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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-09-15 15:24:16 +0000 |
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| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-09-15 15:24:16 +0000 |
| commit | 031432f9ad24963282b7f71bd0592080f6229d20 (patch) | |
| tree | 0fd5c9d9e786b8fcb7947ecd63cd8baab4c383b4 /include | |
| parent | 9b82d50d209adf915d3c7f871dc82cb73349db80 (diff) | |
| download | llvm-031432f9ad24963282b7f71bd0592080f6229d20.tar.gz llvm-031432f9ad24963282b7f71bd0592080f6229d20.tar.bz2 llvm-031432f9ad24963282b7f71bd0592080f6229d20.tar.xz | |
Speed up LiveIntervals::shrinkToUse with some caching.
Blocks with multiple PHI successors only need to go on the worklist
once. Use a SmallPtrSet to track the live-out blocks that have already
been handled. This is a lot faster than the two live range check we
would otherwise do.
Also stop recomputing hasPHIKill flags. Like RenumberValues(), it is
conservatively correct to leave them in, and they are not used for
anything important.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139792 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions