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https://github.com/c64scene-ar/llvm-6502.git
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bbfda9c125
When trying to convert a BUILD_VECTOR into a shuffle, we try to split a single source vector that is twice as wide as the destination vector. We can not do this when we also need the zero vector to create a blend. This fixes PR22774. Differential Revision: http://reviews.llvm.org/D8040 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231219 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
688 B
LLVM
21 lines
688 B
LLVM
; RUN: llc -mattr=avx %s -o - | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-linux-gnu"
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@in = global <4 x i64> <i64 -1, i64 -1, i64 -1, i64 -1>, align 32
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@out = global <2 x i64> zeroinitializer, align 16
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define i32 @_Z3foov() {
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entry:
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; CHECK: vmovdqa in(%rip), %ymm0
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; CHECK-NEXT: vmovq %xmm0, %xmm0
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; CHECK-NEXT: vmovdqa %xmm0, out(%rip)
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%0 = load <4 x i64>, <4 x i64>* @in, align 32
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%vecext = extractelement <4 x i64> %0, i32 0
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%vecinit = insertelement <2 x i64> undef, i64 %vecext, i32 0
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%vecinit1 = insertelement <2 x i64> %vecinit, i64 0, i32 1
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store <2 x i64> %vecinit1, <2 x i64>* @out, align 16
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ret i32 0
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}
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