From 0c12b80a10a00b505120bb663305d13269f6e9b8 Mon Sep 17 00:00:00 2001
From: Chad Rosier <mcrosier@apple.com>
Date: Wed, 13 Feb 2013 21:27:17 +0000
Subject: [PATCH] [ms-inline asm] Add a comment about the determinism of the
 rewrite sort.

llvm-svn: 175082
---
 lib/MC/MCParser/AsmParser.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index 2cce8b0e43f..aa07ecb4e5d 100644
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -4030,6 +4030,8 @@ bool AsmParser::ParseDirectiveMSAlign(SMLoc IDLoc, ParseStatementInfo &Info) {
   return false;
 }
 
+// We are comparing pointers, but the pointers are relative to a single string.
+// Thus, this should always be deterministic.
 static int RewritesSort (const void *A, const void *B) {
   const AsmRewrite *AsmRewriteA = static_cast<const AsmRewrite*>(A);
   const AsmRewrite *AsmRewriteB = static_cast<const AsmRewrite*>(B);