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a75059ebaa
llvm-mirror/include/llvm/IR
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Dehao Chen a75059ebaa Encode duplication factor from loop vectorization and loop unrolling to discriminator. 
Summary:
This patch starts the implementation as discuss in the following RFC: http://lists.llvm.org/pipermail/llvm-dev/2016-October/106532.html

When optimization duplicates code that will scale down the execution count of a basic block, we will record the duplication factor as part of discriminator so that the offline process tool can find the duplication factor and collect the accurate execution frequency of the corresponding source code. Two important optimization that fall into this category is loop vectorization and loop unroll. This patch records the duplication factor for these 2 optimizations.

The recording will be guarded by a flag encode-duplication-in-discriminators, which is off by default.

Reviewers: probinson, aprantl, davidxl, hfinkel, echristo

Reviewed By: hfinkel

Subscribers: mehdi_amini, anemet, mzolotukhin, llvm-commits

Differential Revision: https://reviews.llvm.org/D26420

llvm-svn: 294782
2017-02-10 21:09:07 +00:00
..
Argument.h Swift Calling Convention: add swifterror attribute. 2016-04-01 21:41:15 +00:00
AssemblyAnnotationWriter.h Prune trailing whitespaces. 2015-09-22 11:19:03 +00:00
Attributes.h Kill deprecated attribute API 2016-11-06 07:48:46 +00:00
Attributes.td Add writeonly IR attribute 2016-07-04 08:01:29 +00:00
AutoUpgrade.h Fix auto-upgrade of TBAA tags in Bitcode Reader 2016-09-14 22:29:59 +00:00
BasicBlock.h [IR] Add LLVM_READONLY to BasicBlock::getTerminator. 2017-01-22 06:53:07 +00:00
CallingConv.h [X86] Basic additions to support RegCall Calling Convention. 2016-10-13 07:53:43 +00:00
CallSite.h Fix the samplepgo indirect call promotion bug: we should not promote a direct call. 2017-02-06 23:33:15 +00:00
CFG.h [IR] Fix some Clang-tidy modernize-use-default, modernize-use-equal-delete and Include What You Use warnings; other minor fixes (NFC). 2016-11-23 22:25:16 +00:00
CMakeLists.txt IR: Rename the tablegen'd Attributes file to .gen 2016-09-29 03:35:19 +00:00
Comdat.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-06 22:00:57 +00:00
Constant.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-02 22:00:59 +00:00
ConstantFolder.h [IR] Fix some Clang-tidy modernize-use-default, modernize-use-equal-delete and Include What You Use warnings; other minor fixes (NFC). 2016-11-23 22:25:16 +00:00
ConstantRange.h Factor out common parts of LVI and Float2Int into ConstantRange [NFCI] 2016-12-01 20:08:47 +00:00
Constants.h [IR] Grammar police: "intact" is one word. NFC 2017-01-18 00:07:18 +00:00
DataLayout.h Correct PrivateLinkage for COFF 2016-10-13 00:55:24 +00:00
DebugInfo.h [IR] Remove the DIExpression field from DIGlobalVariable. 2016-12-20 02:09:43 +00:00
DebugInfoFlags.def [DebugInfo] Add support for DW_AT_main_subprogram on subprograms 2016-11-28 21:32:19 +00:00
DebugInfoMetadata.h Encode duplication factor from loop vectorization and loop unrolling to discriminator. 2017-02-10 21:09:07 +00:00
DebugLoc.h Do a sweep over move ctors and remove those that are identical to the default. 2016-10-20 12:20:28 +00:00
DerivedTypes.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-05 21:55:02 +00:00
DiagnosticInfo.h Revert: "[Stack Protection] Add diagnostic information for why stack protection was applied to a function" 2017-02-09 15:40:14 +00:00
DiagnosticPrinter.h [IR] Fix some Clang-tidy modernize-use-default, modernize-use-equal-delete and Include What You Use warnings; other minor fixes (NFC). 2016-11-23 22:25:16 +00:00
DIBuilder.h DIBuilder.h: Fix a typo. [-Wdocumentation] 2017-02-02 09:55:22 +00:00
Dominators.h [PM] Introduce an analysis set used to preserve all analyses over 2017-01-15 06:32:49 +00:00
Function.h Encode duplication factor from loop vectorization and loop unrolling to discriminator. 2017-02-10 21:09:07 +00:00
GetElementPtrTypeIterator.h Fix MSVC -Wmicrosoft-enum-value 'enumerator value is not representable' warning 2016-12-06 11:27:19 +00:00
GlobalAlias.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-05 21:55:02 +00:00
GlobalIFunc.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-05 21:55:02 +00:00
GlobalIndirectSymbol.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-05 21:55:02 +00:00
GlobalObject.h Move the section name from GlobalObject to the LLVMContext 2017-01-10 23:23:58 +00:00
GlobalValue.h Fix mingw build by moving the static const data member before the bitfields 2016-12-29 01:14:41 +00:00
GlobalVariable.h [IR] Remove the DIExpression field from DIGlobalVariable. 2016-12-20 02:09:43 +00:00
GVMaterializer.h [IR] Fix some Clang-tidy modernize-use-default, modernize-use-equal-delete and Include What You Use warnings; other minor fixes (NFC). 2016-11-23 22:25:16 +00:00
InlineAsm.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-06 22:00:57 +00:00
InstIterator.h [IR] Fix some Clang-tidy modernize-use-default, modernize-use-equal-delete and Include What You Use warnings; other minor fixes (NFC). 2016-11-23 22:25:16 +00:00
InstrTypes.h These two functions should be const. We often could detect it but this just makes it always true. 2017-01-15 07:40:51 +00:00
Instruction.def [IR] Remove terminatepad 2015-12-14 18:34:23 +00:00
Instruction.h Stop lying about pointers' required alignments. 2016-12-12 23:29:07 +00:00
Instructions.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-05 21:55:02 +00:00
InstVisitor.h [IR/Analysis] Defend against getting slightly wrong template arguments 2017-02-07 03:17:30 +00:00
IntrinsicInst.h [InstCombineCalls] Remove zero length atomic memcpy intrinsics 2017-02-08 14:23:47 +00:00
Intrinsics.h Expandload and Compressstore intrinsics 2016-11-03 03:23:55 +00:00
Intrinsics.td This patch adds a ssa_copy intrinsic, as part of splitting up D29316. 2017-02-07 19:29:25 +00:00
IntrinsicsAArch64.td [AArch64] Add support for lowering bitreverse to the rbit instruction. 2017-01-10 17:20:33 +00:00
IntrinsicsAMDGPU.td AMDGPU: Generalize matching of v_med3_f32 2017-01-31 03:07:46 +00:00
IntrinsicsARM.td [ARM] Remove rbit intrinsics and autoupgrade to generic bitreverse. 2017-01-10 19:23:51 +00:00
IntrinsicsBPF.td
IntrinsicsHexagon.td [Hexagon] Handle operand type differences for A2_tfrpi 2016-05-05 15:29:47 +00:00
IntrinsicsMips.td Split IntrReadArgMem into IntrReadMem and IntrArgMemOnly 2016-04-21 17:48:02 +00:00
IntrinsicsNVVM.td [NVPTX] Add intrinsics to support named barriers. 2017-01-28 16:38:15 +00:00
IntrinsicsPowerPC.td [PPC] cleanup of mayLoad/mayStore flags and memory operands. 2017-01-26 18:59:15 +00:00
IntrinsicsSystemZ.td [SystemZ] Support floating-point control register instructions 2016-12-02 18:21:53 +00:00
IntrinsicsWebAssembly.td [WebAssembly] Update grow_memory's return type. 2017-01-18 01:02:45 +00:00
IntrinsicsX86.td [X86] Clzero intrinsic and its addition under znver1 2017-02-09 04:27:34 +00:00
IntrinsicsXCore.td
IRBuilder.h Apply clang-tidy's performance-unnecessary-value-param to LLVM. 2017-01-13 14:39:03 +00:00
IRPrintingPasses.h [PM] Re-instate r279227 and r279228 with a fix to the way the templating 2016-08-19 18:36:06 +00:00
LegacyPassManager.h Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
LegacyPassManagers.h Use StringRef in Pass/PassManager APIs (NFC) 2016-10-01 02:56:57 +00:00
LegacyPassNameParser.h Use StringRef in Pass/PassManager APIs (NFC) 2016-10-01 02:56:57 +00:00
LLVMContext.h IR, X86: Understand !absolute_symbol metadata on global variables. 2016-12-08 19:01:00 +00:00
Mangler.h Remove the default constructor and count variable from the Mangler since 2016-09-29 02:03:50 +00:00
MDBuilder.h Use profile info to set function section prefix to group hot/cold functions. 2016-10-18 20:42:47 +00:00
Metadata.def [IR] Remove the DIExpression field from DIGlobalVariable. 2016-12-20 02:09:43 +00:00
Metadata.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-02 22:00:59 +00:00
Module.h Fix some bad indentation that I or another introduced somehow. 2016-12-26 01:20:59 +00:00
ModuleSlotTracker.h IR: Avoid mallocs in constructor of ModuleSlotTracker 2016-04-20 19:05:59 +00:00
ModuleSummaryIndex.h Revert "[ThinLTO] Add an auto-hide feature" 2017-02-03 07:41:43 +00:00
ModuleSummaryIndexYAML.h Revert "[ThinLTO] Add an auto-hide feature" 2017-02-03 07:41:43 +00:00
NoFolder.h [IR] Fix some Clang-tidy modernize-use-default, modernize-use-equal-delete and Include What You Use warnings; other minor fixes (NFC). 2016-11-23 22:25:16 +00:00
OperandTraits.h Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
Operator.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-06 22:00:57 +00:00
OptBisect.h Re-commit optimization bisect support (r267022) without new pass manager support. 2016-04-22 22:06:11 +00:00
PassManager.h Revert r293017 and fix the actual underlying issue. 2017-02-07 01:50:48 +00:00
PassManagerInternal.h [PM] Introduce the facilities for registering cross-IR-unit dependencies 2016-12-27 08:40:39 +00:00
PatternMatch.h SimplifyLibCalls: Replace fabs libcalls with intrinsics 2017-01-17 00:10:40 +00:00
PredIteratorCache.h Revamp PredIteratorCache interface to be cleaner. 2015-04-21 21:11:50 +00:00
ProfileSummary.h Apply clang-tidy's misc-move-constructor-init throughout LLVM. 2016-05-27 14:27:24 +00:00
Statepoint.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-06 22:00:57 +00:00
SymbolTableListTraits.h ADT: Split out iplist_impl from iplist, NFC 2016-09-03 02:07:45 +00:00
TrackingMDRef.h Remove some unneeded headers and replace some headers with forward class declarations (NFC) 2016-04-16 07:51:28 +00:00
Type.h Replace APFloatBase static fltSemantics data members with getter functions 2016-12-14 11:57:17 +00:00
TypeBuilder.h Update comment. NFC. 2015-04-21 21:15:35 +00:00
TypeFinder.h Fix ThinLTO crash with debug info 2016-09-03 21:12:33 +00:00
Use.h Stop lying about pointers' required alignments. 2016-12-12 23:29:07 +00:00
UseListOrder.h Do a sweep over move ctors and remove those that are identical to the default. 2016-10-20 12:20:28 +00:00
User.h [IR] Adding const_value_op_iterator for IR/User.h 2017-01-09 14:00:57 +00:00
Value.def [GCC] Attribute ifunc support in llvm 2016-04-07 12:32:19 +00:00
Value.h [IR] Don't call assertModuleIsMaterialized in release builds 2017-01-13 06:26:18 +00:00
ValueHandle.h [PM] Introduce a PoisoningVH as a (more expensive) alternative to 2017-01-24 12:34:47 +00:00
ValueMap.h [IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC). 2016-12-06 22:00:57 +00:00
ValueSymbolTable.h Remove some unneeded headers and replace some headers with forward class declarations (NFC) 2016-04-16 07:51:28 +00:00
Verifier.h [TBAAVerifier] Make things const-consistent; NFC 2016-12-29 15:47:01 +00:00