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b98b101080
llvm-mirror/lib/IR
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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
..
AsmWriter.cpp [IR] redefine 'UnsafeAlgebra' / 'reassoc' fast-math-flags and add 'trans' fast-math-flag 2017-11-06 16:27:15 +00:00
AttributeImpl.h [IR] Fix some Clang-tidy modernize-use-using warnings; other minor fixes (NFC). 2017-06-19 22:05:08 +00:00
Attributes.cpp Hardware-assisted AddressSanitizer (llvm part). 2017-12-09 00:21:41 +00:00
AttributesCompatFunc.td Provide a way to specify inliner's attribute compatibility and merging. 2015-12-22 23:57:37 +00:00
AutoUpgrade.cpp Remove redundant includes from lib/IR. 2017-12-13 21:30:52 +00:00
BasicBlock.cpp Irreducible loop metadata for more accurate block frequency under PGO. 2017-11-02 22:26:51 +00:00
CMakeLists.txt GCOV: Move GCOV from IR & Support into ProfileData to fix layering 2017-11-03 20:57:10 +00:00
Comdat.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
ConstantFold.cpp [ConstantFold] Support vector index when factoring out GEP index into preceding dimensions 2017-12-04 19:56:33 +00:00
ConstantFold.h IR: Introduce inrange attribute on getelementptr indices. 2016-11-10 22:34:55 +00:00
ConstantRange.cpp [ConstantRange] Support for ashr in ConstantRange computation 2017-12-18 13:01:32 +00:00
Constants.cpp Remove redundant includes from lib/IR. 2017-12-13 21:30:52 +00:00
ConstantsContext.h [IR] Stop deleting other signatures of User::operator new when we override one signature in a class derived from User 2017-06-12 23:25:15 +00:00
Core.cpp [LLVM-C] Publicly expose getters of MetadataType, TokenType 2017-10-27 11:51:40 +00:00
DataLayout.cpp Support, IR, ADT: Check nullptr after allocation with malloc/realloc or calloc 2017-07-20 01:30:39 +00:00
DebugInfo.cpp Remove redundant includes from lib/IR. 2017-12-13 21:30:52 +00:00
DebugInfoMetadata.cpp Generalize llvm::replaceDbgDeclare and actually support the use-case that 2017-12-08 21:58:18 +00:00
DebugLoc.cpp Remove redundant includes from lib/IR. 2017-12-13 21:30:52 +00:00
DiagnosticHandler.cpp Allow ORE.emit to take a closure to delay building the remark object 2017-09-19 23:00:55 +00:00
DiagnosticInfo.cpp [OptRemark] Move YAML writing to IR 2017-10-04 15:18:11 +00:00
DiagnosticPrinter.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
DIBuilder.cpp Mark all library options as hidden. 2017-12-01 00:53:10 +00:00
Dominators.cpp Reverting [JumpThreading] Preservation of DT and LVI across the pass 2017-12-13 22:01:17 +00:00
Function.cpp [PGO] Fix handling of cold entry count for instrumented PGO 2017-12-18 20:02:43 +00:00
Globals.cpp Represent runtime preemption in the IR. 2017-10-26 15:00:26 +00:00
GVMaterializer.cpp
InlineAsm.cpp [inlineasm] Fix crash when number of matched input constraint operands overflows signed char 2017-10-25 12:51:32 +00:00
Instruction.cpp Remove redundant includes from lib/IR. 2017-12-13 21:30:52 +00:00
Instructions.cpp Fix invalid ptrtoint in InstCombine 2017-10-22 20:28:17 +00:00
IntrinsicInst.cpp Add ‘llvm.experimental.constrained.fma‘ Intrinsic. 2017-08-24 04:18:24 +00:00
IRBuilder.cpp Expand IRBuilder interface for atomic memcpy to require pointer alignments. (NFC) 2017-11-10 19:38:12 +00:00
IRPrintingPasses.cpp [IR] Avoid dangling else warning. NFC. 2017-12-01 18:39:58 +00:00
LegacyPassManager.cpp IR printing improvement for function passes - introducing -print-module-scope 2017-12-01 17:42:46 +00:00
LLVMBuild.txt Move Object format code to lib/BinaryFormat. 2017-06-07 03:48:56 +00:00
LLVMContext.cpp Irreducible loop metadata for more accurate block frequency under PGO. 2017-11-02 22:26:51 +00:00
LLVMContextImpl.cpp This patch fixes https://bugs.llvm.org/show_bug.cgi?id=32352 2017-09-15 20:10:09 +00:00
LLVMContextImpl.h This patch fixes https://bugs.llvm.org/show_bug.cgi?id=32352 2017-09-15 20:10:09 +00:00
Mangler.cpp Move llvm::emitLinkerFlagsForGlobalCOFF() to Mangler. 2017-03-31 04:46:50 +00:00
MDBuilder.cpp [IR] Add MDBuilder helpers for the new TBAA metadata format 2017-12-18 16:49:39 +00:00
Metadata.cpp Move the stripping of invalid debug info from the Verifier to AutoUpgrade. 2017-10-02 18:31:29 +00:00
MetadataImpl.h DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
Module.cpp Normalize constructor call syntax, NFCI. 2017-07-18 08:36:22 +00:00
ModuleSummaryIndex.cpp [cfi] CFI-ICall for ThinLTO. 2017-06-16 00:18:29 +00:00
Operator.cpp [IR] Remove some unneeded includes from Operator.h and fix cpp files that were transitively depending on it. NFC 2017-03-20 05:08:41 +00:00
OptBisect.cpp [IR] Missing changes for r312289 (NFC). 2017-08-31 22:06:09 +00:00
Pass.cpp Reverting r315590; it did not include changes for llvm-tblgen, which is causing link errors for several people. 2017-10-15 14:32:27 +00:00
PassManager.cpp [PM] Introduce an analysis set used to preserve all analyses over 2017-01-15 06:32:49 +00:00
PassRegistry.cpp [Pass] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-09-06 23:05:38 +00:00
ProfileSummary.cpp Reapply r271728 after adding move cobstructor for ProfileSummaryInfo 2016-06-03 22:54:26 +00:00
SafepointIRVerifier.cpp [NFC] Refactor SafepointIRVerifier 2017-12-13 05:32:46 +00:00
Statepoint.cpp [Statepoint] Add helper functions for GCRelocate and GCResult 2017-06-20 20:54:57 +00:00
SymbolTableListTraitsImpl.h ADT: Remove external uses of ilist_iterator, NFC 2016-09-03 01:22:56 +00:00
Type.cpp [IR] Add Type::isIntOrIntVectorTy(unsigned) similar to the existing isIntegerTy(unsigned), but also works for vectors. 2017-07-09 07:04:03 +00:00
TypeFinder.cpp Sort the remaining #include lines in include/... and lib/.... 2017-06-06 11:49:48 +00:00
Use.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
User.cpp Remove redundant includes from lib/IR. 2017-12-13 21:30:52 +00:00
Value.cpp Re-commit "Properly handle multi-element and dynamically sized allocas in getPointerDereferenceableBytes()"" 2017-12-17 21:20:16 +00:00
ValueSymbolTable.cpp [NVPTX] Assign valid global names 2017-12-04 14:19:33 +00:00
ValueTypes.cpp Add MVT::v128i1, NFC 2017-12-14 19:05:21 +00:00
Verifier.cpp [IR] Support the new TBAA metadata format in IR verifier 2017-12-18 18:46:44 +00:00