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Fix delay slot filler for non mips1 targets. Patch by Akira Hatanaka

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121376 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes
2010-12-09 17:31:11 +00:00
parent 7d17097e4a
commit 90c595425b
1 changed files with 9 additions and 5 deletions
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14
lib/Target/Mips/MipsDelaySlotFiller.cpp
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@@ -31,7 +31,7 @@ namespace {
const TargetInstrInfo *TII; const TargetInstrInfo *TII;
static char ID; static char ID;
Filler(TargetMachine &tm) Filler(TargetMachine &tm)
: MachineFunctionPass(ID), TM(tm), TII(tm.getInstrInfo()) { } : MachineFunctionPass(ID), TM(tm), TII(tm.getInstrInfo()) { }
virtual const char *getPassName() const { virtual const char *getPassName() const {
@@ -55,18 +55,22 @@ namespace {
/// Currently, we fill delay slots with NOPs. We assume there is only one /// Currently, we fill delay slots with NOPs. We assume there is only one
/// delay slot per delayed instruction. /// delay slot per delayed instruction.
bool Filler:: bool Filler::
runOnMachineBasicBlock(MachineBasicBlock &MBB) runOnMachineBasicBlock(MachineBasicBlock &MBB)
{ {
bool Changed = false; bool Changed = false;
for (MachineBasicBlock::iterator I = MBB.begin(); I != MBB.end(); ++I) for (MachineBasicBlock::iterator I = MBB.begin(); I != MBB.end(); ++I) {
if (TM.getSubtarget<MipsSubtarget>().isMips1() && const TargetInstrDesc& Tid = I->getDesc();
I->getDesc().hasDelaySlot()) { if (Tid.hasDelaySlot() &&
(TM.getSubtarget<MipsSubtarget>().isMips1() ||
Tid.isCall() || Tid.isBranch() || Tid.isReturn())) {
MachineBasicBlock::iterator J = I; MachineBasicBlock::iterator J = I;
++J; ++J;
BuildMI(MBB, J, I->getDebugLoc(), TII->get(Mips::NOP)); BuildMI(MBB, J, I->getDebugLoc(), TII->get(Mips::NOP));
++FilledSlots; ++FilledSlots;
Changed = true; Changed = true;
} }
}
return Changed; return Changed;
} }