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| author | Evan Cheng <evan.cheng@apple.com> | 2010-02-19 00:34:39 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-02-19 00:34:39 +0000 |
| commit | d2d9252f35673f3a6c49ee302e8c735dea02eefe (patch) | |
| tree | e37178731e81a90db050ac5c8a1d87dc619dd2ae /clang/lib/CodeGen/CodeGenModule.cpp | |
| parent | dc61962e67cc49444c74c1bc7d4a9664ce68d961 (diff) | |
| download | bcm5719-llvm-d2d9252f35673f3a6c49ee302e8c735dea02eefe.tar.gz bcm5719-llvm-d2d9252f35673f3a6c49ee302e8c735dea02eefe.zip | |
Transform (xor (setcc), (setcc)) == / != 1 to
(xor (setcc), (setcc)) != / == 1.
e.g. On x86_64
%0 = icmp eq i32 %x, 0
%1 = icmp eq i32 %y, 0
%2 = xor i1 %1, %0
br i1 %2, label %bb, label %return
=>
testl %edi, %edi
sete %al
testl %esi, %esi
sete %cl
cmpb %al, %cl
je LBB1_2
llvm-svn: 96640
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
0 files changed, 0 insertions, 0 deletions
