From f315471e24305ee3c63960edca252ac91da5ee4a Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 13 Oct 2009 04:32:07 +0000
Subject: fix PR4938 by recognizing % as a modifier on outputs, previously we
 only recognized it on inputs.

llvm-svn: 83939
---
 clang/lib/Basic/TargetInfo.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'clang/lib')

diff --git a/clang/lib/Basic/TargetInfo.cpp b/clang/lib/Basic/TargetInfo.cpp
index 35d9ccd401d..9cd12493e7a 100644
--- a/clang/lib/Basic/TargetInfo.cpp
+++ b/clang/lib/Basic/TargetInfo.cpp
@@ -188,6 +188,9 @@ bool TargetInfo::validateOutputConstraint(ConstraintInfo &Info) const {
       }
     case '&': // early clobber.
       break;
+    case '%': // commutative.
+      // FIXME: Check that there is a another register after this one.
+      break;
     case 'r': // general register.
       Info.setAllowsRegister();
       break;
-- 
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