Make isSafeToSpeculativelyExecute() return the right answer for some new instructions. Found by inspection; not sure what practical impact, if any, this has.

llvm-svn: 138962
2011-09-01 21:03:03 +00:00 · 2011-09-01 21:03:03 +00:00 · b053ac7e0c
parent 00d8c245b2
commit b053ac7e0c
1 changed files with 4 additions and 0 deletions
--- a/llvm/lib/VMCore/Instruction.cpp
+++ b/llvm/lib/VMCore/Instruction.cpp
@ -436,6 +436,10 @@ bool Instruction::isSafeToSpeculativelyExecute() const {
  case Unwind:
  case Unreachable:
  case Fence:
+  case LandingPad:
+  case AtomicRMW:
+  case AtomicCmpXchg:
+  case Resume:
    return false; // Misc instructions which have effects
  }
 }