Adam Nemet cb89dd6834 [OptRemark,LDist] RFC: Add hotness attribute ... Summary: This is the first set of changes implementing the RFC from http://thread.gmane.org/gmane.comp.compilers.llvm.devel/98334 This is a cross-sectional patch; rather than implementing the hotness attribute for all optimization remarks and all passes in a patch set, it implements it for the 'missed-optimization' remark for Loop Distribution. My goal is to shake out the design issues before scaling it up to other types and passes. Hotness is computed as an integer as the multiplication of the block frequency with the function entry count. It's only printed in opt currently since clang prints the diagnostic fields directly. E.g.: remark: /tmp/t.c:3:3: loop not distributed: use -Rpass-analysis=loop-distribute for more info (hotness: 300) A new API added is similar to emitOptimizationRemarkMissed. The difference is that it additionally takes a code region that the diagnostic corresponds to. From this, hotness is computed using BFI. The new API is exposed via an analysis pass so that it can be made dependent on LazyBFI. (Thanks to Hal for the analysis pass idea.) This feature can all be enabled by setDiagnosticHotnessRequested in the LLVM context. If this is off, LazyBFI is not calculated (D22141) so there should be no overhead. A new command-line option is added to turn this on in opt. My plan is to switch all user of emitOptimizationRemark* to use this module instead. Reviewers: hfinkel Subscribers: rcox2, mzolotukhin, llvm-commits Differential Revision: http://reviews.llvm.org/D21771 llvm-svn: 275583		2016-07-15 17:23:20 +00:00
..
AsmWriter.cpp	[codeview] Add DISubprogram::ThisAdjustment	2016-07-01 02:41:21 +00:00
AttributeImpl.h	Apply clang-tidy's modernize-loop-convert to most of lib/IR.	2016-06-26 14:10:56 +00:00
Attributes.cpp	Add getReturnedArgOperand to Call/InvokeInst, CallSite	2016-07-10 23:01:32 +00:00
AttributesCompatFunc.td
AutoUpgrade.cpp	[AVX512] Remove masked logic op intrinsics and autoupgrade them to native IR.	2016-07-12 05:27:53 +00:00
BasicBlock.cpp	Apply clang-tidy's modernize-loop-convert to most of lib/IR.	2016-06-26 14:10:56 +00:00
CMakeLists.txt	Move ProfileSummary to IR.	2016-05-19 21:07:12 +00:00
Comdat.cpp	[NFC] Remove some dead code:	2016-05-11 16:38:40 +00:00
ConstantFold.cpp	[ConstantFold] Don't incorrectly infer inbounds on array GEP	2016-07-13 03:24:41 +00:00
ConstantFold.h
ConstantRange.cpp	fix formatting, typo; NFC	2016-06-19 17:20:27 +00:00
Constants.cpp	Apply clang-tidy's modernize-loop-convert to most of lib/IR.	2016-06-26 14:10:56 +00:00
ConstantsContext.h
Core.cpp	Apply clang-tidy's modernize-loop-convert to most of lib/IR.	2016-06-26 14:10:56 +00:00
DataLayout.cpp	[IR] Make getIndexedOffsetInType return a signed result	2016-07-13 03:42:38 +00:00
DebugInfo.cpp	StripDebugInfo: uses isa<DbgInfoIntrinsic> instead of matching against llvm.dbg.* (NFC)	2016-05-14 04:58:35 +00:00
DebugInfoMetadata.cpp	[codeview] Add DISubprogram::ThisAdjustment	2016-07-01 02:41:21 +00:00
DebugLoc.cpp
DiagnosticInfo.cpp	[OptRemark,LDist] RFC: Add hotness attribute	2016-07-15 17:23:20 +00:00
DiagnosticPrinter.cpp
DIBuilder.cpp	[DIBuilder] Remove dead code. NFC.	2016-07-02 13:18:38 +00:00
Dominators.cpp	[PM] Remove support for omitting the AnalysisManager argument to new	2016-06-17 00:11:01 +00:00
Function.cpp	IR: Sort generic intrinsics before target specific ones	2016-07-15 16:31:37 +00:00
GCOV.cpp
Globals.cpp	[IR] [DAE] Copy comdats during DAE, and don't copy comdats in GlobalObject::copyAttributesFrom.	2016-06-15 23:20:15 +00:00
GVMaterializer.cpp
InlineAsm.cpp	[InlineAsm] Avoid creating extra string instances in ConstraintInfo::Parse()	2016-05-23 13:58:04 +00:00
Instruction.cpp	[IR] andIRFlags and copyIRFlags needs to handle GEP	2016-07-15 05:02:31 +00:00
Instructions.cpp	Add getReturnedArgOperand to Call/InvokeInst, CallSite	2016-07-10 23:01:32 +00:00
IntrinsicInst.cpp	[NFC] Remove some dead code:	2016-05-11 16:38:40 +00:00
IRBuilder.cpp	Support arbitrary addrspace pointers in masked load/store intrinsics	2016-06-28 18:27:25 +00:00
IRPrintingPasses.cpp	[PM] Remove support for omitting the AnalysisManager argument to new	2016-06-17 00:11:01 +00:00
LegacyPassManager.cpp	Remove doInitialization() and doFinalization() member declarations without definitions.	2016-04-28 19:21:30 +00:00
LLVMBuild.txt
LLVMContext.cpp	[OptRemark,LDist] RFC: Add hotness attribute	2016-07-15 17:23:20 +00:00
LLVMContextImpl.cpp	[OptRemark,LDist] RFC: Add hotness attribute	2016-07-15 17:23:20 +00:00
LLVMContextImpl.h	[OptRemark,LDist] RFC: Add hotness attribute	2016-07-15 17:23:20 +00:00
Mangler.cpp
MDBuilder.cpp	Fix the assertion failure caused by http://reviews.llvm.org/D22118	2016-07-11 17:36:02 +00:00
Metadata.cpp	Fix the assertion failure caused by http://reviews.llvm.org/D22118	2016-07-11 17:36:02 +00:00
MetadataImpl.h
Module.cpp	Remove interface to get/set MaxFunctionCount	2016-06-20 21:36:38 +00:00
ModuleSummaryIndex.cpp
Operator.cpp
OptBisect.cpp
Pass.cpp
PassManager.cpp	[PM] Run clang-format over various parts of the new pass manager code	2016-06-17 07:15:29 +00:00
PassRegistry.cpp
ProfileSummary.cpp	Reapply r271728 after adding move cobstructor for ProfileSummaryInfo	2016-06-03 22:54:26 +00:00
Statepoint.cpp
SymbolTableListTraitsImpl.h
Type.cpp	fix documentation comments; NFC	2016-06-02 20:37:52 +00:00
TypeFinder.cpp	Apply clang-tidy's modernize-loop-convert to most of lib/IR.	2016-06-26 14:10:56 +00:00
Use.cpp
User.cpp
Value.cpp	BasicAA should look through functions with returned arguments	2016-07-11 01:32:20 +00:00
ValueSymbolTable.cpp	Apply clang-tidy's modernize-loop-convert to most of lib/IR.	2016-06-26 14:10:56 +00:00
ValueTypes.cpp
Verifier.cpp	Add writeonly IR attribute	2016-07-04 08:01:29 +00:00