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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-05-14 21:30:58 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-05-14 21:30:58 +0000 |
| commit | a13fd12872adced4a483faeab7d5c13c00dc76f4 (patch) | |
| tree | 7fef66e63255c8ed4f6a9b31e3db492ca63dac13 /llvm/lib/CodeGen | |
| parent | dc2e0cd44a81c546aacba772d524f8af98b00f93 (diff) | |
| download | bcm5719-llvm-a13fd12872adced4a483faeab7d5c13c00dc76f4.tar.gz bcm5719-llvm-a13fd12872adced4a483faeab7d5c13c00dc76f4.zip | |
Don't access MO reference after invalidating operand list.
This should unbreak llvm-x86_64-linux.
llvm-svn: 156778
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/RegAllocFast.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/RegAllocFast.cpp b/llvm/lib/CodeGen/RegAllocFast.cpp index 15485b13dad..b3832221514 100644 --- a/llvm/lib/CodeGen/RegAllocFast.cpp +++ b/llvm/lib/CodeGen/RegAllocFast.cpp @@ -659,9 +659,10 @@ RAFast::reloadVirtReg(MachineInstr *MI, unsigned OpNum, // Return true if the operand kills its register. bool RAFast::setPhysReg(MachineInstr *MI, unsigned OpNum, unsigned PhysReg) { MachineOperand &MO = MI->getOperand(OpNum); + bool Dead = MO.isDead(); if (!MO.getSubReg()) { MO.setReg(PhysReg); - return MO.isKill() || MO.isDead(); + return MO.isKill() || Dead; } // Handle subregister index. @@ -680,7 +681,7 @@ bool RAFast::setPhysReg(MachineInstr *MI, unsigned OpNum, unsigned PhysReg) { if (MO.isDef() && MO.isUndef()) MI->addRegisterDefined(PhysReg, TRI); - return MO.isDead(); + return Dead; } // Handle special instruction operand like early clobbers and tied ops when |
