From 6b1ec75da95ed9bec12c8a15b6964c00b23710fb Mon Sep 17 00:00:00 2001
From: Alkis Evlogimenos <alkis@evlogimenos.com>
Date: Tue, 13 Jan 2004 20:37:01 +0000
Subject: [PATCH] Fix bug introduced by previous commit: check if fixed
 intervals overlap before adding their spill weight.

llvm-svn: 10819
---
 llvm/lib/CodeGen/RegAllocLinearScan.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/llvm/lib/CodeGen/RegAllocLinearScan.cpp b/llvm/lib/CodeGen/RegAllocLinearScan.cpp
index 1116edd39a54..616c438f556d 100644
--- a/llvm/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/llvm/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);
-- 
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