Add a new constructor to TargetData that builds a TargetData from its

string representation.

This is part of PR 761.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28234 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Target/TargetData.h

@@ -53,6 +53,13 @@ public:
              unsigned char IntAl   = 4, unsigned char ShortAl  = 2,
              unsigned char ByteAl  = 1, unsigned char BoolAl   = 1);
 
+  /// Constructs a TargetData from a string of the following format:
+  /// "E-p:64:64-d:64:64-f:32:32-l:64:64-i:32:32-s:16:16-b:8:8-B:8:8"
+  /// The above string is considered the default, and any values not specified
+  /// in the string will be assumed to be as above.
+  TargetData(const std::string &TargetName,
+             const std::string &TargetDescription);
+  
   // Copy constructor
   TargetData (const TargetData &TD) :
     ImmutablePass(),