6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-09-27 16:17:17 +00:00
Code Issues Projects Releases Wiki Activity

Update live-in lists when splitting critical edges.

Browse Source 
Fixes PR10814. Patch by Jan Sjödin!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141960 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-10-14 17:25:46 +00:00
parent 008b58c4ae
commit ac7caa0d43
3 changed files with 108 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
lib/CodeGen/MachineBasicBlock.cpp
View File

@@ -571,6 +571,11 @@ MachineBasicBlock::SplitCriticalEdge(MachineBasicBlock *Succ, Pass *P) {
if (i->getOperand(ni+1).getMBB() == this)
i->getOperand(ni+1).setMBB(NMBB);
// Inherit live-ins from the successor
for (MachineBasicBlock::livein_iterator I = Succ->livein_begin(),
E = Succ->livein_end(); I != E; ++I)
NMBB->addLiveIn(*I);
// Update LiveVariables.
if (LV) {
// Restore kills of virtual registers that were killed by the terminators.