diff options
| -rw-r--r-- | lib/CodeGen/SimpleRegisterCoalescing.cpp | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp index 65c8a5b..92a4ebe 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -53,14 +53,6 @@ namespace { cl::desc("Use new coalescer heuristic"), cl::init(false)); - static cl::opt<bool> - CommuteDef("coalescer-commute-instrs", - cl::init(true), cl::Hidden); - - static cl::opt<int> - CommuteLimit("commute-limit", - cl::init(-1), cl::Hidden); - RegisterPass<SimpleRegisterCoalescing> X("simple-register-coalescing", "Simple Register Coalescing"); @@ -247,8 +239,6 @@ bool SimpleRegisterCoalescing::HasOtherReachingDefs(LiveInterval &IntA, bool SimpleRegisterCoalescing::RemoveCopyByCommutingDef(LiveInterval &IntA, LiveInterval &IntB, MachineInstr *CopyMI) { - if (!CommuteDef) return false; - unsigned CopyIdx = li_->getDefIndex(li_->getInstructionIndex(CopyMI)); // FIXME: For now, only eliminate the copy by commuting its def when the @@ -293,9 +283,6 @@ bool SimpleRegisterCoalescing::RemoveCopyByCommutingDef(LiveInterval &IntA, if (HasOtherReachingDefs(IntA, IntB, AValNo, BValNo)) return false; - if (CommuteLimit >= 0 && numCommutes >= (unsigned)CommuteLimit) - return false; - // At this point we have decided that it is legal to do this // transformation. Start by commuting the instruction. MachineBasicBlock *MBB = DefMI->getParent(); |