From 9b23d57dc480a34eee9867be52b9c2022e8979f6 Mon Sep 17 00:00:00 2001
From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Mon, 7 May 2012 21:59:31 +0000
Subject: [PATCH] Fix bug in TRI::getCommonSuperRegClass().

Test cases for this code are coming. It is not used for anything yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156327 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/TargetRegisterInfo.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Target/TargetRegisterInfo.cpp b/lib/Target/TargetRegisterInfo.cpp
index 532e6d23189..4acbe729d74 100644
--- a/lib/Target/TargetRegisterInfo.cpp
+++ b/lib/Target/TargetRegisterInfo.cpp
@@ -207,6 +207,7 @@ getCommonSuperRegClass(const TargetRegisterClass *RCA, unsigned SubA,
   unsigned *BestPreB = &PreB;
   if (RCA->getSize() < RCB->getSize()) {
     std::swap(RCA, RCB);
+    std::swap(SubA, SubB);
     std::swap(BestPreA, BestPreB);
   }