diff options
Diffstat (limited to 'lib/CodeGen/RegAllocLocal.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocLocal.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocLocal.cpp b/lib/CodeGen/RegAllocLocal.cpp index 6372559824..8106a36c9b 100644 --- a/lib/CodeGen/RegAllocLocal.cpp +++ b/lib/CodeGen/RegAllocLocal.cpp @@ -37,6 +37,7 @@ using namespace llvm; STATISTIC(NumStores, "Number of stores added"); STATISTIC(NumLoads , "Number of loads added"); +STATISTIC(NumCopies, "Number of copies coalesced"); static RegisterRegAlloc localRegAlloc("local", "local register allocator", @@ -1156,8 +1157,10 @@ void RALocal::AllocateBasicBlock(MachineBasicBlock &MBB) { if (TII->isMoveInstr(*MI, SrcCopyReg, DstCopyReg, SrcCopySubReg, DstCopySubReg) && SrcCopyReg == DstCopyReg && SrcCopySubReg == DstCopySubReg && - DeadDefs.empty()) + DeadDefs.empty()) { + ++NumCopies; MBB.erase(MI); + } } MachineBasicBlock::iterator MI = MBB.getFirstTerminator(); |