diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/SplitKit.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/CodeGen/SplitKit.cpp b/lib/CodeGen/SplitKit.cpp index 1753c2ef86..2430161eca 100644 --- a/lib/CodeGen/SplitKit.cpp +++ b/lib/CodeGen/SplitKit.cpp @@ -674,8 +674,14 @@ void SplitEditor::rewrite() { // dupli_ goes in last, after rewriting. if (dupli_) { - dupli_->RenumberValues(lis_); - intervals_.push_back(dupli_); + if (dupli_->empty()) { + DEBUG(dbgs() << " dupli became empty?\n"); + lis_.removeInterval(dupli_->reg); + dupli_ = 0; + } else { + dupli_->RenumberValues(lis_); + intervals_.push_back(dupli_); + } } // Calculate spill weight and allocation hints for new intervals. |