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new testcase, vector operations should be CSE'd 

llvm-svn: 27690
This commit is contained in:
Chris Lattner 2006-04-14 05:09:53 +00:00
parent 326ff4eb93
commit 1c4ecc0c73
1 changed files with 26 additions and 0 deletions
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26
llvm/test/Regression/Transforms/GCSE/vectorops.ll Normal file
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; RUN: llvm-as < %s | opt -gcse -instcombine -disable-output &&
; RUN: llvm-as < %s | opt -gcse -instcombine | llvm-dis | not grep sub
uint %test_extractelement(<4 x uint> %V) {
%R = extractelement <4 x uint> %V, uint 1
%R2 = extractelement <4 x uint> %V, uint 1
%V = sub uint %R, %R2
ret uint %V
}
<4 x uint> %test_insertelement(<4 x uint> %V) {
%R = insertelement <4 x uint> %V, uint 0, uint 0
%R2 = insertelement <4 x uint> %V, uint 0, uint 0
%x = sub <4 x uint> %R, %R2
ret <4 x uint> %x
}
<4 x uint> %test_shufflevector(<4 x uint> %V) {
%R = shufflevector <4 x uint> %V, <4 x uint> %V,
<4 x uint> < uint 1, uint undef, uint 7, uint 2>
%R2 = shufflevector <4 x uint> %V, <4 x uint> %V,
<4 x uint> < uint 1, uint undef, uint 7, uint 2>
%x = sub <4 x uint> %R, %R2
ret <4 x uint> %x
}