return (brdesc.hasDelaySlot());
}
+static bool hasUnknownSideEffects(MachineBasicBlock::iterator &I,
+ TargetInstrDesc &desc) {
+ if (!desc.hasUnmodeledSideEffects())
+ return false;
+
+ unsigned op = I->getOpcode();
+ if (op == MBlaze::ADDK || op == MBlaze::ADDIK ||
+ op == MBlaze::ADDC || op == MBlaze::ADDIC ||
+ op == MBlaze::ADDKC || op == MBlaze::ADDIKC ||
+ op == MBlaze::RSUBK || op == MBlaze::RSUBIK ||
+ op == MBlaze::RSUBC || op == MBlaze::RSUBIC ||
+ op == MBlaze::RSUBKC || op == MBlaze::RSUBIKC)
+ return false;
+
+ return true;
+}
+
static MachineBasicBlock::iterator
findDelayInstr(MachineBasicBlock &MBB,MachineBasicBlock::iterator slot) {
MachineBasicBlock::iterator I = slot;
TargetInstrDesc desc = I->getDesc();
if (desc.hasDelaySlot() || desc.isBranch() || isDelayFiller(MBB,I) ||
desc.isCall() || desc.isReturn() || desc.isBarrier() ||
- desc.hasUnmodeledSideEffects())
+ hasUnknownSideEffects(I,desc))
break;
if (hasImmInstruction(I) || delayHasHazard(I,slot))