6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-17 20:23:59 +00:00
Code Issues Projects Releases Wiki Activity

Add LiveIntervals::getLastSplitPoint().

Browse Source 
A live range cannot be split everywhere in a basic block. A split must go before
the first terminator, and if the variable is live into a landing pad, the split
must happen before the call that can throw.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124894 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-02-04 19:33:11 +00:00
parent 9b3d24bf3d
commit cb6404711b
5 changed files with 43 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
lib/CodeGen/MachineBasicBlock.cpp
View File

@ -175,6 +175,16 @@ MachineBasicBlock::iterator MachineBasicBlock::getLastNonDebugInstr() {
return end();
}
const MachineBasicBlock *MachineBasicBlock::getLandingPadSuccessor() const {
// A block with a landing pad successor only has one other successor.
if (succ_size() > 2)
return 0;
for (const_succ_iterator I = succ_begin(), E = succ_end(); I != E; ++I)
if ((*I)->isLandingPad())
return *I;
return 0;
}
void MachineBasicBlock::dump() const {
print(dbgs());
}