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Fix problem in DEBUG code. I could be pointing past the end and

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dereferencing it causes an assertion error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11458 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alkis Evlogimenos 2004-02-15 00:46:41 +00:00
parent 1fda3700be
commit b929bca027
2 changed files with 28 additions and 28 deletions
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28
lib/Target/X86/FloatingPoint.cpp
View File

@ -245,20 +245,20 @@ bool FPS::processBasicBlock(MachineFunction &MF, MachineBasicBlock &BB) {
} }
// Print out all of the instructions expanded to if -debug // Print out all of the instructions expanded to if -debug
DEBUG(if (&*I == PrevMI) { DEBUG(
std::cerr<< "Just deleted pseudo instruction\n"; MachineBasicBlock::iterator PrevI(PrevMI);
} else { if (I == PrevI) {
MachineBasicBlock::iterator Start = I; std::cerr<< "Just deleted pseudo instruction\n";
// Rewind to first instruction newly inserted. } else {
while (Start != BB.begin() && MachineBasicBlock::iterator Start = I;
--Start != MachineBasicBlock::iterator(PrevMI)); // Rewind to first instruction newly inserted.
++Start; while (Start != BB.begin() && prior(Start) != PrevI) --Start;
std::cerr << "Inserted instructions:\n\t"; std::cerr << "Inserted instructions:\n\t";
Start->print(std::cerr, MF.getTarget()); Start->print(std::cerr, MF.getTarget());
while (++Start != I); ++Start; while (++Start != next(I));
} }
dumpStack(); dumpStack();
); );
Changed = true; Changed = true;
} }

28
lib/Target/X86/X86FloatingPoint.cpp
View File

@ -245,20 +245,20 @@ bool FPS::processBasicBlock(MachineFunction &MF, MachineBasicBlock &BB) {
} }
// Print out all of the instructions expanded to if -debug // Print out all of the instructions expanded to if -debug
DEBUG(if (&*I == PrevMI) { DEBUG(
std::cerr<< "Just deleted pseudo instruction\n"; MachineBasicBlock::iterator PrevI(PrevMI);
} else { if (I == PrevI) {
MachineBasicBlock::iterator Start = I; std::cerr<< "Just deleted pseudo instruction\n";
// Rewind to first instruction newly inserted. } else {
while (Start != BB.begin() && MachineBasicBlock::iterator Start = I;
--Start != MachineBasicBlock::iterator(PrevMI)); // Rewind to first instruction newly inserted.
++Start; while (Start != BB.begin() && prior(Start) != PrevI) --Start;
std::cerr << "Inserted instructions:\n\t"; std::cerr << "Inserted instructions:\n\t";
Start->print(std::cerr, MF.getTarget()); Start->print(std::cerr, MF.getTarget());
while (++Start != I); ++Start; while (++Start != next(I));
} }
dumpStack(); dumpStack();
); );
Changed = true; Changed = true;
} }