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| author | David Green <david.green@arm.com> | 2018-02-20 11:07:35 +0000 |
|---|---|---|
| committer | David Green <david.green@arm.com> | 2018-02-20 11:07:35 +0000 |
| commit | 056476497eae191c8e275f0a7a9547f1c1c87feb (patch) | |
| tree | 5407b4741783c33ed8e095bbb53f0934fec30eb3 /clang/lib/CodeGen/CodeGenModule.cpp | |
| parent | 76e5023dd3cbad6be47944b7fe8d075a148e11ef (diff) | |
| download | bcm5719-llvm-056476497eae191c8e275f0a7a9547f1c1c87feb.tar.gz bcm5719-llvm-056476497eae191c8e275f0a7a9547f1c1c87feb.zip | |
[ARM] Mark -1 as cheap in xor's for thumb1
We can always convert xor %a, -1 into MVN, even in thumb 1 where the -1
would not otherwise be considered a cheap constant. This prevents the
-1's from being pulled out into constants and potentially hoisted.
Differential Revision: https://reviews.llvm.org/D43451
llvm-svn: 325573
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
0 files changed, 0 insertions, 0 deletions
