Diego Novillo 4b2b2da9c7 Extend and simplify the sample profile input file. ... 1- Use the line_iterator class to read profile files. 2- Allow comments in profile file. Lines starting with '#' are completely ignored while reading the profile. 3- Add parsing support for discriminators and indirect call samples. Our external profiler can emit more profile information that we are currently not handling. This patch does not add new functionality to support this information, but it allows profile files to provide it. I will add actual support later on (for at least one of these features, I need support for DWARF discriminators in Clang). A sample line may contain the following additional information: Discriminator. This is used if the sampled program was compiled with DWARF discriminator support (http://wiki.dwarfstd.org/index.php?title=Path_Discriminators). This is currently only emitted by GCC and we just ignore it. Potential call targets and samples. If present, this line contains a call instruction. This models both direct and indirect calls. Each called target is listed together with the number of samples. For example, 130: 7 foo:3 bar:2 baz:7 The above means that at relative line offset 130 there is a call instruction that calls one of foo(), bar() and baz(). With baz() being the relatively more frequent call target. Differential Revision: http://llvm-reviews.chandlerc.com/D2355 4- Simplify format of profile input file. This implements earlier suggestions to simplify the format of the sample profile file. The symbol table is not necessary and function profiles do not need to know the number of samples in advance. Differential Revision: http://llvm-reviews.chandlerc.com/D2419 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198973 91177308-0d34-0410-b5e6-96231b3b80d8		2014-01-10 23:23:51 +00:00
..
ADCE.cpp
CMakeLists.txt	Add a Scalarizer pass.	2013-11-22 16:58:05 +00:00
CodeGenPrepare.cpp	Put the functionality for printing a value to a raw_ostream as an	2014-01-09 02:29:41 +00:00
ConstantProp.cpp
CorrelatedValuePropagation.cpp
DCE.cpp
DeadStoreElimination.cpp
EarlyCSE.cpp	Change std::deque => std::vector. No functionality change.	2013-12-05 18:42:12 +00:00
FlattenCFGPass.cpp	Factor FlattenCFG out from SimplifyCFG	2013-08-06 02:43:45 +00:00
GlobalMerge.cpp
GVN.cpp	Put the functionality for printing a value to a raw_ostream as an	2014-01-09 02:29:41 +00:00
IndVarSimplify.cpp	Reapply r198654 "indvars: sink truncates outside the loop."	2014-01-07 06:59:12 +00:00
JumpThreading.cpp	Don't eliminate a partially redundant load if it's in a landing pad.	2013-10-21 04:09:17 +00:00
LICM.cpp
LLVMBuild.txt	Add proper dependencies to LLVMBuild.txt in llvm/lib.	2013-12-10 05:39:34 +00:00
LoopDeletion.cpp
LoopIdiomRecognize.cpp	Don't #include heavy Dominators.h file in LoopInfo.h. This change reduces	2013-12-07 21:20:17 +00:00
LoopInstSimplify.cpp	Re-sort all of the includes with ./utils/sort_includes.py so that	2014-01-07 11:48:04 +00:00
LoopRerollPass.cpp	Re-sort all of the includes with ./utils/sort_includes.py so that	2014-01-07 11:48:04 +00:00
LoopRotation.cpp	Don't #include heavy Dominators.h file in LoopInfo.h. This change reduces	2013-12-07 21:20:17 +00:00
LoopStrengthReduce.cpp	Put the functionality for printing a value to a raw_ostream as an	2014-01-09 02:29:41 +00:00
LoopUnrollPass.cpp	Don't #include heavy Dominators.h file in LoopInfo.h. This change reduces	2013-12-07 21:20:17 +00:00
LoopUnswitch.cpp	Remove dead code from LoopUnswitch	2013-11-08 19:58:21 +00:00
LowerAtomic.cpp
Makefile
MemCpyOptimizer.cpp	MemCpyOptimizer: Use max legal int size instead of pointer size	2013-09-16 22:43:16 +00:00
PartiallyInlineLibCalls.cpp	Turn MipsOptimizeMathLibCalls into a target-independent scalar transform	2013-08-23 10:27:02 +00:00
Reassociate.cpp	Put the functionality for printing a value to a raw_ostream as an	2014-01-09 02:29:41 +00:00
Reg2Mem.cpp
SampleProfile.cpp	Extend and simplify the sample profile input file.	2014-01-10 23:23:51 +00:00
Scalar.cpp	Add a Scalarizer pass.	2013-11-22 16:58:05 +00:00
Scalarizer.cpp	Fix Scalarizer insertion point when replacing PHIs with insertelements	2013-12-23 14:51:56 +00:00
ScalarReplAggregates.cpp	Correct word hyphenations	2013-12-05 05:44:44 +00:00
SCCP.cpp
SimplifyCFGPass.cpp	Reapply r188119 now that the bug it exposed is fixed.	2013-08-12 22:38:43 +00:00
Sink.cpp	Put the functionality for printing a value to a raw_ostream as an	2014-01-09 02:29:41 +00:00
SROA.cpp	Add missed cleanup from r198456	2014-01-04 22:47:48 +00:00
StructurizeCFG.cpp	StructurizeCFG: Fix verification failure with some loops.	2013-11-22 19:24:39 +00:00
TailRecursionElimination.cpp	TRE: Move class into anonymous namespace.	2013-07-24 16:12:08 +00:00