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- Change the horrible N^2 isRegReDefinedByTwoAddr. Now callers must supply the operand index of def machineoperand and at most one full scan of non-implicit operands is needed.

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- Change local register allocator to use the new isRegReDefinedByTwoAddr instead of reinventing the wheel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53394 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-07-10 07:35:43 +00:00
parent 5dcc41f5b3
commit ef0732d25a
5 changed files with 24 additions and 37 deletions
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4
include/llvm/CodeGen/LiveIntervalAnalysis.h
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@ -328,14 +328,14 @@ namespace llvm {
/// handleVirtualRegisterDef)
void handleRegisterDef(MachineBasicBlock *MBB,
MachineBasicBlock::iterator MI, unsigned MIIdx,
MachineOperand& MO);
MachineOperand& MO, unsigned MOIdx);
/// handleVirtualRegisterDef - update intervals for a virtual
/// register def
void handleVirtualRegisterDef(MachineBasicBlock *MBB,
MachineBasicBlock::iterator MI,
unsigned MIIdx, MachineOperand& MO,
LiveInterval& interval);
unsigned MOIdx, LiveInterval& interval);
/// handlePhysicalRegisterDef - update intervals for a physical register
/// def.