diff options
| author | Roman Divacky <rdivacky@FreeBSD.org> | 2010-03-06 09:22:29 +0000 |
|---|---|---|
| committer | Roman Divacky <rdivacky@FreeBSD.org> | 2010-03-06 09:22:29 +0000 |
| commit | f5a3459adfde823bc7617f8ecfdd9fbc5a1ffadf (patch) | |
| tree | 542734eaa7870f95912cbaebccb87dbec0c20b4f /lib/Target/ARM/ARMLoadStoreOptimizer.cpp | |
| parent | 67a71b3184ce20a901e874d0ee25e01397dd87ef (diff) | |
Notes
Diffstat (limited to 'lib/Target/ARM/ARMLoadStoreOptimizer.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMLoadStoreOptimizer.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp index 5b4f02d6b75b..19f1e3ba12cf 100644 --- a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp +++ b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp @@ -761,6 +761,11 @@ static bool isMemoryOp(const MachineInstr *MI) { MI->getOperand(0).isUndef()) return false; + // Likewise don't mess with references to undefined addresses. + if (MI->getNumOperands() > 1 && MI->getOperand(1).isReg() && + MI->getOperand(1).isUndef()) + return false; + int Opcode = MI->getOpcode(); switch (Opcode) { default: break; |