From: Alkis Evlogimenos <alkis@evlogimenos.com>
Date: Tue, 13 Jan 2004 20:37:01 +0000 (+0000)
Subject: Fix bug introduced by previous commit: check if fixed intervals
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f7df173e3bf03c0d91adfa695fd9845583fb9d49;p=oota-llvm.git

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
---

diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index 1116edd39a5..616c438f556 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -547,6 +547,9 @@ void RA::assignStackSlotAtInterval(IntervalPtrs::value_type cur)
     // 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);