Back out r72764; I should have looked more carefully before committing

this.  The correct replacement for "Y" and "Yt" is "x".

llvm-svn: 72765

1 files changed, 0 insertions, 7 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index cdb7e080560..4b94bcfc432 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -754,13 +754,6 @@ X86TargetInfo::validateAsmConstraint(const char *&Name,
             // instructions.
     Info.setAllowsRegister();
     return true;
-  case 'Y':
-    ++Name;
-    if (*Name == 't') {
-      Info.setAllowsRegister();
-      return true;
-    }
-    return false;
   }
 }