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authorJakob Stoklund Olesen <stoklund@2pi.dk>2011-04-02 06:03:35 +0000
committerJakob Stoklund Olesen <stoklund@2pi.dk>2011-04-02 06:03:35 +0000
commit91cbcaf95790c719d74cd034a19030d63b37eae3 (patch)
treec221b7e8d60dc36ae36418140ec61a7b8ae6b48b /llvm/lib/CodeGen/SplitKit.h
parent36171288ce69743f28126831036d3dd672d13653 (diff)
downloadbcm5719-llvm-91cbcaf95790c719d74cd034a19030d63b37eae3.tar.gz
bcm5719-llvm-91cbcaf95790c719d74cd034a19030d63b37eae3.zip
Add an InterferenceCache class for caching per-block interference ranges.
When the greedy register allocator is splitting multiple global live ranges, it tends to look at the same interference data many times. The InterferenceCache class caches queries for unaltered LiveIntervalUnions. llvm-svn: 128764
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