From 90c49c037e3334c9a1545e13377ca228a9d80bbb Mon Sep 17 00:00:00 2001
From: Owen Anderson <resistor@mac.com>
Date: Wed, 26 Oct 2011 17:28:49 +0000
Subject: [PATCH] The order of the two symbol listings in a Macho x86_64
 subtractor relocation is reversed from what seems intuitive to me.

llvm-svn: 143035
---
 llvm/lib/Object/MachOObjectFile.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/Object/MachOObjectFile.cpp b/llvm/lib/Object/MachOObjectFile.cpp
index 82b9231ed8d8..97eb52d70d0e 100644
--- a/llvm/lib/Object/MachOObjectFile.cpp
+++ b/llvm/lib/Object/MachOObjectFile.cpp
@@ -835,7 +835,9 @@ error_code MachOObjectFile::getRelocationValueString(DataRefImpl Rel,
         if (error_code ec = getRelocationTargetName(RENext->Word1, SucName))
           report_fatal_error(ec.message());
 
-        fmt << Name << "-" << SucName;
+        // The X86_64_RELOC_UNSIGNED contains the minuend symbol,
+        // X86_64_SUBTRACTOR contains to the subtrahend.
+        fmt << SucName << "-" << Name;
       }
       case 6: // X86_64_RELOC_SIGNED1
         fmt << Name << "-1";