namespace llvm {
/// finalizeBundle - Finalize a machine instruction bundle which includes
-/// a sequence of instructions starting from FirstMI to LastMI (inclusive).
+/// a sequence of instructions starting from FirstMI to LastMI (exclusive).
/// This routine adds a BUNDLE instruction to represent the bundle, it adds
/// IsInternalRead markers to MachineOperands which are defined inside the
/// bundle, and it copies externally visible defs and uses to the BUNDLE
MachineBasicBlock::instr_iterator FirstMI,
MachineBasicBlock::instr_iterator LastMI);
+/// finalizeBundle - Same functionality as the previous finalizeBundle except
+/// the last instruction in the bundle is not provided as an input. This is
+/// used in cases where bundles are pre-determined by marking instructions
+/// with 'InsideBundle' marker.
+void finalizeBundle(MachineBasicBlock &MBB,
+ MachineBasicBlock::instr_iterator FirstMI);
+
} // End llvm namespace
#endif
}
/// finalizeBundle - Finalize a machine instruction bundle which includes
-/// a sequence of instructions starting from FirstMI to LastMI (inclusive).
+/// a sequence of instructions starting from FirstMI to LastMI (exclusive).
/// This routine adds a BUNDLE instruction to represent the bundle, it adds
/// IsInternalRead markers to MachineOperands which are defined inside the
/// bundle, and it copies externally visible defs and uses to the BUNDLE
void llvm::finalizeBundle(MachineBasicBlock &MBB,
MachineBasicBlock::instr_iterator FirstMI,
MachineBasicBlock::instr_iterator LastMI) {
+ assert(FirstMI != LastMI && "Empty bundle?");
+
const TargetMachine &TM = MBB.getParent()->getTarget();
const TargetInstrInfo *TII = TM.getInstrInfo();
const TargetRegisterInfo *TRI = TM.getRegisterInfo();
SmallSet<unsigned, 8> KilledUseSet;
SmallSet<unsigned, 8> UndefUseSet;
SmallVector<MachineOperand*, 4> Defs;
- do {
+ for (; FirstMI != LastMI; ++FirstMI) {
for (unsigned i = 0, e = FirstMI->getNumOperands(); i != e; ++i) {
MachineOperand &MO = FirstMI->getOperand(i);
if (!MO.isReg())
FirstMI->setIsInsideBundle();
Defs.clear();
- } while (FirstMI++ != LastMI);
+ }
SmallSet<unsigned, 8> Added;
for (unsigned i = 0, e = LocalDefs.size(); i != e; ++i) {
getImplRegState(true));
}
}
+
+/// finalizeBundle - Same functionality as the previous finalizeBundle except
+/// the last instruction in the bundle is not provided as an input. This is
+/// used in cases where bundles are pre-determined by marking instructions
+/// with 'InsideBundle' marker.
+void llvm::finalizeBundle(MachineBasicBlock &MBB,
+ MachineBasicBlock::instr_iterator FirstMI) {
+ MachineBasicBlock::instr_iterator E = MBB.instr_end();
+ MachineBasicBlock::instr_iterator LastMI = llvm::next(FirstMI);
+ while (LastMI != E && LastMI->isInsideBundle())
+ ++LastMI;
+ finalizeBundle(MBB, FirstMI, LastMI);
+}