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| author | Chad Rosier <mcrosier@codeaurora.org> | 2014-10-31 19:02:38 +0000 |
|---|---|---|
| committer | Chad Rosier <mcrosier@codeaurora.org> | 2014-10-31 19:02:38 +0000 |
| commit | 7bb413e3baf859e69b9c844108a0bd71eb176140 (patch) | |
| tree | 4047444a197611d9f7d8293f9bda7e9c45f1f78d /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | 5f1b4e8f58cdad859568f7bf213fd6ad62dbb072 (diff) | |
[AArch64] Check Dest Register Liveness in CondOpt pass.
Our internal test reveals such case should not be transformed:
cmp x17, #3
b.lt .LBB10_15
...
subs x12, x12, #1
b.gt .LBB10_1
where x12 is a liveout, becomes:
cmp x17, #2
b.le .LBB10_15
...
subs x12, x12, #2
b.ge .LBB10_1
Unable to provide test case as it's difficult to reproduce on community branch.
http://reviews.llvm.org/D6048
Patch by Zhaoshi Zheng <zhaoshiz@codeaurora.org>!
llvm-svn: 220987
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
0 files changed, 0 insertions, 0 deletions