commit f7df173e3bf03c0d91adfa695fd9845583fb9d49
author Alkis Evlogimenos <alkis@evlogimenos.com> Tue Jan 13 20:37:01 2004 +0000
committer Alkis Evlogimenos <alkis@evlogimenos.com> Tue Jan 13 20:37:01 2004 +0000
tree 03e71672d56f36c02abebe1f36fd536d1d7e9c8b
parent f9543267413b17efa54f9f0d53be838a69ea2aef

Fix bug introduced by previous commit: check if fixed intervals
overlap before adding their spill weight.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10819 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/RegAllocLinearScan.cpp

diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index 1116edd..616c438 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/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);