Justin Bogner 7cb2c316a5 InstrProf: Don't keep a large sparse list around just to zero it ... The Terms vector here represented a polynomial of of all possible counters, and is used to simplify expressions when generating coverage mapping. There are a few problems with this: 1. Keeping the vector as a member is wasteful, since we clear it every time we use it. 2. Most expressions refer to a subset of the counters, so we end up iterating over a large number of zeros doing nothing a lot of the time. This updates the user of the vector to store the terms locally, and uses a sort and combine approach so that we only operate on counters that are actually used in a given expression. For small cases this makes very little difference, but in cases with a very large number of counted regions this is a significant performance fix. llvm-svn: 218879		2014-10-02 16:04:03 +00:00
..
CMakeLists.txt	Re-factor sample profile reader into lib/ProfileData.	2014-09-09 12:40:50 +00:00
CoverageMapping.cpp	InstrProf: Don't keep a large sparse list around just to zero it	2014-10-02 16:04:03 +00:00
CoverageMappingReader.cpp	llvm-cov: Move some reader debug output out of the tool.	2014-09-20 15:31:51 +00:00
CoverageMappingWriter.cpp	InstrProf: Simplify counting a file's regions when writing coverage (NFC)	2014-10-02 00:31:00 +00:00
InstrProf.cpp	Converting InstrProf's error_category to a ManagedStatic to avoid static constructors and destructors.	2014-09-19 23:19:24 +00:00
InstrProfIndexed.h	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00
InstrProfReader.cpp	llvm-profdata: Avoid undefined behaviour when reading raw profiles	2014-09-12 21:22:55 +00:00
InstrProfWriter.cpp	InstrProf: Allow multiple functions with the same name	2014-08-01 22:50:07 +00:00
LLVMBuild.txt	LLVMProfileData: Update LLVMBuild.txt corresponding to r217437.	2014-09-09 15:00:13 +00:00
Makefile
SampleProfReader.cpp	LineIterator: Provide a variant that keeps blank lines	2014-09-17 15:43:01 +00:00