From fd0f93fa1da8cecdcfef5b12da367708ef55a343 Mon Sep 17 00:00:00 2001
From: Cameron Zwarich <zwarich@apple.com>
Date: Wed, 20 Feb 2013 06:46:36 +0000
Subject: [PATCH] Fix a misunderstanding about how RegMaskBlocks works. This
 was caught by assertions in the register allocator when running 'make check'
 without LiveVariables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175599 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/CodeGen/LiveIntervalAnalysis.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/llvm/CodeGen/LiveIntervalAnalysis.h b/include/llvm/CodeGen/LiveIntervalAnalysis.h
index c0de49e52ab..46323681577 100644
--- a/include/llvm/CodeGen/LiveIntervalAnalysis.h
+++ b/include/llvm/CodeGen/LiveIntervalAnalysis.h
@@ -218,7 +218,7 @@ namespace llvm {
       Indexes->insertMBBInMaps(MBB);
       assert(unsigned(MBB->getNumber()) == RegMaskBlocks.size() &&
              "Blocks must be added in order.");
-      RegMaskBlocks.push_back(std::make_pair(MBB->getNumber(), 0));
+      RegMaskBlocks.push_back(std::make_pair(RegMaskSlots.size(), 0));
     }
 
     SlotIndex InsertMachineInstrInMaps(MachineInstr *MI) {