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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-01-12 16:38:56 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-01-12 16:38:56 +0000 |
| commit | a0069ba0dbe797ae18354cdd00d84e40f68fb97d (patch) | |
| tree | 030852d4727ccd7ae0995559513d330a9493cdd7 /llvm/test | |
| parent | 63a6f3acbd80c602647a2f37aabd2a5c2967094f (diff) | |
| download | bcm5719-llvm-a0069ba0dbe797ae18354cdd00d84e40f68fb97d.tar.gz bcm5719-llvm-a0069ba0dbe797ae18354cdd00d84e40f68fb97d.zip | |
[X86] More aggressive shuffle mask widening in combineExtractWithShuffle
Use demanded extract index to set most of the shuffle mask to undef, making it easier to widen and peek through.
llvm-svn: 351013
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/X86/and-load-fold.ll | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/llvm/test/CodeGen/X86/and-load-fold.ll b/llvm/test/CodeGen/X86/and-load-fold.ll index 27520f88a3f..367ef2a344a 100644 --- a/llvm/test/CodeGen/X86/and-load-fold.ll +++ b/llvm/test/CodeGen/X86/and-load-fold.ll @@ -7,8 +7,7 @@ define i8 @foo(<4 x i8>* %V) { ; CHECK-LABEL: foo: ; CHECK: # %bb.0: ; CHECK-NEXT: movd {{.*#+}} xmm0 = mem[0],zero,zero,zero -; CHECK-NEXT: punpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7] -; CHECK-NEXT: pextrw $2, %xmm0, %eax +; CHECK-NEXT: pextrw $1, %xmm0, %eax ; CHECK-NEXT: andb $95, %al ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: retq |
