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testcase for PR1510

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llvm-svn: 37583
This commit is contained in:
Chris Lattner 2007-06-15 05:57:20 +00:00
parent 96c6cf8b89
commit 85890d8d1d
1 changed files with 27 additions and 0 deletions
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test/Transforms/InstCombine/and-or-not.ll Normal file
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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep xor | wc -l | grep 2
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep and
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep { or}
; PR1510
; These are all equivelent to A^B
define i32 @test1(i32 %a, i32 %b) {
entry:
%tmp3 = or i32 %b, %a ; <i32> [#uses=1]
%tmp3not = xor i32 %tmp3, -1 ; <i32> [#uses=1]
%tmp6 = and i32 %b, %a ; <i32> [#uses=1]
%tmp7 = or i32 %tmp6, %tmp3not ; <i32> [#uses=1]
%tmp7not = xor i32 %tmp7, -1 ; <i32> [#uses=1]
ret i32 %tmp7not
}
define i32 @test2(i32 %a, i32 %b) {
entry:
%tmp3 = or i32 %b, %a ; <i32> [#uses=1]
%tmp6 = and i32 %b, %a ; <i32> [#uses=1]
%tmp6not = xor i32 %tmp6, -1 ; <i32> [#uses=1]
%tmp7 = and i32 %tmp3, %tmp6not ; <i32> [#uses=1]
ret i32 %tmp7
}