Andrew Trick c4c5a1d526 Allow MachineCSE to coalesce trivial subregister copies the same way that it coalesces normal copies. ... Without this, MachineCSE is powerless to handle redundant operations with truncated source operands. This required fixing the 2-addr pass to handle tied subregisters. It isn't clear what combinations of subregisters can legally be tied, but the simple case of truncated source operands is now safely handled: %vreg11<def> = COPY %vreg1:sub_32bit; GR32:%vreg11 GR64:%vreg1 %vreg12<def> = COPY %vreg2:sub_32bit; GR32:%vreg12 GR64:%vreg2 %vreg13<def,tied1> = ADD32rr %vreg11<tied0>, %vreg12<kill>, %EFLAGS<imp-def> Test case: cse-add-with-overflow.ll. This exposed an existing bug in PPCInstrInfo::commuteInstruction. Thanks to Rafael for the test case: PowerPC/crash.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197465 91177308-0d34-0410-b5e6-96231b3b80d8		2013-12-17 04:50:45 +00:00
..
InstPrinter
MCTargetDesc	Don't set unused variable.	2013-12-11 20:40:57 +00:00
TargetInfo	Prune redundant dependencies in LLVMBuild.txt.	2013-12-11 00:30:57 +00:00
AMDGPU.h	R600: Register AMDGPUCFGStructurizer pass	2013-12-11 17:51:47 +00:00
AMDGPU.td
AMDGPUAsmPrinter.cpp	Use llvm_unreachable instead of assert(0)	2013-12-10 21:37:42 +00:00
AMDGPUAsmPrinter.h
AMDGPUCallingConv.td
AMDGPUConvertToISA.cpp
AMDGPUFrameLowering.cpp
AMDGPUFrameLowering.h
AMDGPUInstrInfo.cpp	Use llvm_unreachable instead of assert(0)	2013-12-10 21:37:42 +00:00
AMDGPUInstrInfo.h
AMDGPUInstrInfo.td
AMDGPUInstructions.td
AMDGPUIntrinsics.td
AMDGPUISelDAGToDAG.cpp
AMDGPUISelLowering.cpp	Don't manually calculate size in bytes	2013-12-14 18:21:59 +00:00
AMDGPUISelLowering.h
AMDGPUMachineFunction.cpp
AMDGPUMachineFunction.h
AMDGPUMCInstLower.cpp
AMDGPUMCInstLower.h
AMDGPURegisterInfo.cpp	Use llvm_unreachable instead of assert(0)	2013-12-10 21:37:42 +00:00
AMDGPURegisterInfo.h
AMDGPURegisterInfo.td
AMDGPUSubtarget.cpp	Turn AMDGPUSubtarget::getDataLayout into a static function.	2013-12-14 06:13:44 +00:00
AMDGPUSubtarget.h	Turn AMDGPUSubtarget::getDataLayout into a static function.	2013-12-14 06:13:44 +00:00
AMDGPUTargetMachine.cpp	One last cleanup of LLVM's DataLayout strings.	2013-12-16 19:31:14 +00:00
AMDGPUTargetMachine.h
AMDGPUTargetTransformInfo.cpp
AMDILBase.td
AMDILCFGStructurizer.cpp	R600: Register AMDGPUCFGStructurizer pass	2013-12-11 17:51:47 +00:00
AMDILInstrInfo.td
AMDILIntrinsicInfo.cpp
AMDILIntrinsicInfo.h
AMDILIntrinsics.td
AMDILISelLowering.cpp
AMDILRegisterInfo.td
CMakeLists.txt
LLVMBuild.txt	Add proper dependencies to LLVMBuild.txt in llvm/lib.	2013-12-10 05:39:34 +00:00
Makefile
Processors.td	R600: Re-format Processors.td	2013-12-11 17:51:51 +00:00
R600ClauseMergePass.cpp
R600ControlFlowFinalizer.cpp
R600Defines.h
R600EmitClauseMarkers.cpp	R600: Register R600EmitClauseMarkers pass	2013-12-11 17:51:41 +00:00
R600ExpandSpecialInstrs.cpp	R600: Fix input modifiers lost for Cayman	2013-12-10 14:43:27 +00:00
R600InstrFormats.td
R600InstrInfo.cpp
R600InstrInfo.h
R600Instructions.td
R600Intrinsics.td
R600ISelLowering.cpp	Use llvm_unreachable instead of assert(0)	2013-12-10 21:37:42 +00:00
R600ISelLowering.h
R600MachineFunctionInfo.cpp
R600MachineFunctionInfo.h
R600MachineScheduler.cpp
R600MachineScheduler.h
R600OptimizeVectorRegisters.cpp	Use llvm_unreachable instead of assert(0)	2013-12-10 21:37:42 +00:00
R600Packetizer.cpp
R600RegisterInfo.cpp
R600RegisterInfo.h
R600RegisterInfo.td
R600Schedule.td
R600TextureIntrinsicsReplacer.cpp
SIAnnotateControlFlow.cpp	Use llvm_unreachable instead of assert(0)	2013-12-10 21:37:42 +00:00
SIDefines.h
SIFixSGPRCopies.cpp
SIInsertWaits.cpp
SIInstrFormats.td
SIInstrInfo.cpp	Allow MachineCSE to coalesce trivial subregister copies the same way that it coalesces normal copies.	2013-12-17 04:50:45 +00:00
SIInstrInfo.h	Use llvm_unreachable instead of assert(0)	2013-12-10 21:37:42 +00:00
SIInstrInfo.td
SIInstructions.td	Fix typo in instruction name.	2013-12-16 20:58:33 +00:00
SIIntrinsics.td
SIISelLowering.cpp
SIISelLowering.h
SILowerControlFlow.cpp	Use llvm_unreachable instead of assert(0)	2013-12-10 21:37:42 +00:00
SIMachineFunctionInfo.cpp
SIMachineFunctionInfo.h
SIRegisterInfo.cpp
SIRegisterInfo.h
SIRegisterInfo.td
SISchedule.td
SITypeRewriter.cpp