diff options
Diffstat (limited to 'lib/CodeGen/SplitKit.cpp')
| -rw-r--r-- | lib/CodeGen/SplitKit.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/SplitKit.cpp b/lib/CodeGen/SplitKit.cpp index 46a43d8..2197046 100644 --- a/lib/CodeGen/SplitKit.cpp +++ b/lib/CodeGen/SplitKit.cpp @@ -952,7 +952,7 @@ void SplitEditor::rewriteAssigned(bool ExtendRanges) { << Idx << ':' << RegIdx << '\t' << *MI); // Extend liveness to Idx if the instruction reads reg. - if (!ExtendRanges) + if (!ExtendRanges || MO.isUndef()) continue; // Skip instructions that don't read Reg. |