6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-13 21:05:16 +00:00
Code Issues Projects Releases Wiki Activity

It is safe to ignore LastSplitPoint when the variable is not live out.

Browse Source 
No code will be inserted after the split point anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126319 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-02-23 18:26:31 +00:00
parent 292f62e06f
commit c70f687dce
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
lib/CodeGen/SplitKit.cpp
View File

@ -961,10 +961,10 @@ void SplitEditor::splitSingleBlocks(const SplitAnalysis::BlockPtrSet &Blocks) {
openIntv();
SlotIndex SegStart = enterIntvBefore(BI.FirstUse);
if (BI.LastUse < BI.LastSplitPoint) {
if (!BI.LiveOut || BI.LastUse < BI.LastSplitPoint) {
useIntv(SegStart, leaveIntvAfter(BI.LastUse));
} else {
// THe last use os after tha last valid split point.
// The last use is after the last valid split point.
SlotIndex SegStop = leaveIntvBefore(BI.LastSplitPoint);
useIntv(SegStart, SegStop);
overlapIntv(SegStop, BI.LastUse);