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test that reassociate can handle shifts

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llvm-svn: 21760
This commit is contained in:
Chris Lattner 2005-05-07 04:23:29 +00:00
parent b1ea71fbcd
commit e265bf6fe5
1 changed files with 10 additions and 0 deletions
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test/Regression/Transforms/Reassociate/shifttest.ll Normal file
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; With shl->mul reassociation, we can see that this is (shl A, 9) * A
;
; RUN: llvm-as < %s | opt -reassociate -instcombine | llvm-dis | grep 'shl .*, ubyte 9'
int %test(int %A, int %B) {
%X = shl int %A, ubyte 5
%Y = shl int %A, ubyte 4
%Z = mul int %Y, %X
ret int %Z
}