6204ac4536
None of the code in this function was written to handle vectors. Most of the cases already fail for vectors for one reason or another. The exception is an optimization that detects identical operands. This can be triggered by vectors, but the code always creates a 0 or 1 constants in a scalar register which is incorrect for vectors. Fixes PR49706.
37 lines
1.2 KiB
LLVM
37 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -O0 -mattr=avx | FileCheck %s
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define void @foo() {
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; CHECK-LABEL: foo:
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; CHECK: # %bb.0: # %BB
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; CHECK-NEXT: movb -{{[0-9]+}}(%rsp), %al
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; CHECK-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; CHECK-NEXT: vmovaps %xmm0, {{[-0-9]+}}(%r{{[sb]}}p) # 16-byte Spill
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; CHECK-NEXT: # %bb.1: # %BB0
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; CHECK-NEXT: vmovaps {{[-0-9]+}}(%r{{[sb]}}p), %xmm0 # 16-byte Reload
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; CHECK-NEXT: vpslld $31, %xmm0, %xmm0
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; CHECK-NEXT: vpsrad $31, %xmm0, %xmm1
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; CHECK-NEXT: vpmovsxdq %xmm1, %xmm2
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; CHECK-NEXT: # implicit-def: $ymm0
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; CHECK-NEXT: vmovaps %xmm2, %xmm0
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; CHECK-NEXT: vpshufd {{.*#+}} xmm1 = xmm1[2,3,2,3]
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; CHECK-NEXT: vpmovsxdq %xmm1, %xmm1
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; CHECK-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; CHECK-NEXT: # %bb.2: # %BB1
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; CHECK-NEXT: vzeroupper
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; CHECK-NEXT: retq
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BB:
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%A1 = alloca i1, align 1
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%L1 = load i1, i1* %A1, align 1
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%Cmp = icmp ugt <4 x i64> zeroinitializer, zeroinitializer
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br label %BB0
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BB0:
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%Se = sext <4 x i1> %Cmp to <4 x i64>
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br label %BB1
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BB1:
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%Sl = select i1 %L1, <4 x i64> %Se, <4 x i64> zeroinitializer
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ret void
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}
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