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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-09-22 21:39:34 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-09-22 21:39:34 +0000 |
| commit | e92e5ee81fe87c036fa41f85a31d4ded35732834 (patch) | |
| tree | 5d54a2b38accac483d2b7a5849ece2898b225660 /clang/lib/Frontend/InitHeaderSearch.cpp | |
| parent | 0f36544c08a75430752acd23b357ed4f7d3febdf (diff) | |
| download | bcm5719-llvm-e92e5ee81fe87c036fa41f85a31d4ded35732834.tar.gz bcm5719-llvm-e92e5ee81fe87c036fa41f85a31d4ded35732834.zip | |
Constrain register classes instead of emitting copies.
Sometimes register class constraints are trivial, like GR32->GR32_NOSP,
or GPR->rGPR. Teach InstrEmitter to simply constrain the virtual
register instead of emitting a copy in these cases.
Normally, these copies are handled by the coalescer. This saves some
coalescer work.
llvm-svn: 140340
Diffstat (limited to 'clang/lib/Frontend/InitHeaderSearch.cpp')
0 files changed, 0 insertions, 0 deletions
