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[X86][XOP] Added FIXME comments to missed shuffle combine opportunities 

Requested by @silvas

llvm-svn: 293916
This commit is contained in:
Simon Pilgrim 2017-02-02 18:26:28 +00:00
parent 93f9d5ce04
commit 3e64d066de
1 changed files with 2 additions and 0 deletions
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2
llvm/test/CodeGen/X86/vector-shuffle-combining-xop.ll
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@ -318,6 +318,7 @@ define <4 x i32> @combine_vpperm_10zz32BA(<4 x i32> %a0, <4 x i32> %a1) {
ret <4 x i32> %res3
}
; FIXME: Duplicated load in i686
define void @buildvector_v4f32_0404(float %a, float %b, <4 x float>* %ptr) {
; X32-LABEL: buildvector_v4f32_0404:
; X32: # BB#0:
@ -341,6 +342,7 @@ define void @buildvector_v4f32_0404(float %a, float %b, <4 x float>* %ptr) {
ret void
}
; FIXME: Failed to fold to vpermil2ps
define void @buildvector_v4f32_07z6(float %a, <4 x float> %b, <4 x float>* %ptr) {
; X32-LABEL: buildvector_v4f32_07z6:
; X32: # BB#0: