6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-08-05 13:26:55 +00:00
Code Issues Projects Releases Wiki Activity

- Set the "HasCalls" flag after instruction selection is finished.

Browse Source 
- Change the logic DisableFramePointerElim() to check for the
  -disable-non-leaf-fp-elim before -disable-fp-elim.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103990 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2010-05-17 23:09:50 +00:00
parent ebe7fcd041
commit 53f7602b61
2 changed files with 23 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
View File

@@ -233,6 +233,24 @@ bool SelectionDAGISel::runOnMachineFunction(MachineFunction &mf) {
}
}
// Determine if there are any calls in this machine function.
MachineFrameInfo *MFI = MF->getFrameInfo();
if (!MFI->hasCalls()) {
for (MachineFunction::const_iterator
I = MF->begin(), E = MF->end(); I != E; ++I) {
const MachineBasicBlock *MBB = I;
for (MachineBasicBlock::const_iterator
II = MBB->begin(), IE = MBB->end(); II != IE; ++II) {
const TargetInstrDesc &TID = TM.getInstrInfo()->get(II->getOpcode());
if (II->isInlineAsm() || (TID.isCall() && !TID.isReturn())) {
MFI->setHasCalls(true);
goto done;
}
}
}
done:;
}
// Release function-specific state. SDB and CurDAG are already cleared
// at this point.
FuncInfo->clear();
@@ -606,19 +624,6 @@ MachineBasicBlock *SelectionDAGISel::CodeGenAndEmitDAG(MachineBasicBlock *BB) {
delete Scheduler;
}
// Determine if there are any calls in this machine function.
MachineFrameInfo *MFI = MF->getFrameInfo();
if (!MFI->hasCalls()) {
for (MachineBasicBlock::iterator
I = BB->begin(), E = BB->end(); I != E; ++I) {
const TargetInstrDesc &TID = TM.getInstrInfo()->get(I->getOpcode());
if (I->isInlineAsm() || (TID.isCall() && !TID.isReturn())) {
MFI->setHasCalls(true);
break;
}
}
}
// Free the SelectionDAG state, now that we're finished with it.
CurDAG->clear();
@@ -676,6 +681,7 @@ void SelectionDAGISel::DoInstructionSelection() {
CurDAG->setRoot(Dummy.getValue());
}
DEBUG(errs() << "===== Instruction selection ends:\n");
PostprocessISelDAG();