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llvm/lib/Target/Hexagon
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Akira Hatanaka 55c0268714 Reduce the size of MCRelaxableFragment. 
MCRelaxableFragment previously kept a copy of MCSubtargetInfo and
MCInst to enable re-encoding the MCInst later during relaxation. A copy
of MCSubtargetInfo (instead of a reference or pointer) was needed
because the feature bits could be modified by the parser.

This commit replaces the MCSubtargetInfo copy in MCRelaxableFragment
with a constant reference to MCSubtargetInfo. The copies of
MCSubtargetInfo are kept in MCContext, and the target parsers are now
responsible for asking MCContext to provide a copy whenever the feature
bits of MCSubtargetInfo have to be toggled.
 
With this patch, I saw a 4% reduction in peak memory usage when I
compiled verify-uselistorder.lto.bc using llc.

rdar://problem/21736951

Differential Revision: http://reviews.llvm.org/D14346


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253127 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-14 06:35:56 +00:00
..
AsmParser Reduce the size of MCRelaxableFragment. 2015-11-14 06:35:56 +00:00
Disassembler [Hexagon] Factoring bundle creation in to a utility function. 2015-11-13 17:42:46 +00:00
MCTargetDesc [Hexagon] Fixing memory leak during relaxation by allocating MCInst in MCContext. 2015-11-13 21:45:50 +00:00
TargetInfo
BitTracker.cpp ADT: Remove last implicit ilist iterator conversions, NFC 2015-11-07 00:01:16 +00:00
BitTracker.h
CMakeLists.txt [Hexagon] Enabling ASM parsing on Hexagon backend and adding instruction parsing tests. General updating of the code emission. 2015-11-09 04:07:48 +00:00
Hexagon.h
Hexagon.td [Hexagon] Enabling ASM parsing on Hexagon backend and adding instruction parsing tests. General updating of the code emission. 2015-11-09 04:07:48 +00:00
HexagonAsmPrinter.cpp [Hexagon] Factoring bundle creation in to a utility function. 2015-11-13 17:42:46 +00:00
HexagonAsmPrinter.h
HexagonBitSimplify.cpp [Hexagon] Bit-based instruction simplification 2015-10-20 22:57:13 +00:00
HexagonBitTracker.cpp [Hexagon] Capture aggregate variables by reference, not value 2015-10-20 19:33:46 +00:00
HexagonBitTracker.h
HexagonCallingConv.td
HexagonCFGOptimizer.cpp Hexagon: Remove implicit ilist iterator conversions, NFC 2015-10-20 00:46:39 +00:00
HexagonCommonGEP.cpp Hexagon: Remove implicit ilist iterator conversions, NFC 2015-10-20 00:46:39 +00:00
HexagonCopyToCombine.cpp
HexagonEarlyIfConv.cpp Hexagon: Remove implicit ilist iterator conversions, NFC 2015-10-20 00:46:39 +00:00
HexagonExpandCondsets.cpp
HexagonExpandPredSpillCode.cpp Hexagon: Remove implicit ilist iterator conversions, NFC 2015-10-20 00:46:39 +00:00
HexagonFixupHwLoops.cpp
HexagonFrameLowering.cpp Hexagon: Remove implicit ilist iterator conversions, NFC 2015-10-20 00:46:39 +00:00
HexagonFrameLowering.h Add missing override noticed by Clang's -Winconsistent-missing-override. 2015-10-19 18:41:23 +00:00
HexagonGenExtract.cpp Hexagon: Remove implicit ilist iterator conversions, NFC 2015-10-20 00:46:39 +00:00
HexagonGenInsert.cpp
HexagonGenMux.cpp
HexagonGenPredicate.cpp
HexagonHardwareLoops.cpp Hexagon: Remove implicit ilist iterator conversions, NFC 2015-10-20 00:46:39 +00:00
HexagonInstrAlias.td [Hexagon] Adding instruction aliases and tests. 2015-11-10 01:58:26 +00:00
HexagonInstrEnc.td [Hexagon] Adding skeleton of HVX extension instructions. 2015-10-17 01:33:04 +00:00
HexagonInstrFormats.td [Hexagon] Remove the remnants of isConstExtProfitable 2015-10-20 19:04:53 +00:00
HexagonInstrFormatsV4.td
HexagonInstrFormatsV60.td [Hexagon] Adding skeleton of HVX extension instructions. 2015-10-17 01:33:04 +00:00
HexagonInstrInfo.cpp [Hexagon] Change Based->Base in getBasedWithImmOffset 2015-10-20 19:21:05 +00:00
HexagonInstrInfo.h Pass BranchProbability/BlockMass by value instead of const& as they are small. NFC. 2015-09-10 23:10:42 +00:00
HexagonInstrInfo.td [Hexagon] Adding instruction aliases and tests. 2015-11-10 01:58:26 +00:00
HexagonInstrInfoV3.td
HexagonInstrInfoV4.td [Hexagon] Fixing store instructions and reenabling a few more tests. 2015-11-10 00:22:00 +00:00
HexagonInstrInfoV5.td
HexagonInstrInfoV60.td [Hexagon] Adding skeleton of HVX extension instructions. 2015-10-17 01:33:04 +00:00
HexagonInstrInfoVector.td
HexagonIntrinsics.td [Hexagon] Remove the remnants of isConstExtProfitable 2015-10-20 19:04:53 +00:00
HexagonIntrinsicsDerived.td
HexagonIntrinsicsV3.td
HexagonIntrinsicsV4.td
HexagonIntrinsicsV5.td
HexagonISelDAGToDAG.cpp [Hexagon] Remove the remnants of isConstExtProfitable 2015-10-20 19:04:53 +00:00
HexagonISelLowering.cpp [WinEH] Update exception pointer registers 2015-11-07 01:11:31 +00:00
HexagonISelLowering.h [WinEH] Update exception pointer registers 2015-11-07 01:11:31 +00:00
HexagonIsetDx.td
HexagonMachineFunctionInfo.cpp
HexagonMachineFunctionInfo.h
HexagonMachineScheduler.cpp Make MachineScheduler debug output less confusing. 2015-09-18 18:52:20 +00:00
HexagonMachineScheduler.h
HexagonMCInstLower.cpp [Hexagon] Enabling ASM parsing on Hexagon backend and adding instruction parsing tests. General updating of the code emission. 2015-11-09 04:07:48 +00:00
HexagonNewValueJump.cpp Hexagon: Remove implicit ilist iterator conversions, NFC 2015-10-20 00:46:39 +00:00
HexagonOperands.td [Hexagon] Enabling ASM parsing on Hexagon backend and adding instruction parsing tests. General updating of the code emission. 2015-11-09 04:07:48 +00:00
HexagonOptimizeSZextends.cpp Hexagon: Remove implicit ilist iterator conversions, NFC 2015-10-20 00:46:39 +00:00
HexagonPeephole.cpp [Hexagon] Use symbolic name for subregister instead of hardcoded number 2015-10-20 19:26:36 +00:00
HexagonRegisterInfo.cpp [Hexagon] Fix debug information for local objects 2015-10-19 18:30:27 +00:00
HexagonRegisterInfo.h
HexagonRegisterInfo.td [Hexagon] Enabling ASM parsing on Hexagon backend and adding instruction parsing tests. General updating of the code emission. 2015-11-09 04:07:48 +00:00
HexagonSchedule.td [Hexagon] Adding skeleton of HVX extension instructions. 2015-10-17 01:33:04 +00:00
HexagonScheduleV4.td [Hexagon] Adding skeleton of HVX extension instructions. 2015-10-17 01:33:04 +00:00
HexagonScheduleV55.td [Hexagon] Adding skeleton of HVX extension instructions. 2015-10-17 01:33:04 +00:00
HexagonScheduleV60.td [Hexagon] Adding skeleton of HVX extension instructions. 2015-10-17 01:33:04 +00:00
HexagonSelectCCInfo.td
HexagonSelectionDAGInfo.cpp
HexagonSelectionDAGInfo.h
HexagonSplitConst32AndConst64.cpp Hexagon: Remove implicit ilist iterator conversions, NFC 2015-10-20 00:46:39 +00:00
HexagonSplitDouble.cpp [Hexagon] Split double registers 2015-10-16 20:38:54 +00:00
HexagonStoreWidening.cpp [Hexagon] Merge adjacent stores 2015-10-16 19:43:56 +00:00
HexagonSubtarget.cpp Revert r247692: Replace Triple with a new TargetTuple in MCTargetDesc/* and related. NFC. 2015-09-15 16:17:27 +00:00
HexagonSubtarget.h [Hexagon] Adding skeleton of HVX extension instructions. 2015-10-17 01:33:04 +00:00
HexagonTargetMachine.cpp [Hexagon] Bit-based instruction simplification 2015-10-20 22:57:13 +00:00
HexagonTargetMachine.h
HexagonTargetObjectFile.cpp
HexagonTargetObjectFile.h
HexagonTargetStreamer.h
HexagonTargetTransformInfo.cpp
HexagonTargetTransformInfo.h constify the Function parameter to the TTI creation callback and 2015-09-16 23:38:13 +00:00
HexagonVLIWPacketizer.cpp Fix build problme introduced in r251883 2015-11-03 02:19:07 +00:00
LLVMBuild.txt [Hexagon] Adding LLVMBuild.txt reference to HexagonAsmParser. 2015-11-09 04:31:02 +00:00
Makefile [Hexagon] Removing extra gen line. 2015-11-09 05:31:39 +00:00