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| author | Tim Northover <tnorthover@apple.com> | 2015-10-23 20:30:02 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2015-10-23 20:30:02 +0000 |
| commit | d4f55c0b1b878df2aa28f0df382158cb69ed9e74 (patch) | |
| tree | 883648f1c14ae24a6d78f59f5f446a1307d1fc09 /llvm/unittests/MC/StringTableBuilderTest.cpp | |
| parent | 236bf3bfe47c331b481348a932190c88561517bf (diff) | |
| download | llvm-d4f55c0b1b878df2aa28f0df382158cb69ed9e74.zip llvm-d4f55c0b1b878df2aa28f0df382158cb69ed9e74.tar.gz llvm-d4f55c0b1b878df2aa28f0df382158cb69ed9e74.tar.bz2 | |
GVN: don't try to replace instruction with itself.
After some look-ahead PRE was added for GEPs, an instruction could end
up in the table of candidates before it was actually inspected. When
this happened the pass might decide it was the best candidate to
replace itself. This didn't go well.
Should fix PR25291
llvm-svn: 251145
Diffstat (limited to 'llvm/unittests/MC/StringTableBuilderTest.cpp')
0 files changed, 0 insertions, 0 deletions