diff options
Diffstat (limited to 'lib/CodeGen/SplitKit.cpp')
| -rw-r--r-- | lib/CodeGen/SplitKit.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/SplitKit.cpp b/lib/CodeGen/SplitKit.cpp index feb3d3481b..739ba36274 100644 --- a/lib/CodeGen/SplitKit.cpp +++ b/lib/CodeGen/SplitKit.cpp @@ -30,6 +30,8 @@ using namespace llvm; STATISTIC(NumFinished, "Number of splits finished"); STATISTIC(NumSimple, "Number of splits that were simple"); +STATISTIC(NumCopies, "Number of copies inserted for splitting"); +STATISTIC(NumRemats, "Number of rematerialized defs for splitting"); //===----------------------------------------------------------------------===// // Split Analysis @@ -589,12 +591,14 @@ VNInfo *SplitEditor::defFromParent(unsigned RegIdx, LiveRangeEdit::Remat RM(ParentVNI); if (Edit->canRematerializeAt(RM, UseIdx, true, LIS)) { Def = Edit->rematerializeAt(MBB, I, LI->reg, RM, LIS, TII, TRI, Late); + ++NumRemats; } else { // Can't remat, just insert a copy from parent. CopyMI = BuildMI(MBB, I, DebugLoc(), TII.get(TargetOpcode::COPY), LI->reg) .addReg(Edit->getReg()); Def = LIS.getSlotIndexes()->insertMachineInstrInMaps(CopyMI, Late) .getDefIndex(); + ++NumCopies; } // Define the value in Reg. |