diff options
| -rw-r--r-- | lib/CodeGen/PrologEpilogInserter.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/PrologEpilogInserter.cpp b/lib/CodeGen/PrologEpilogInserter.cpp index d9b01d0b26..8793df7705 100644 --- a/lib/CodeGen/PrologEpilogInserter.cpp +++ b/lib/CodeGen/PrologEpilogInserter.cpp @@ -797,10 +797,13 @@ void PEI::scavengeFrameVirtualRegs(MachineFunction &Fn) { if (Reg == PrevScratchReg) { if (MO.isUse()) { // Two-address operands implicitly kill - if (MO.isKill() || MI->isRegTiedToDefOperand(i)) + if (MO.isKill() || MI->isRegTiedToDefOperand(i)) { + havePrevValue = false; PrevScratchReg = 0; + } } else { assert (MO.isDef()); + havePrevValue = false; PrevScratchReg = 0; } } |