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Use a new local data structure instead of the MachineInstr::regsUsed set

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7621 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-08-05 22:11:13 +00:00
parent c393c57afc
commit 3fd1f5bb6a
2 changed files with 14 additions and 16 deletions
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15
lib/CodeGen/RegAlloc/PhyRegAlloc.cpp
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@ -1059,7 +1059,7 @@ int PhyRegAlloc::getUsableUniRegAtMI(const int RegType,
// of copying it to memory and back. But we have to mark the // of copying it to memory and back. But we have to mark the
// register as used by this instruction, so it does not get used // register as used by this instruction, so it does not get used
// as a scratch reg. by another operand or anyone else. // as a scratch reg. by another operand or anyone else.
MInst->insertUsedReg(scratchReg); ScratchRegsUsed.insert(std::make_pair(MInst, scratchReg));
MRI.cpReg2RegMI(MIBef, RegU, scratchReg, RegType); MRI.cpReg2RegMI(MIBef, RegU, scratchReg, RegType);
MRI.cpReg2RegMI(MIAft, scratchReg, RegU, RegType); MRI.cpReg2RegMI(MIAft, scratchReg, RegU, RegType);
} }
@ -1175,13 +1175,12 @@ void PhyRegAlloc::setRelRegsUsedByThisInst(RegClass *RC, int RegType,
markRegisterUsed(MI->getImplicitOp(i).getAllocatedRegNum(), RC, markRegisterUsed(MI->getImplicitOp(i).getAllocatedRegNum(), RC,
RegType,MRI); RegType,MRI);
// The getRegsUsed() method returns the set of scratch registers that are used // Add all of the scratch registers that are used to save values across the
// to save values across the instruction (e.g., for saving state register // instruction (e.g., for saving state register values).
// values). std::pair<ScratchRegsUsedTy::iterator, ScratchRegsUsedTy::iterator>
const std::set<int> &regsUsed = MI->getRegsUsed(); IR = ScratchRegsUsed.equal_range(MI);
for (std::set<int>::iterator I = regsUsed.begin(), for (ScratchRegsUsedTy::iterator I = IR.first; I != IR.second; ++I)
E = regsUsed.end(); I != E; ++I) markRegisterUsed(I->second, RC, RegType, MRI);
markRegisterUsed(*I, RC, RegType, MRI);
// If there are implicit references, mark their allocated regs as well // If there are implicit references, mark their allocated regs as well
// //

15
lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp
View File

@ -1059,7 +1059,7 @@ int PhyRegAlloc::getUsableUniRegAtMI(const int RegType,
// of copying it to memory and back. But we have to mark the // of copying it to memory and back. But we have to mark the
// register as used by this instruction, so it does not get used // register as used by this instruction, so it does not get used
// as a scratch reg. by another operand or anyone else. // as a scratch reg. by another operand or anyone else.
MInst->insertUsedReg(scratchReg); ScratchRegsUsed.insert(std::make_pair(MInst, scratchReg));
MRI.cpReg2RegMI(MIBef, RegU, scratchReg, RegType); MRI.cpReg2RegMI(MIBef, RegU, scratchReg, RegType);
MRI.cpReg2RegMI(MIAft, scratchReg, RegU, RegType); MRI.cpReg2RegMI(MIAft, scratchReg, RegU, RegType);
} }
@ -1175,13 +1175,12 @@ void PhyRegAlloc::setRelRegsUsedByThisInst(RegClass *RC, int RegType,
markRegisterUsed(MI->getImplicitOp(i).getAllocatedRegNum(), RC, markRegisterUsed(MI->getImplicitOp(i).getAllocatedRegNum(), RC,
RegType,MRI); RegType,MRI);
// The getRegsUsed() method returns the set of scratch registers that are used // Add all of the scratch registers that are used to save values across the
// to save values across the instruction (e.g., for saving state register // instruction (e.g., for saving state register values).
// values). std::pair<ScratchRegsUsedTy::iterator, ScratchRegsUsedTy::iterator>
const std::set<int> &regsUsed = MI->getRegsUsed(); IR = ScratchRegsUsed.equal_range(MI);
for (std::set<int>::iterator I = regsUsed.begin(), for (ScratchRegsUsedTy::iterator I = IR.first; I != IR.second; ++I)
E = regsUsed.end(); I != E; ++I) markRegisterUsed(I->second, RC, RegType, MRI);
markRegisterUsed(*I, RC, RegType, MRI);
// If there are implicit references, mark their allocated regs as well // If there are implicit references, mark their allocated regs as well
// //