llvm/test/Transforms/Reassociate/shifttest.ll
Chris Lattner 5cc924ac42 test that reassociate can handle shifts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21760 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-07 04:23:29 +00:00

11 lines
276 B
LLVM

; 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
}