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| author | rdivacky <rdivacky@FreeBSD.org> | 2010-03-16 16:51:38 +0000 |
|---|---|---|
| committer | rdivacky <rdivacky@FreeBSD.org> | 2010-03-16 16:51:38 +0000 |
| commit | 0f448b841684305c051796982f300c9bff959307 (patch) | |
| tree | 458dd25677a43aef6390ecadb4423817f00e08b0 /lib/CodeGen/MachineCSE.cpp | |
| parent | 9e2446b38c94db61b2416c28fee415c03663c11c (diff) | |
| download | FreeBSD-src-0f448b841684305c051796982f300c9bff959307.zip FreeBSD-src-0f448b841684305c051796982f300c9bff959307.tar.gz | |
Update LLVM to r98631.
Diffstat (limited to 'lib/CodeGen/MachineCSE.cpp')
| -rw-r--r-- | lib/CodeGen/MachineCSE.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp index ce95d8d..91d3635 100644 --- a/lib/CodeGen/MachineCSE.cpp +++ b/lib/CodeGen/MachineCSE.cpp @@ -122,8 +122,12 @@ bool MachineCSE::isPhysDefTriviallyDead(unsigned Reg, // Reached end of block, register is obviously dead. return true; - if (I->isDebugValue()) + if (I->isDebugValue()) { + // These must not count against the limit. + ++LookAheadLeft; + ++I; continue; + } bool SeenDef = false; for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i) { const MachineOperand &MO = I->getOperand(i); @@ -188,7 +192,7 @@ static bool isCopy(const MachineInstr *MI, const TargetInstrInfo *TII) { bool MachineCSE::isCSECandidate(MachineInstr *MI) { if (MI->isLabel() || MI->isPHI() || MI->isImplicitDef() || - MI->isKill() || MI->isInlineAsm()) + MI->isKill() || MI->isInlineAsm() || MI->isDebugValue()) return false; // Ignore copies. |
