ac217ee389
When checking for dependecies for gather nodes with users with the same last instruction, cannot rely on the index order, if there is (even potential!) cycle in the graph, which may cause order not work correctly and cause compiler crash. Fixes #127128
60 lines
2.3 KiB
LLVM
60 lines
2.3 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 -mtriple=x86_64-unknown-linux-gnu -mcpu=haswell < %s | FileCheck %s
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define void @test(float %0) {
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; CHECK-LABEL: define void @test(
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; CHECK-SAME: float [[TMP0:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x float> <float 0.000000e+00, float poison>, float [[TMP0]], i32 1
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; CHECK-NEXT: [[TMP3:%.*]] = fdiv <2 x float> [[TMP2]], zeroinitializer
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; CHECK-NEXT: [[TMP4:%.*]] = insertelement <2 x float> <float poison, float 0.000000e+00>, float [[TMP0]], i32 0
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; CHECK-NEXT: [[TMP5:%.*]] = fdiv <2 x float> [[TMP4]], zeroinitializer
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; CHECK-NEXT: br label %[[BB6:.*]]
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; CHECK: [[BB6]]:
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; CHECK-NEXT: [[TMP7:%.*]] = fmul <2 x float> [[TMP5]], zeroinitializer
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; CHECK-NEXT: [[TMP8:%.*]] = fsub <2 x float> zeroinitializer, [[TMP7]]
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; CHECK-NEXT: br label %[[BB10:.*]]
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; CHECK: [[BB9:.*]]:
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; CHECK-NEXT: br label %[[BB10]]
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; CHECK: [[BB10]]:
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; CHECK-NEXT: [[TMP11:%.*]] = phi <2 x float> [ [[TMP8]], %[[BB6]] ], [ poison, %[[BB9]] ]
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; CHECK-NEXT: br label %[[BB12:.*]]
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; CHECK: [[BB12]]:
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; CHECK-NEXT: [[TMP13:%.*]] = fmul <2 x float> [[TMP3]], zeroinitializer
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; CHECK-NEXT: [[TMP14:%.*]] = fsub <2 x float> [[TMP11]], [[TMP13]]
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; CHECK-NEXT: [[TMP15:%.*]] = extractelement <2 x float> [[TMP14]], i32 0
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; CHECK-NEXT: [[TMP16:%.*]] = extractelement <2 x float> [[TMP14]], i32 1
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; CHECK-NEXT: [[TMP17:%.*]] = fadd float [[TMP15]], [[TMP16]]
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; CHECK-NEXT: [[TMP18:%.*]] = call float @llvm.fabs.f32(float [[TMP17]])
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; CHECK-NEXT: ret void
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;
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%2 = fdiv float 0.000000e+00, 0.000000e+00
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%3 = fdiv float 0.000000e+00, 0.000000e+00
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%4 = fdiv float %0, 0.000000e+00
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br label %5
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5:
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%6 = fmul float %4, 0.000000e+00
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%7 = fsub float 0.000000e+00, %6
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%8 = fmul float %3, 0.000000e+00
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%9 = fsub float 0.000000e+00, %8
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br label %11
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10:
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br label %11
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11:
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%12 = phi float [ %7, %5 ], [ 0.000000e+00, %10 ]
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%13 = phi float [ %9, %5 ], [ 0.000000e+00, %10 ]
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br label %14
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14:
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%15 = fmul float %2, 0.000000e+00
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%16 = fsub float %12, %15
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%17 = fmul float %4, 0.000000e+00
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%18 = fsub float %13, %17
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%19 = fadd float %16, %18
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%20 = call float @llvm.fabs.f32(float %19)
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ret void
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}
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