diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-08 23:44:04 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-08 23:44:04 +0000 |
| commit | 0c5f5f4916a5c72b2a6a9cb13f0b2c2add95b6f1 (patch) | |
| tree | 7e596f1a3bb007ea97dac18daf83b5cb74b0c269 /lib/Target/PowerPC/PPCCTRLoops.cpp | |
| parent | 4e6966266a6dbbd560e11f68e6a5ff3fd35c130d (diff) | |
Don't use getNextOperandForReg().
This way of using getNextOperandForReg() was unlikely to work as
intended. We don't give any guarantees about the order of operands in
the use-def chains, so looking only at operands following a given
operand in the chain doesn't make sense.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161542 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCCTRLoops.cpp')
| -rw-r--r-- | lib/Target/PowerPC/PPCCTRLoops.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCCTRLoops.cpp b/lib/Target/PowerPC/PPCCTRLoops.cpp index f50f9b5a33..2a2abb171f 100644 --- a/lib/Target/PowerPC/PPCCTRLoops.cpp +++ b/lib/Target/PowerPC/PPCCTRLoops.cpp @@ -337,7 +337,10 @@ CountValue *PPCCTRLoops::getTripCount(MachineLoop *L, // can get a useful trip count. The trip count can // be either a register or an immediate. The location // of the value depends upon the type (reg or imm). - while ((IV_Opnd = IV_Opnd->getNextOperandForReg())) { + for (MachineRegisterInfo::reg_iterator + RI = MRI->reg_begin(IV_Opnd->getReg()), RE = MRI->reg_end(); + RI != RE; ++RI) { + IV_Opnd = &RI.getOperand(); bool SignedCmp; MachineInstr *MI = IV_Opnd->getParent(); if (L->contains(MI) && isCompareEqualsImm(MI, SignedCmp) && |