diff options
| -rw-r--r-- | lib/CodeGen/RegisterScavenging.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp index 690e59f96e..b3e79756b6 100644 --- a/lib/CodeGen/RegisterScavenging.cpp +++ b/lib/CodeGen/RegisterScavenging.cpp @@ -258,6 +258,10 @@ unsigned RegScavenger::findSurvivorReg(MachineBasicBlock::iterator StartMI, bool inVirtLiveRange = false; for (++MI; InstrLimit > 0 && MI != ME; ++MI, --InstrLimit) { + if (MI->isDebugValue()) { + ++InstrLimit; // Don't count debug instructions + continue; + } bool isVirtKillInsn = false; bool isVirtDefInsn = false; // Remove any candidates touched by instruction. |