Chris Lattner 5d056952ba optimize single MBB loops better. In particular, produce: ... LBB1_57: #bb207.i movl 72(%esp), %ecx movb (%ecx,%eax), %cl movl 80(%esp), %edx movb %cl, 1(%edx,%eax) incl %eax cmpl $143, %eax jne LBB1_57 #bb207.i jmp LBB1_64 #cond_next255.i intead of: LBB1_57: #bb207.i movl 72(%esp), %ecx movb (%ecx,%eax), %cl movl 80(%esp), %edx movb %cl, 1(%edx,%eax) incl %eax cmpl $143, %eax je LBB1_64 #cond_next255.i jmp LBB1_57 #bb207.i This eliminates a branch per iteration of the loop. This hurted PPC particularly, because the extra branch meant another dispatch group for each iteration of the loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31530 91177308-0d34-0410-b5e6-96231b3b80d8		2006-11-08 01:03:21 +00:00
..
SelectionDAG
AsmPrinter.cpp
BranchFolding.cpp
DwarfWriter.cpp
ELFWriter.cpp
IntrinsicLowering.cpp
LiveInterval.cpp
LiveIntervalAnalysis.cpp
LiveVariables.cpp
LLVMTargetMachine.cpp
MachineBasicBlock.cpp
MachineDebugInfo.cpp
MachineFunction.cpp
MachineInstr.cpp
MachinePassRegistry.cpp
MachOWriter.cpp
Makefile
Passes.cpp
PHIElimination.cpp
PhysRegTracker.h
PrologEpilogInserter.cpp
RegAllocLinearScan.cpp
RegAllocLocal.cpp
RegAllocSimple.cpp
TwoAddressInstructionPass.cpp
UnreachableBlockElim.cpp
VirtRegMap.cpp
VirtRegMap.h