Teresa Johnson b98b101080 [PGO] Fix handling of cold entry count for instrumented PGO ... Summary: In r277849, getEntryCount was changed to return None when the entry count was 0, specifically for SamplePGO where it means no samples were recorded. However, for instrumentation PGO a 0 entry count should be returned directly, since it does mean that the function was completely cold. Otherwise we end up treating these functions conservatively in isFunctionEntryCold() and isColdBB(). Instead, for SamplePGO use -1 when there are no samples, and change getEntryCount to return None when the value is -1. Reviewers: danielcdh, davidxl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D41307 llvm-svn: 321018		2017-12-18 20:02:43 +00:00
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Coroutines	[coro] Make Spill a proper struct instead of deriving from pair.	2017-10-31 19:22:55 +00:00
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InstCombine	[InstCombine] canonicalize shifty abs(): ashr+add+xor --> cmp+neg+sel	2017-12-16 16:41:17 +00:00
Instrumentation	[PGO] add MST min edge selection heuristic to ensure non-zero entry count	2017-12-18 17:56:19 +00:00
IPO	[PGO] Fix handling of cold entry count for instrumented PGO	2017-12-18 20:02:43 +00:00
ObjCARC	Remove redundant includes from lib/Transforms.	2017-12-13 21:31:01 +00:00
Scalar	[SROA] Disable non-whole-alloca splits by default	2017-12-18 06:47:37 +00:00
Utils	Fix more inconsistent line endings. NFC.	2017-12-18 19:46:56 +00:00
Vectorize	[LV] Extend InstWidening with CM_Widen_Recursive	2017-12-16 02:55:24 +00:00
CMakeLists.txt
LLVMBuild.txt