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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-05-14 22:40:40 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2010-05-14 22:40:40 +0000 |
| commit | ab2d00863f105b671b5f0da60152e14f13e0a4b3 (patch) | |
| tree | 63541c203ebacda6e5f3df70124f198166408e81 | |
| parent | 23ead992838188a3696a0c4510010b41824e789e (diff) | |
RegAllocLocal can count copies too
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103830 91177308-0d34-0410-b5e6-96231b3b80d8
| -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(); |