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| author | Craig Topper <craig.topper@intel.com> | 2020-08-08 11:03:16 -0700 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2020-08-08 11:29:41 -0700 |
| commit | 44b260cb0aab387d85e4d59c16fc7b8866264f5e (patch) | |
| tree | d1a6f7aca0e77ffa0f82314e92682a50b7b3a96b /llvm/unittests/Support/FileCheckTest.cpp | |
| parent | f13e92d4b273db255c6955eb7f2269caf1eb60c3 (diff) | |
| download | llvm-44b260cb0aab387d85e4d59c16fc7b8866264f5e.zip llvm-44b260cb0aab387d85e4d59c16fc7b8866264f5e.tar.gz llvm-44b260cb0aab387d85e4d59c16fc7b8866264f5e.tar.bz2 | |
[X86] Increase the number of instructions searched for isSafeToClobberEFLAGS in a couple places
Previously this function searched 4 instructions forwards or
backwards to determine if it was ok to clobber eflags.
This is called in 3 places: rematerialization, turning 2 operand
leas into adds or splitting 3 ops leas into an lea and add on some
CPU targets.
This patch increases the search limit to 10 instructions for
rematerialization and 2 operand lea to add. I've left the old
treshold for 3 ops lea spliting as that increases code size.
Fixes PR47024 and PR43014
Diffstat (limited to 'llvm/unittests/Support/FileCheckTest.cpp')
0 files changed, 0 insertions, 0 deletions