MachineBasicBlock::iterator MachineBasicBlock::getFirstTerminator() {
iterator I = end();
- while (I != begin() && (--I)->getDesc().isTerminator())
+ while (I != begin() && ((--I)->getDesc().isTerminator() || I->isDebugValue()))
; /*noop */
- if (I != end() && !I->getDesc().isTerminator()) ++I;
+ while (I != end() && !I->getDesc().isTerminator())
+ ++I;
return I;
}
+MachineBasicBlock::iterator MachineBasicBlock::getLastNonDebugInstr() {
+ iterator B = begin(), I = end();
+ while (I != B) {
+ --I;
+ if (I->isDebugValue())
+ continue;
+ return I;
+ }
+ // The block is all debug values.
+ return end();
+}
+
+const MachineBasicBlock *MachineBasicBlock::getLandingPadSuccessor() const {
+ // A block with a landing pad successor only has one other successor.
+ if (succ_size() > 2)
+ return 0;
+ for (const_succ_iterator I = succ_begin(), E = succ_end(); I != E; ++I)
+ if ((*I)->isLandingPad())
+ return *I;
+ return 0;
+}
+
void MachineBasicBlock::dump() const {
print(dbgs());
}
if (Indexes) OS << '\t';
OS << " Live Ins:";
for (livein_iterator I = livein_begin(),E = livein_end(); I != E; ++I)
- OS << PrintReg(*I, TRI);
+ OS << ' ' << PrintReg(*I, TRI);
OS << '\n';
}
// Print the preds of this block according to the CFG.