RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-25 12:12:47 +01:00
Code Issues Projects Releases Wiki Activity

Revert r52988. It broke 254.gap on x86-64.

Browse Source 
llvm-svn: 53050
This commit is contained in:
Dan Gohman 2008-07-02 22:12:55 +00:00
parent a420723feb
commit d9458e2d39
1 changed files with 18 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
lib/CodeGen/MachineInstr.cpp
View File

@ -738,7 +738,7 @@ bool MachineInstr::addRegisterKilled(unsigned IncomingReg,
const TargetRegisterInfo *RegInfo,
bool AddIfNotFound) {
bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg);
bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg);
bool Found = false;
SmallVector<unsigned,4> DeadOps;
for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
MachineOperand &MO = getOperand(i);
@ -749,15 +749,15 @@ bool MachineInstr::addRegisterKilled(unsigned IncomingReg,
continue;
if (Reg == IncomingReg) {
MO.setIsKill();
return true;
}
if (hasAliases && MO.isKill() &&
TargetRegisterInfo::isPhysicalRegister(Reg)) {
if (!Found) // One kill of reg per instruction.
MO.setIsKill();
Found = true;
} else if (isPhysReg && MO.isKill() &&
TargetRegisterInfo::isPhysicalRegister(Reg)) {
// A super-register kill already exists.
if (RegInfo->isSuperRegister(IncomingReg, Reg))
return true;
if (RegInfo->isSubRegister(IncomingReg, Reg))
Found = true;
else if (RegInfo->isSubRegister(IncomingReg, Reg))
DeadOps.push_back(i);
}
}
@ -774,14 +774,14 @@ bool MachineInstr::addRegisterKilled(unsigned IncomingReg,
// If not found, this means an alias of one of the operands is killed. Add a
// new implicit operand if required.
if (AddIfNotFound) {
if (!Found && AddIfNotFound) {
addOperand(MachineOperand::CreateReg(IncomingReg,
false /*IsDef*/,
true /*IsImp*/,
true /*IsKill*/));
return true;
}
return false;
return Found;
}
bool MachineInstr::addRegisterDead(unsigned IncomingReg,
@ -789,6 +789,7 @@ bool MachineInstr::addRegisterDead(unsigned IncomingReg,
bool AddIfNotFound) {
bool isPhysReg = TargetRegisterInfo::isPhysicalRegister(IncomingReg);
bool hasAliases = isPhysReg && RegInfo->getAliasSet(IncomingReg);
bool Found = false;
SmallVector<unsigned,4> DeadOps;
for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
MachineOperand &MO = getOperand(i);
@ -797,14 +798,13 @@ bool MachineInstr::addRegisterDead(unsigned IncomingReg,
unsigned Reg = MO.getReg();
if (Reg == IncomingReg) {
MO.setIsDead();
return true;
}
if (hasAliases && MO.isDead() &&
TargetRegisterInfo::isPhysicalRegister(Reg)) {
Found = true;
} else if (hasAliases && MO.isDead() &&
TargetRegisterInfo::isPhysicalRegister(Reg)) {
// There exists a super-register that's marked dead.
if (RegInfo->isSuperRegister(IncomingReg, Reg))
return true;
if (RegInfo->isSubRegister(IncomingReg, Reg))
Found = true;
else if (RegInfo->isSubRegister(IncomingReg, Reg))
DeadOps.push_back(i);
}
}
@ -821,13 +821,13 @@ bool MachineInstr::addRegisterDead(unsigned IncomingReg,
// If not found, this means an alias of one of the operand is dead. Add a
// new implicit operand.
if (AddIfNotFound) {
if (!Found && AddIfNotFound) {
addOperand(MachineOperand::CreateReg(IncomingReg, true/*IsDef*/,
true/*IsImp*/,false/*IsKill*/,
true/*IsDead*/));
return true;
}
return false;
return Found;
}
/// copyKillDeadInfo - copies killed/dead information from one instr to another