Handle '*' and '#' asm constraint modifiers.

llvm-svn: 166924
diff --git a/clang/lib/Basic/TargetInfo.cpp b/clang/lib/Basic/TargetInfo.cpp
index b89b18b..3257526 100644
--- a/clang/lib/Basic/TargetInfo.cpp
+++ b/clang/lib/Basic/TargetInfo.cpp
@@ -364,6 +364,8 @@
       break;
     case '?': // Disparage slightly code.
     case '!': // Disparage severely.
+    case '#': // Ignore as constraint.
+    case '*': // Ignore for choosing register preferences.
       break;  // Pass them.
     }
 
@@ -483,6 +485,8 @@
       break;
     case '?': // Disparage slightly code.
     case '!': // Disparage severely.
+    case '#': // Ignore as constraint.
+    case '*': // Ignore for choosing register preferences.
       break;  // Pass them.
     }