Add in some things I forgot, which Chris helpfully reminded me of...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12735 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/DelaySlotFiller.cpp b/lib/Target/Sparc/DelaySlotFiller.cpp
index 036b1dd..10449ad 100644
--- a/lib/Target/Sparc/DelaySlotFiller.cpp
+++ b/lib/Target/Sparc/DelaySlotFiller.cpp
@@ -63,14 +63,18 @@
}
/// runOnMachineBasicBlock - Fill in delay slots for the given basic block.
+/// Currently, we fill delay slots with NOPs. We assume there is only one
+/// delay slot per delayed instruction.
///
bool Filler::runOnMachineBasicBlock (MachineBasicBlock &MBB) {
+ bool Changed = false;
for (MachineBasicBlock::iterator I = MBB.begin (); I != MBB.end (); ++I)
if (hasDelaySlot (I->getOpcode ())) {
MachineBasicBlock::iterator J = I;
++J;
- MBB.insert (J, BuildMI (V8::NOP, 0));
+ BuildMI (MBB, J, V8::NOP, 0);
++FilledSlots;
+ Changed = true;
}
- return false;
+ return Changed;
}