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llvm-project/llvm/lib/CodeGen/SelectionDAG
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Justin Bogner 61ba2e3996 InstrProf: An intrinsic and lowering for instrumentation based profiling 
Introduce the ``llvm.instrprof_increment`` intrinsic and the
``-instrprof`` pass. These provide the infrastructure for writing
counters for profiling, as in clang's ``-fprofile-instr-generate``.

The implementation of the instrprof pass is ported directly out of the
CodeGenPGO classes in clang, and with the followup in clang that rips
that code out to use these new intrinsics this ends up being NFC.

Doing the instrumentation this way opens some doors in terms of
improving the counter performance. For example, this will make it
simple to experiment with alternate lowering strategies, and allows us
to try handling profiling specially in some optimizations if we want
to.

Finally, this drastically simplifies the frontend and puts all of the
lowering logic in one place.

llvm-svn: 223672
 		2014-12-08 18:02:35 +00:00
..
CMakeLists.txt [Statepoints 3/4] Statepoint infrastructure for garbage collection: SelectionDAGBuilder 2014-12-02 18:50:36 +00:00
DAGCombiner.cpp [InstCombine] Minor optimization for bswap with binary ops 2014-12-04 09:44:01 +00:00
FastISel.cpp Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool> 2014-11-19 07:49:26 +00:00
FunctionLoweringInfo.cpp [Statepoints 3/4] Statepoint infrastructure for garbage collection: SelectionDAGBuilder 2014-12-02 18:50:36 +00:00
InstrEmitter.cpp Remove the uses of getSubtargetImpl from InstrEmitter and remove 2014-10-09 01:35:29 +00:00
InstrEmitter.h Remove the uses of getSubtargetImpl from InstrEmitter and remove 2014-10-09 01:35:29 +00:00
LLVMBuild.txt
…
LegalizeDAG.cpp Don't repeat class/function/variable names in comments. NFC. 2014-11-21 18:58:38 +00:00
LegalizeFloatTypes.cpp Add minnum / maxnum codegen 2014-10-21 23:01:01 +00:00
LegalizeIntegerTypes.cpp Masked Load / Store Intrinsics - the CodeGen part. 2014-12-04 09:40:44 +00:00
LegalizeTypes.cpp [PowerPC] Implement readcyclecounter for PPC32 2014-12-02 22:01:00 +00:00
LegalizeTypes.h Masked Load / Store Intrinsics - the CodeGen part. 2014-12-04 09:40:44 +00:00
LegalizeTypesGeneric.cpp AA metadata refactoring (introduce AAMDNodes) 2014-07-24 12:16:19 +00:00
LegalizeVectorOps.cpp Add minnum / maxnum codegen 2014-10-21 23:01:01 +00:00
LegalizeVectorTypes.cpp Masked Load / Store Intrinsics - the CodeGen part. 2014-12-04 09:40:44 +00:00
Makefile
…
ResourcePriorityQueue.cpp Remove unused argument to CreateTargetScheduleState and change 2014-10-09 01:59:35 +00:00
SDNodeDbgValue.h constify the getters in SDNodeDbgValue. 2014-10-13 20:43:47 +00:00
ScheduleDAGFast.cpp Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool> 2014-11-19 07:49:26 +00:00
ScheduleDAGRRList.cpp Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool> 2014-11-19 07:49:26 +00:00
ScheduleDAGSDNodes.cpp Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool> 2014-11-19 07:49:26 +00:00
ScheduleDAGSDNodes.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
ScheduleDAGVLIW.cpp Remove more calls to getSubtargetImpl from the schedulers and 2014-10-09 06:28:06 +00:00
SelectionDAG.cpp Masked Load / Store Intrinsics - the CodeGen part. 2014-12-04 09:40:44 +00:00
SelectionDAGBuilder.cpp InstrProf: An intrinsic and lowering for instrumentation based profiling 2014-12-08 18:02:35 +00:00
SelectionDAGBuilder.h Masked Load / Store Intrinsics - the CodeGen part. 2014-12-04 09:40:44 +00:00
SelectionDAGDumper.cpp Masked Load / Store Intrinsics - the CodeGen part. 2014-12-04 09:40:44 +00:00
SelectionDAGISel.cpp Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool> 2014-11-19 07:49:26 +00:00
SelectionDAGPrinter.cpp Revert "Introduce a string_ostream string builder facilty" 2014-06-26 22:52:05 +00:00
StatepointLowering.cpp Restructure some assertion checking based on post commit feedback by Aaron and Tom. 2014-12-02 21:01:48 +00:00
StatepointLowering.h [Statepoints 3/4] Statepoint infrastructure for garbage collection: SelectionDAGBuilder 2014-12-02 18:50:36 +00:00
TargetLowering.cpp We can get the TLOF from the TargetMachine - so constructor no longer requires TargetLoweringObjectFile to be passed. 2014-11-13 21:29:21 +00:00
TargetSelectionDAGInfo.cpp Have TargetSelectionDAGInfo take a DataLayout initializer rather than 2014-06-06 19:04:48 +00:00