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Add implicit def / use operands to MachineInstr.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31633 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2006-11-10 08:43:01 +00:00
parent e7680cef84
commit 438f7bc67c
6 changed files with 24 additions and 30 deletions
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19
lib/CodeGen/LiveVariables.cpp
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@ -228,7 +228,6 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
for (MachineBasicBlock::iterator I = MBB->begin(), E = MBB->end();
I != E; ++I) {
MachineInstr *MI = I;
const TargetInstrDescriptor &MID = TII.get(MI->getOpcode());
// Process all of the operands of the instruction...
unsigned NumOperandsToProcess = MI->getNumOperands();
@ -238,14 +237,7 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
if (MI->getOpcode() == TargetInstrInfo::PHI)
NumOperandsToProcess = 1;
// Loop over implicit uses, using them.
if (MID.ImplicitUses) {
for (const unsigned *ImplicitUses = MID.ImplicitUses;
*ImplicitUses; ++ImplicitUses)
HandlePhysRegUse(*ImplicitUses, MI);
}
// Process all explicit uses...
// Process all uses...
for (unsigned i = 0; i != NumOperandsToProcess; ++i) {
MachineOperand &MO = MI->getOperand(i);
if (MO.isRegister() && MO.isUse() && MO.getReg()) {
@ -258,14 +250,7 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
}
}
// Loop over implicit defs, defining them.
if (MID.ImplicitDefs) {
for (const unsigned *ImplicitDefs = MID.ImplicitDefs;
*ImplicitDefs; ++ImplicitDefs)
HandlePhysRegDef(*ImplicitDefs, MI);
}
// Process all explicit defs...
// Process all defs...
for (unsigned i = 0; i != NumOperandsToProcess; ++i) {
MachineOperand &MO = MI->getOperand(i);
if (MO.isRegister() && MO.isDef() && MO.getReg()) {