diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-04 05:20:49 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-04 05:20:49 +0000 |
| commit | 3b1088a2cc15a39c7a7b8dd95a56143f1dda6863 (patch) | |
| tree | ce23a7d61d6e930ded118c1537fa962ac6df2b09 /lib/CodeGen/LiveRangeCalc.cpp | |
| parent | edc8db87dc2ed4d2971e7f50464f5f4d0fead537 (diff) | |
Don't store COPY pointers in VNInfo.
If a value is defined by a COPY, that instuction can easily and cheaply
be found by getInstructionFromIndex(VNI->def).
This reduces the size of VNInfo from 24 to 16 bytes, and improves
llc compile time by 3%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149763 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveRangeCalc.cpp')
| -rw-r--r-- | lib/CodeGen/LiveRangeCalc.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/LiveRangeCalc.cpp b/lib/CodeGen/LiveRangeCalc.cpp index 1d6c3c5486..d8ab7918ae 100644 --- a/lib/CodeGen/LiveRangeCalc.cpp +++ b/lib/CodeGen/LiveRangeCalc.cpp @@ -237,7 +237,7 @@ void LiveRangeCalc::updateSSA(SlotIndexes *Indexes, assert(Alloc && "Need VNInfo allocator to create PHI-defs"); SlotIndex Start, End; tie(Start, End) = Indexes->getMBBRange(MBB); - VNInfo *VNI = I->LI->getNextValue(Start, 0, *Alloc); + VNInfo *VNI = I->LI->getNextValue(Start, *Alloc); VNI->setIsPHIDef(true); I->Value = VNI; // This block is done, we know the final value. |