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Avoid adding duplicate function live-in's.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104560 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2010-05-24 21:33:37 +00:00
parent e350690e3b
commit 3946043a80
3 changed files with 21 additions and 2 deletions
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4
include/llvm/CodeGen/MachineRegisterInfo.h
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@@ -293,6 +293,10 @@ public:
/// corresponding live-in physical register.
unsigned getLiveInPhysReg(unsigned VReg) const;
/// getLiveInVirtReg - If PReg is a live-in physical register, return the
/// corresponding live-in physical register.
unsigned getLiveInVirtReg(unsigned PReg) const;
/// EmitLiveInCopies - Emit copies to initialize livein virtual registers
/// into the given entry block.
void EmitLiveInCopies(MachineBasicBlock *EntryMBB,