1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-20 19:42:54 +02:00
llvm-mirror/test/CodeGen/X86/vec_shuffle-37.ll
Bruno Cardoso Lopes 601bf4c6d3 Using target specific nodes for shuffle nodes makes the mask
check more strict, breaking some cases not checked in the
testsuite, but also exposes some foldings not done before,
as this example:

  movaps  (%rdi), %xmm0
  movaps  (%rax), %xmm1
  movaps  %xmm0, %xmm2
  movss %xmm1, %xmm2
  shufps  $36, %xmm2, %xmm0

now is generated as:

  movaps  (%rdi), %xmm0
  movaps  %xmm0, %xmm1
  movlps  (%rax), %xmm1
  shufps  $36, %xmm1, %xmm0

llvm-svn: 112753
2010-09-01 22:33:20 +00:00

15 lines
434 B
LLVM

; RUN: llc < %s -march=x86-64 | FileCheck %s
define <4 x i32> @t00(<4 x i32>* %a0) nounwind ssp {
entry:
; CHECK: movaps (%rdi), %xmm0
; CHECK-NEXT: movaps %xmm0, %xmm1
; CHECK-NEXT: movlps (%rax), %xmm1
; CHECK-NEXT: shufps $36, %xmm1, %xmm0
%0 = load <4 x i32>* undef, align 16
%1 = load <4 x i32>* %a0, align 16
%2 = shufflevector <4 x i32> %1, <4 x i32> %0, <4 x i32> <i32 0, i32 1, i32 2, i32 4>
ret <4 x i32> %2
}