Bob Wilson cd4f04d6bc Record CodeGen optimization level in the BranchFolding pass so that we can ... use it to control tail merging when there is a tradeoff between performance and code size. When there is only 1 instruction in the common tail, we have been merging. That can be good for code size but is a definite loss for performance. Now we will avoid tail merging in that case when the optimization level is "Aggressive", i.e., "-O3". Radar 7338114. Since the IfConversion pass invokes BranchFolding, it too needs to know the optimization level. Note that I removed the RegisterPass instantiation for IfConversion because it required a default constructor. If someone wants to keep that for some reason, we can add a default constructor with a hard-wired optimization level. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85346 91177308-0d34-0410-b5e6-96231b3b80d8		2009-10-27 23:49:38 +00:00
..
AntiDepBreaker.h	Allow the aggressive anti-dep breaker to process the same region multiple times. This is necessary because new anti-dependencies are exposed when "current" ones are broken.	2009-10-26 22:31:16 +00:00
AsmPrinter.h	Update processDebugLoc() so that it can be used to process debug info before and after printing an instruction.	2009-10-06 02:19:11 +00:00
BinaryObject.h	Move DataTypes.h to include/llvm/System, update all users. This breaks the last	2009-10-26 01:35:46 +00:00
BreakCriticalMachineEdge.h
CallingConvLower.h
DAGISelHeader.h
DwarfWriter.h	Add support to handle debug info attached to an instruction.	2009-10-06 18:37:31 +00:00
ELFRelocation.h	Move DataTypes.h to include/llvm/System, update all users. This breaks the last	2009-10-26 01:35:46 +00:00
FastISel.h	Fix a name in a comment.	2009-10-05 15:23:17 +00:00
FileWriters.h
GCMetadata.h
GCMetadataPrinter.h
GCs.h
GCStrategy.h
IntrinsicLowering.h
JITCodeEmitter.h	Move DataTypes.h to include/llvm/System, update all users. This breaks the last	2009-10-26 01:35:46 +00:00
LatencyPriorityQueue.h
LinkAllAsmWriterComponents.h
LinkAllCodegenComponents.h	Remove simple regalloc. It has bit rotted.	2009-09-17 05:48:07 +00:00
LiveInterval.h	Renamed MachineInstrIndex to LiveIndex.	2009-10-03 04:21:37 +00:00
LiveIntervalAnalysis.h	Indentation.	2009-10-09 00:57:38 +00:00
LiveStackAnalysis.h
LiveVariables.h	Clean up LiveVariables and change how it deals with partial updates and kills. This also eliminate the horrible check which scan forward to the end of the basic block. It should be faster and more accurate.	2009-09-24 02:15:22 +00:00
MachineBasicBlock.h	Revert r82214 completely to fix build.	2009-09-18 09:50:00 +00:00
MachineCodeEmitter.h	Move DataTypes.h to include/llvm/System, update all users. This breaks the last	2009-10-26 01:35:46 +00:00
MachineCodeInfo.h
MachineConstantPool.h
MachineDominators.h
MachineFrameInfo.h	Move DataTypes.h to include/llvm/System, update all users. This breaks the last	2009-10-26 01:35:46 +00:00
MachineFunction.h	Add a splice member function which accepts a range instead of a	2009-10-17 00:28:24 +00:00
MachineFunctionAnalysis.h
MachineFunctionPass.h
MachineInstr.h	Factor out LiveIntervalAnalysis' code to determine whether an instruction	2009-10-09 23:27:56 +00:00
MachineInstrBuilder.h	Improve MachineMemOperand handling.	2009-09-25 20:36:54 +00:00
MachineJumpTableInfo.h
MachineLocation.h
MachineLoopInfo.h	Add getTopBlock and getBottomBlock member functions to MachineLoopInfo.	2009-10-20 04:16:37 +00:00
MachineMemOperand.h	Move MachineMemOperand::getAlignment out of line, to avoid needing	2009-09-25 23:33:20 +00:00
MachineModuleInfo.h	Move DataTypes.h to include/llvm/System, update all users. This breaks the last	2009-10-26 01:35:46 +00:00
MachineModuleInfoImpls.h	move FnStubs/GVSTubs/HiddenGVStub handling out of the X86 asmprinter	2009-09-16 06:25:03 +00:00
MachineOperand.h	Move DataTypes.h to include/llvm/System, update all users. This breaks the last	2009-10-26 01:35:46 +00:00
MachinePassRegistry.h
MachineRegisterInfo.h
MachineRelocation.h	Move DataTypes.h to include/llvm/System, update all users. This breaks the last	2009-10-26 01:35:46 +00:00
MachORelocation.h
ObjectCodeEmitter.h
Passes.h	Record CodeGen optimization level in the BranchFolding pass so that we can	2009-10-27 23:49:38 +00:00
PseudoSourceValue.h	Spill slots cannot alias.	2009-10-18 19:58:47 +00:00
RegAllocRegistry.h
RegisterCoalescer.h
RegisterScavenging.h	Add register-reuse to frame-index register scavenging. When a target uses	2009-10-07 17:12:56 +00:00
RuntimeLibcalls.h
ScheduleDAG.h	Delete bogus semicolons.	2009-10-14 20:39:01 +00:00
ScheduleHazardRecognizer.h
SchedulerRegistry.h
SelectionDAG.h	Introduce new convenience methods for sign extending or	2009-10-13 21:04:12 +00:00
SelectionDAGISel.h
SelectionDAGNodes.h	Move DataTypes.h to include/llvm/System, update all users. This breaks the last	2009-10-26 01:35:46 +00:00
ValueTypes.h	Move DataTypes.h to include/llvm/System, update all users. This breaks the last	2009-10-26 01:35:46 +00:00
ValueTypes.td