[llvm-commits] [dragonegg] r142529 - /dragonegg/trunk/src/Convert.cpp

[Duncan Sands]

Author: baldrick
Date: Wed Oct 19 08:25:38 2011
New Revision: 142529

URL: http://llvm.org/viewvc/llvm-project?rev=142529&view=rev
Log:
Port commits 132591 and 132595 (echristo) from llvm-gcc:
Prepend a parser helping character on multichar constraints.
Part of rdar://9037836 and rdar://9119939

"mr" is a valid constraint for our purposes here, not one constraint.
Use CONSTRAINT_LEN to get the real length of the constraint.
Part of rdar://9037836 and rdar://9119939

Modified:
    dragonegg/trunk/src/Convert.cpp

Modified: dragonegg/trunk/src/Convert.cpp
URL: http://llvm.org/viewvc/llvm-project/dragonegg/trunk/src/Convert.cpp?rev=142529&r1=142528&r2=142529&view=diff
==============================================================================
--- dragonegg/trunk/src/Convert.cpp (original)
+++ dragonegg/trunk/src/Convert.cpp Wed Oct 19 08:25:38 2011
@@ -3217,6 +3217,10 @@
     }
   }
 
+  // If this constraint is multiple letters add a parsing helper prefix.
+  if (CONSTRAINT_LEN(*Constraint, Constraint) > 1)
+    Result += "^";
+
   while (*Constraint) {
     char ConstraintChar = *Constraint++;