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kill redundant SP/GP/RP save/restores across calls 

llvm-svn: 24183
This commit is contained in:
Duraid Madina 2005-11-04 10:01:10 +00:00
parent fc1d1b2499
commit d3260128af
1 changed files with 3 additions and 2 deletions
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5
llvm/lib/Target/IA64/IA64ISelLowering.cpp
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@ -192,20 +192,21 @@ IA64TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
VirtGPR = MF.getSSARegMap()->createVirtualRegister(getRegClassFor(MVT::i64));
BuildMI(&BB, IA64::PSEUDO_ALLOC, 0, VirtGPR);
// we create a PSEUDO_ALLOC (pseudo)instruction for now
/*
BuildMI(&BB, IA64::IDEF, 0, IA64::r1);
// hmm:
BuildMI(&BB, IA64::IDEF, 0, IA64::r12);
BuildMI(&BB, IA64::IDEF, 0, IA64::rp);
// ..hmm.
BuildMI(&BB, IA64::MOV, 1, GP).addReg(IA64::r1);
// hmm:
BuildMI(&BB, IA64::MOV, 1, SP).addReg(IA64::r12);
BuildMI(&BB, IA64::MOV, 1, RP).addReg(IA64::rp);
// ..hmm.
*/
unsigned tempOffset=0;