diff options
Diffstat (limited to 'lib/CodeGen/RegAllocSimple.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocSimple.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocSimple.cpp b/lib/CodeGen/RegAllocSimple.cpp index 6b95af82fd..31b637496c 100644 --- a/lib/CodeGen/RegAllocSimple.cpp +++ b/lib/CodeGen/RegAllocSimple.cpp @@ -173,7 +173,7 @@ void RegAllocSimple::AllocateBasicBlock(MachineBasicBlock &MBB) { // register in any given instruction unsigned physReg = Virt2PhysRegMap[virtualReg]; if (physReg == 0) { - if (op.opIsDef()) { + if (op.opIsDefOnly() || op.opIsDefAndUse()) { if (TM->getInstrInfo().isTwoAddrInstr(MI->getOpcode()) && i == 0) { // must be same register number as the first operand // This maps a = b + c into b += c, and saves b into a's spot |