diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-05-05 17:22:53 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-05-05 17:22:53 +0000 |
| commit | e9bd4ea5fda4957c373a3bbc14803d9670041dcc (patch) | |
| tree | 067c92ac7b7bb7a1fabb28770e30c5a52b17d2f3 /lib/CodeGen/SplitKit.cpp | |
| parent | 23d3243e620064c69e4e6308156208f3205342c1 (diff) | |
| download | llvm-e9bd4ea5fda4957c373a3bbc14803d9670041dcc.tar.gz llvm-e9bd4ea5fda4957c373a3bbc14803d9670041dcc.tar.bz2 llvm-e9bd4ea5fda4957c373a3bbc14803d9670041dcc.tar.xz | |
Add some statistics to the splitting and spilling frameworks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130931 91177308-0d34-0410-b5e6-96231b3b80d8
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. |