Fix bug introduced by previous commit: check if fixed intervals
overlap before adding their spill weight.
llvm-svn: 10819
diff --git a/llvm/lib/CodeGen/RegAllocLinearScan.cpp b/llvm/lib/CodeGen/RegAllocLinearScan.cpp
index 1116edd..616c438 100644
--- a/llvm/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/llvm/lib/CodeGen/RegAllocLinearScan.cpp
@@ -547,6 +547,9 @@
// for each fixed interval that overlaps
for (IntervalPtrs::const_iterator i = fixed_.begin(), e = fixed_.end();
i != e; ++i) {
+ if (!cur->overlaps(**i))
+ continue;
+
assert((*i)->reg < MRegisterInfo::FirstVirtualRegister &&
"virtual register interval in fixed set?");
updateWeight(regWeight, (*i)->reg, (*i)->weight);