diff options
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index d326729920..4dda548548 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -779,6 +779,13 @@ void LiveIntervals::shrinkToUses(LiveInterval *li) { if (VNI->isUnused()) continue; NewLI.addRange(LiveRange(VNI->def, VNI->def.getNextSlot(), VNI)); + + // A use tied to an early-clobber def ends at the load slot and isn't caught + // above. Catch it here instead. This probably only ever happens for inline + // assembly. + if (VNI->def.isUse()) + if (VNInfo *UVNI = li->getVNInfoAt(VNI->def.getLoadIndex())) + WorkList.push_back(std::make_pair(VNI->def.getLoadIndex(), UVNI)); } // Keep track of the PHIs that are in use. |