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| author | Arnold Schwaighofer <aschwaighofer@apple.com> | 2013-02-04 02:52:05 +0000 |
|---|---|---|
| committer | Arnold Schwaighofer <aschwaighofer@apple.com> | 2013-02-04 02:52:05 +0000 |
| commit | 98f1012f9bc32db15d3a24385090bb3fa5a09420 (patch) | |
| tree | e8c539c9889c214fbf489fe182db2c42d258ec90 /clang/lib/Format/Format.cpp | |
| parent | a9c5bb3ff3a71dc0529ebf72c243c6388112b2c5 (diff) | |
| download | bcm5719-llvm-98f1012f9bc32db15d3a24385090bb3fa5a09420.tar.gz bcm5719-llvm-98f1012f9bc32db15d3a24385090bb3fa5a09420.zip | |
ARM cost model: Penalize insertelement into D subregisters
Swift has a renaming dependency if we load into D subregisters. We don't have a
way of distinguishing between insertelement operations of values from loads and
other values. Therefore, we are pessimistic for now (The performance problem
showed up in example 14 of gcc-loops).
radar://13096933
llvm-svn: 174300
Diffstat (limited to 'clang/lib/Format/Format.cpp')
0 files changed, 0 insertions, 0 deletions
