[llvm-commits] CVS: llvm/lib/Target/TargetInstrInfo.cpp
Evan Cheng
evan.cheng at apple.com
Wed May 16 14:52:54 PDT 2007
Changes in directory llvm/lib/Target:
TargetInstrInfo.cpp updated: 1.27 -> 1.28
---
Log message:
PredicateInstruction returns true if the operation was successful.
---
Diffs of the changes: (+19 -14)
TargetInstrInfo.cpp | 33 +++++++++++++++++++--------------
1 files changed, 19 insertions(+), 14 deletions(-)
Index: llvm/lib/Target/TargetInstrInfo.cpp
diff -u llvm/lib/Target/TargetInstrInfo.cpp:1.27 llvm/lib/Target/TargetInstrInfo.cpp:1.28
--- llvm/lib/Target/TargetInstrInfo.cpp:1.27 Wed May 16 16:20:37 2007
+++ llvm/lib/Target/TargetInstrInfo.cpp Wed May 16 16:52:35 2007
@@ -60,22 +60,27 @@
return MI;
}
-void TargetInstrInfo::PredicateInstruction(MachineInstr *MI,
+bool TargetInstrInfo::PredicateInstruction(MachineInstr *MI,
std::vector<MachineOperand> &Cond) const {
+ bool MadeChange = false;
const TargetInstrDescriptor *TID = MI->getInstrDescriptor();
- assert((TID->Flags & M_PREDICABLE) &&
- "Predicating an unpredicable instruction!");
-
- for (unsigned j = 0, i = 0, e = MI->getNumOperands(); i != e; ++i) {
- if ((TID->OpInfo[i].Flags & M_PREDICATE_OPERAND)) {
- MachineOperand &MO = MI->getOperand(i);
- if (MO.isReg())
- MO.setReg(Cond[j].getReg());
- else if (MO.isImm())
- MO.setImm(Cond[j].getImmedValue());
- else if (MO.isMBB())
- MO.setMachineBasicBlock(Cond[j].getMachineBasicBlock());
- ++j;
+ if (TID->Flags & M_PREDICABLE) {
+ for (unsigned j = 0, i = 0, e = MI->getNumOperands(); i != e; ++i) {
+ if ((TID->OpInfo[i].Flags & M_PREDICATE_OPERAND)) {
+ MachineOperand &MO = MI->getOperand(i);
+ if (MO.isReg()) {
+ MO.setReg(Cond[j].getReg());
+ MadeChange = true;
+ } else if (MO.isImm()) {
+ MO.setImm(Cond[j].getImmedValue());
+ MadeChange = true;
+ } else if (MO.isMBB()) {
+ MO.setMachineBasicBlock(Cond[j].getMachineBasicBlock());
+ MadeChange = true;
+ }
+ ++j;
+ }
}
}
+ return MadeChange;
}
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