6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-24 06:25:18 +00:00
Code Issues Projects Releases Wiki Activity

Clean up the public interface of RegScavenger.

Browse Source 
Remove unused methods and make others private.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79194 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2009-08-16 17:41:20 +00:00
parent f7e8af925c
commit e689ce626c
2 changed files with 20 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
lib/CodeGen/RegisterScavenging.cpp
View File

@@ -40,15 +40,6 @@ void RegScavenger::setUsed(unsigned Reg) {
RegsAvailable.reset(SubReg);
}
/// setUnused - Set the register and its sub-registers as being unused.
void RegScavenger::setUnused(unsigned Reg, const MachineInstr *MI) {
RegsAvailable.set(Reg);
for (const unsigned *SubRegs = TRI->getSubRegisters(Reg);
unsigned SubReg = *SubRegs; ++SubRegs)
RegsAvailable.set(SubReg);
}
bool RegScavenger::isAliasUsed(unsigned Reg) const {
if (isUsed(Reg))
return true;
@@ -118,16 +109,6 @@ void RegScavenger::enterBasicBlock(MachineBasicBlock *mbb) {
Tracking = false;
}
void RegScavenger::restoreScavengedReg() {
TII->loadRegFromStackSlot(*MBB, MBBI, ScavengedReg,
ScavengingFrameIndex, ScavengedRC);
MachineBasicBlock::iterator II = prior(MBBI);
TRI->eliminateFrameIndex(II, 0, this);
setUsed(ScavengedReg);
ScavengedReg = 0;
ScavengedRC = NULL;
}
#ifndef NDEBUG
/// isLiveInButUnusedBefore - Return true if register is livein the MBB not
/// not used before it reaches the MI that defines register.