fixes https://github.com/llvm/llvm-project/issues/102279
35 lines
1.3 KiB
LLVM
35 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -S --passes=slp-vectorizer -slp-threshold=-99999 < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
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define void @test() {
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; CHECK-LABEL: define void @test() {
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; CHECK-NEXT: [[BB:.*]]:
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; CHECK-NEXT: br label %[[BB1:.*]]
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; CHECK: [[BB1]]:
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; CHECK-NEXT: [[TMP0:%.*]] = phi <2 x i32> [ zeroinitializer, %[[BB]] ], [ [[TMP4:%.*]], %[[BB1]] ]
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; CHECK-NEXT: [[TMP1:%.*]] = extractelement <2 x i32> [[TMP0]], i32 1
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; CHECK-NEXT: [[TMP2:%.*]] = call i8 @llvm.vector.reduce.mul.v4i8(<4 x i8> zeroinitializer)
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; CHECK-NEXT: [[TMP3:%.*]] = zext i8 [[TMP2]] to i32
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; CHECK-NEXT: [[OP_RDX:%.*]] = mul i32 [[TMP3]], [[TMP1]]
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; CHECK-NEXT: [[OP_RDX1:%.*]] = mul i32 [[OP_RDX]], 0
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; CHECK-NEXT: [[TMP4]] = insertelement <2 x i32> <i32 0, i32 poison>, i32 [[OP_RDX1]], i32 1
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; CHECK-NEXT: br label %[[BB1]]
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;
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bb:
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br label %bb1
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bb1:
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%phi = phi i32 [ 0, %bb ], [ %mul9, %bb1 ]
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%phi2 = phi i32 [ 0, %bb ], [ 0, %bb1 ]
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%trunc = trunc i64 0 to i32
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%mul = mul i32 0, %trunc
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%mul3 = mul i32 %trunc, %phi
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%mul4 = mul i32 %mul3, %mul
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%mul5 = mul i32 %mul4, %mul
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%trunc6 = trunc i64 0 to i32
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%mul7 = mul i32 0, %trunc6
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%mul8 = mul i32 %mul5, %mul7
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%mul9 = mul i32 %mul8, %mul7
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br label %bb1
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}
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