maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Don't transfer unused values to the new intervals formed by splitting. 

llvm-svn: 117673
This commit is contained in:
Jakob Stoklund Olesen 2010-10-29 17:47:49 +00:00
parent 16bd9f1ab5
commit 140542fcea
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
llvm/lib/CodeGen/SplitKit.cpp
View File

@ -913,6 +913,9 @@ void SplitEditor::computeRemainder() {
for (LiveInterval::const_vni_iterator I = parent.vni_begin(),
E = parent.vni_end(); I != E; ++I) {
const VNInfo *VNI = *I;
// Don't transfer unused values to the new intervals.
if (VNI->isUnused())
continue;
// Original def is contained in the split intervals.
if (intervalsLiveAt(VNI->def)) {
// Did this value escape?