For PR797:

Rid the Assembly Parser of exceptions. This is a really gross hack but it
will do until the Assembly Parser is re-written as a recursive descent.
The basic premise is that wherever the old "ThrowException" function was
called (new name: GenerateError) we set a flag (TriggerError). Every
production checks that flag and calls YYERROR if it is set. Additionally,
each call to ThrowException in the grammar is replaced with GEN_ERROR
which calls GenerateError and then YYERROR immediately. This prevents
the remaining production from continuing after an error condition.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29763 91177308-0d34-0410-b5e6-96231b3b80d8

14 files changed, 4781 insertions, 3308 deletions

diff --git a/include/llvm/Assembly/Parser.h b/include/llvm/Assembly/Parser.h
index 39a622b286..bc7995eb6f 100644
--- a/include/llvm/Assembly/Parser.h
+++ b/include/llvm/Assembly/Parser.h
@@ -19,30 +19,45 @@
 namespace llvm {
 
 class Module;
-class ParseException;
-
-
-// The useful interface defined by this file... Parse an ascii file, and return
-// the internal representation in a nice slice'n'dice'able representation.  Note
-// that this does not verify that the generated LLVM is valid, so you should run
-// the verifier after parsing the file to check that it's ok.
-//
-Module *ParseAssemblyFile(const std::string &Filename);// throw (ParseException)
-Module *ParseAssemblyString(const char * AsmString, Module * M);// throw (ParseException)
+class ParseError;
+
+
+/// This function is the main interface to the LLVM Assembly Parse. It parses 
+/// an ascii file that (presumably) contains LLVM Assembly code. It returns a
+/// Module (intermediate representation) with the corresponding features. Note
+/// that this does not verify that the generated Module is valid, so you should
+/// run the verifier after parsing the file to check that it is okay.
+/// @brief Parse LLVM Assembly from a file
+Module *ParseAssemblyFile(
+  const std::string &Filename, ///< The name of the file to parse
+  ParseError* Error = 0        ///< If not null, an object to return errors in.
+);
+
+/// The function is a secondary interface to the LLVM Assembly Parse. It parses 
+/// an ascii string that (presumably) contains LLVM Assembly code. It returns a
+/// Module (intermediate representation) with the corresponding features. Note
+/// that this does not verify that the generated Module is valid, so you should
+/// run the verifier after parsing the file to check that it is okay.
+/// @brief Parse LLVM Assembly from a string
+Module *ParseAssemblyString(
+  const char * AsmString, ///< The string containing assembly
+  Module * M,             ///< A module to add the assembly too.
+  ParseError* Error = 0   ///< If not null, an object to return errors in.
+);
 
 //===------------------------------------------------------------------------===
 //                              Helper Classes
 //===------------------------------------------------------------------------===
 
-// ParseException - For when an exceptional event is generated by the parser.
-// This class lets you print out the exception message
-//
-class ParseException {
+/// An instance of this class can be passed to ParseAssemblyFile or 
+/// ParseAssemblyString functions in order to capture error information from
+/// the parser.  It provides a standard way to print out the error message
+/// including the file name and line number where the error occurred.
+/// @brief An LLVM Assembly Parsing Error Object
+class ParseError {
 public:
-  ParseException(const std::string &filename, const std::string &message,
-                 int LineNo = -1, int ColNo = -1);
-
-  ParseException(const ParseException &E);
+  ParseError() : Filename("unknown"), Message("none"), LineNo(0), ColumnNo(0) {}
+  ParseError(const ParseError &E);
 
   // getMessage - Return the message passed in at construction time plus extra
   // information extracted from the options used to parse with...
@@ -57,6 +72,9 @@ public:
     return Filename;
   }
 
+  void setError(const std::string &filename, const std::string &message,
+                 int LineNo = -1, int ColNo = -1);
+
   // getErrorLocation - Return the line and column number of the error in the
   // input source file.  The source filename can be derived from the
   // ParserOptions in effect.  If positional information is not applicable,
@@ -71,7 +89,7 @@ private :
   std::string Message;
   int LineNo, ColumnNo;                               // -1 if not relevant
 
-  ParseException &operator=(const ParseException &E); // objects by reference
+  ParseError &operator=(const ParseError &E); // objects by reference
 };
 
 } // End llvm namespace
diff --git a/lib/AsmParser/Lexer.cpp.cvs b/lib/AsmParser/Lexer.cpp.cvs
index a76a502a66..2adb5cc58c 100644
--- a/lib/AsmParser/Lexer.cpp.cvs
+++ b/lib/AsmParser/Lexer.cpp.cvs
@@ -17,7 +17,7 @@
 #define yylineno llvmAsmlineno
 
 #line 20 "Lexer.cpp"
-/* A lexical scanner generated by flex */
+/* A lexical scanner generated by flex*/
 
 /* Scanner skeleton version:
  * $Header$
@@ -28,6 +28,7 @@
 #define YY_FLEX_MINOR_VERSION 5
 
 #include <stdio.h>
+#include <unistd.h>
 
 
 /* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
@@ -41,7 +42,6 @@
 #ifdef __cplusplus
 
 #include <stdlib.h>
-#include <unistd.h>
 
 /* Use prototypes in function declarations. */
 #define YY_USE_PROTOS
@@ -153,6 +153,15 @@ extern FILE *yyin, *yyout;
 
 #define unput(c) yyunput( c, yytext_ptr )
 
+/* Some routines like yy_flex_realloc() are emitted as static but are
+   not called by all lexers. This generates warnings in some compilers,
+   notably GCC. Arrange to suppress these. */
+#ifdef __GNUC__
+#define YY_MAY_BE_UNUSED __attribute__((unused))
+#else
+#define YY_MAY_BE_UNUSED
+#endif
+
 /* The following is because we cannot portably get our hands on size_t
  * (without autoconf's help, which isn't available because we want
  * flex-generated scanners to compile on their own).
@@ -259,7 +268,7 @@ YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *yy_str ));
 YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len ));
 
 static void *yy_flex_alloc YY_PROTO(( yy_size_t ));
-static inline void *yy_flex_realloc YY_PROTO(( void *, yy_size_t ));
+static inline void *yy_flex_realloc YY_PROTO(( void *, yy_size_t )) YY_MAY_BE_UNUSED;
 static void yy_flex_free YY_PROTO(( void * ));
 
 #define yy_new_buffer yy_create_buffer
@@ -783,7 +792,7 @@ goto find_rule; \
 #define YY_MORE_ADJ 0
 #define YY_RESTORE_YY_MORE_OFFSET
 char *yytext;
-#line 1 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 1 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 #define INITIAL 0
 /*===-- Lexer.l - Scanner for llvm assembly files --------------*- C++ -*--===//
 //
@@ -798,7 +807,7 @@ char *yytext;
 //
 //===----------------------------------------------------------------------===*/
 #define YY_NEVER_INTERACTIVE 1
-#line 28 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 28 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 #include "ParserInternals.h"
 #include "llvm/Module.h"
 #include <list>
@@ -833,7 +842,7 @@ static uint64_t atoull(const char *Buffer) {
     Result *= 10;
     Result += *Buffer-'0';
     if (Result < OldRes)   // Uh, oh, overflow detected!!!
-      ThrowException("constant bigger than 64 bits detected!");
+      GenerateError("constant bigger than 64 bits detected!");
   }
   return Result;
 }
@@ -852,7 +861,7 @@ static uint64_t HexIntToVal(const char *Buffer) {
       Result += C-'a'+10;
 
     if (Result < OldRes)   // Uh, oh, overflow detected!!!
-      ThrowException("constant bigger than 64 bits detected!");
+      GenerateError("constant bigger than 64 bits detected!");
   }
   return Result;
 }
@@ -890,7 +899,7 @@ char *UnEscapeLexed(char *Buffer, bool AllowNull) {
       char Tmp = BIn[3]; BIn[3] = 0;     // Terminate string
       *BOut = (char)strtol(BIn+1, 0, 16);  // Convert to number
       if (!AllowNull && !*BOut)
-        ThrowException("String literal cannot accept \\00 escape!");
+        GenerateError("String literal cannot accept \\00 escape!");
 
       BIn[3] = Tmp;                  // Restore character
       BIn += 3;                      // Skip over handled chars
@@ -924,7 +933,7 @@ using namespace llvm;
 /* HexIntConstant - Hexadecimal constant generated by the CFE to avoid forcing
  * it to deal with 64 bit numbers.
  */
-#line 928 "Lexer.cpp"
+#line 937 "Lexer.cpp"
 
 /* Macros after this point can all be overridden by user definitions in
  * section 1.
@@ -1072,13 +1081,13 @@ YY_MALLOC_DECL
 YY_DECL
 	{
 	register yy_state_type yy_current_state;
-	register char *yy_cp, *yy_bp;
+	register char *yy_cp = NULL, *yy_bp = NULL;
 	register int yy_act;
 
-#line 179 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 179 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 
 
-#line 1082 "Lexer.cpp"
+#line 1091 "Lexer.cpp"
 
 	if ( yy_init )
 		{
@@ -1171,477 +1180,477 @@ do_action:	/* This label is used only to access EOF actions. */
 	{ /* beginning of action switch */
 case 1:
 YY_RULE_SETUP
-#line 181 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 181 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { /* Ignore comments for now */ }
 	YY_BREAK
 case 2:
 YY_RULE_SETUP
-#line 183 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 183 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return BEGINTOK; }
 	YY_BREAK
 case 3:
 YY_RULE_SETUP
-#line 184 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 184 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return ENDTOK; }
 	YY_BREAK
 case 4:
 YY_RULE_SETUP
-#line 185 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 185 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return TRUETOK;  }
 	YY_BREAK
 case 5:
 YY_RULE_SETUP
-#line 186 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 186 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return FALSETOK; }
 	YY_BREAK
 case 6:
 YY_RULE_SETUP
-#line 187 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 187 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return DECLARE; }
 	YY_BREAK
 case 7:
 YY_RULE_SETUP
-#line 188 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 188 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return GLOBAL; }
 	YY_BREAK
 case 8:
 YY_RULE_SETUP
-#line 189 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 189 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return CONSTANT; }
 	YY_BREAK
 case 9:
 YY_RULE_SETUP
-#line 190 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 190 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return INTERNAL; }
 	YY_BREAK
 case 10:
 YY_RULE_SETUP
-#line 191 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 191 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return LINKONCE; }
 	YY_BREAK
 case 11:
 YY_RULE_SETUP
-#line 192 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 192 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return WEAK; }
 	YY_BREAK
 case 12:
 YY_RULE_SETUP
-#line 193 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 193 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return APPENDING; }
 	YY_BREAK
 case 13:
 YY_RULE_SETUP
-#line 194 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 194 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return EXTERNAL; }    /* Deprecated, turn into external */
 	YY_BREAK
 case 14:
 YY_RULE_SETUP
-#line 195 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 195 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return EXTERNAL; }
 	YY_BREAK
 case 15:
 YY_RULE_SETUP
-#line 196 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 196 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return IMPLEMENTATION; }
 	YY_BREAK
 case 16:
 YY_RULE_SETUP
-#line 197 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 197 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return ZEROINITIALIZER; }
 	YY_BREAK
 case 17:
 YY_RULE_SETUP
-#line 198 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 198 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return DOTDOTDOT; }
 	YY_BREAK
 case 18:
 YY_RULE_SETUP
-#line 199 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 199 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return UNDEF; }
 	YY_BREAK
 case 19:
 YY_RULE_SETUP
-#line 200 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 200 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return NULL_TOK; }
 	YY_BREAK
 case 20:
 YY_RULE_SETUP
-#line 201 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 201 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return TO; }
 	YY_BREAK
 case 21:
 YY_RULE_SETUP
-#line 202 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 202 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(TermOpVal, Unwind, UNWIND); }
 	YY_BREAK
 case 22:
 YY_RULE_SETUP
-#line 203 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 203 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return NOT; }  /* Deprecated, turned into XOR */
 	YY_BREAK
 case 23:
 YY_RULE_SETUP
-#line 204 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 204 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return TAIL; }
 	YY_BREAK
 case 24:
 YY_RULE_SETUP
-#line 205 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 205 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return TARGET; }
 	YY_BREAK
 case 25:
 YY_RULE_SETUP
-#line 206 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 206 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return TRIPLE; }
 	YY_BREAK
 case 26:
 YY_RULE_SETUP
-#line 207 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 207 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return DEPLIBS; }
 	YY_BREAK
 case 27:
 YY_RULE_SETUP
-#line 208 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 208 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return ENDIAN; }
 	YY_BREAK
 case 28:
 YY_RULE_SETUP
-#line 209 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 209 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return POINTERSIZE; }
 	YY_BREAK
 case 29:
 YY_RULE_SETUP
-#line 210 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 210 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return LITTLE; }
 	YY_BREAK
 case 30:
 YY_RULE_SETUP
-#line 211 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 211 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return BIG; }
 	YY_BREAK
 case 31:
 YY_RULE_SETUP
-#line 212 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 212 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return VOLATILE; }
 	YY_BREAK
 case 32:
 YY_RULE_SETUP
-#line 213 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 213 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return ALIGN;  }
 	YY_BREAK
 case 33:
 YY_RULE_SETUP
-#line 214 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 214 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return SECTION; }
 	YY_BREAK
 case 34:
 YY_RULE_SETUP
-#line 215 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 215 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return MODULE; }
 	YY_BREAK
 case 35:
 YY_RULE_SETUP
-#line 216 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 216 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return ASM_TOK; }
 	YY_BREAK
 case 36:
 YY_RULE_SETUP
-#line 217 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 217 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return SIDEEFFECT; }
 	YY_BREAK
 case 37:
 YY_RULE_SETUP
-#line 219 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 219 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return CC_TOK; }
 	YY_BREAK
 case 38:
 YY_RULE_SETUP
-#line 220 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 220 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return CCC_TOK; }
 	YY_BREAK
 case 39:
 YY_RULE_SETUP
-#line 221 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 221 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return CSRETCC_TOK; }
 	YY_BREAK
 case 40:
 YY_RULE_SETUP
-#line 222 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 222 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return FASTCC_TOK; }
 	YY_BREAK
 case 41:
 YY_RULE_SETUP
-#line 223 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 223 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return COLDCC_TOK; }
 	YY_BREAK
 case 42:
 YY_RULE_SETUP
-#line 225 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 225 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::VoidTy  ; return VOID;   }
 	YY_BREAK
 case 43:
 YY_RULE_SETUP
-#line 226 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 226 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::BoolTy  ; return BOOL;   }
 	YY_BREAK
 case 44:
 YY_RULE_SETUP
-#line 227 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 227 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::SByteTy ; return SBYTE;  }
 	YY_BREAK
 case 45:
 YY_RULE_SETUP
-#line 228 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 228 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::UByteTy ; return UBYTE;  }
 	YY_BREAK
 case 46:
 YY_RULE_SETUP
-#line 229 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 229 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::ShortTy ; return SHORT;  }
 	YY_BREAK
 case 47:
 YY_RULE_SETUP
-#line 230 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 230 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::UShortTy; return USHORT; }
 	YY_BREAK
 case 48:
 YY_RULE_SETUP
-#line 231 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 231 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::IntTy   ; return INT;    }
 	YY_BREAK
 case 49:
 YY_RULE_SETUP
-#line 232 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 232 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::UIntTy  ; return UINT;   }
 	YY_BREAK
 case 50:
 YY_RULE_SETUP
-#line 233 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 233 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::LongTy  ; return LONG;   }
 	YY_BREAK
 case 51:
 YY_RULE_SETUP
-#line 234 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 234 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::ULongTy ; return ULONG;  }
 	YY_BREAK
 case 52:
 YY_RULE_SETUP
-#line 235 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 235 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::FloatTy ; return FLOAT;  }
 	YY_BREAK
 case 53:
 YY_RULE_SETUP
-#line 236 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 236 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::DoubleTy; return DOUBLE; }
 	YY_BREAK
 case 54:
 YY_RULE_SETUP
-#line 237 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 237 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.PrimType = Type::LabelTy ; return LABEL;  }
 	YY_BREAK
 case 55:
 YY_RULE_SETUP
-#line 238 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 238 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return TYPE;   }
 	YY_BREAK
 case 56:
 YY_RULE_SETUP
-#line 239 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 239 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return OPAQUE; }
 	YY_BREAK
 case 57:
 YY_RULE_SETUP
-#line 241 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 241 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, Add, ADD); }
 	YY_BREAK
 case 58:
 YY_RULE_SETUP
-#line 242 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 242 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, Sub, SUB); }
 	YY_BREAK
 case 59:
 YY_RULE_SETUP
-#line 243 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 243 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, Mul, MUL); }
 	YY_BREAK
 case 60:
 YY_RULE_SETUP
-#line 244 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 244 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, Div, DIV); }
 	YY_BREAK
 case 61:
 YY_RULE_SETUP
-#line 245 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 245 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, Rem, REM); }
 	YY_BREAK
 case 62:
 YY_RULE_SETUP
-#line 246 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 246 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, And, AND); }
 	YY_BREAK
 case 63:
 YY_RULE_SETUP
-#line 247 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 247 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, Or , OR ); }
 	YY_BREAK
 case 64:
 YY_RULE_SETUP
-#line 248 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 248 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, Xor, XOR); }
 	YY_BREAK
 case 65:
 YY_RULE_SETUP
-#line 249 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 249 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, SetNE, SETNE); }
 	YY_BREAK
 case 66:
 YY_RULE_SETUP
-#line 250 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 250 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, SetEQ, SETEQ); }
 	YY_BREAK
 case 67:
 YY_RULE_SETUP
-#line 251 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 251 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, SetLT, SETLT); }
 	YY_BREAK
 case 68:
 YY_RULE_SETUP
-#line 252 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 252 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, SetGT, SETGT); }
 	YY_BREAK
 case 69:
 YY_RULE_SETUP
-#line 253 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 253 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, SetLE, SETLE); }
 	YY_BREAK
 case 70:
 YY_RULE_SETUP
-#line 254 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 254 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(BinaryOpVal, SetGE, SETGE); }
 	YY_BREAK
 case 71:
 YY_RULE_SETUP
-#line 256 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 256 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(OtherOpVal, PHI, PHI_TOK); }
 	YY_BREAK
 case 72:
 YY_RULE_SETUP
-#line 257 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 257 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(OtherOpVal, Call, CALL); }
 	YY_BREAK
 case 73:
 YY_RULE_SETUP
-#line 258 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 258 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(OtherOpVal, Cast, CAST); }
 	YY_BREAK
 case 74:
 YY_RULE_SETUP
-#line 259 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 259 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(OtherOpVal, Select, SELECT); }
 	YY_BREAK
 case 75:
 YY_RULE_SETUP
-#line 260 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 260 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(OtherOpVal, Shl, SHL); }
 	YY_BREAK
 case 76:
 YY_RULE_SETUP
-#line 261 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 261 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(OtherOpVal, Shr, SHR); }
 	YY_BREAK
 case 77:
 YY_RULE_SETUP
-#line 262 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 262 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return VANEXT_old; }
 	YY_BREAK
 case 78:
 YY_RULE_SETUP
-#line 263 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 263 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return VAARG_old; }
 	YY_BREAK
 case 79:
 YY_RULE_SETUP
-#line 264 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 264 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(OtherOpVal, VAArg , VAARG); }
 	YY_BREAK
 case 80:
 YY_RULE_SETUP
-#line 265 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 265 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(TermOpVal, Ret, RET); }
 	YY_BREAK
 case 81:
 YY_RULE_SETUP
-#line 266 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 266 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(TermOpVal, Br, BR); }
 	YY_BREAK
 case 82:
 YY_RULE_SETUP
-#line 267 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 267 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(TermOpVal, Switch, SWITCH); }
 	YY_BREAK
 case 83:
 YY_RULE_SETUP
-#line 268 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 268 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(TermOpVal, Invoke, INVOKE); }
 	YY_BREAK
 case 84:
 YY_RULE_SETUP
-#line 269 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 269 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(TermOpVal, Unwind, UNWIND); }
 	YY_BREAK
 case 85:
 YY_RULE_SETUP
-#line 270 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 270 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(TermOpVal, Unreachable, UNREACHABLE); }
 	YY_BREAK
 case 86:
 YY_RULE_SETUP
-#line 272 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 272 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(MemOpVal, Malloc, MALLOC); }
 	YY_BREAK
 case 87:
 YY_RULE_SETUP
-#line 273 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 273 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(MemOpVal, Alloca, ALLOCA); }
 	YY_BREAK
 case 88:
 YY_RULE_SETUP
-#line 274 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 274 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(MemOpVal, Free, FREE); }
 	YY_BREAK
 case 89:
 YY_RULE_SETUP
-#line 275 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 275 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(MemOpVal, Load, LOAD); }
 	YY_BREAK
 case 90:
 YY_RULE_SETUP
-#line 276 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 276 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(MemOpVal, Store, STORE); }
 	YY_BREAK
 case 91:
 YY_RULE_SETUP
-#line 277 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 277 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(MemOpVal, GetElementPtr, GETELEMENTPTR); }
 	YY_BREAK
 case 92:
 YY_RULE_SETUP
-#line 279 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 279 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(OtherOpVal, ExtractElement, EXTRACTELEMENT); }
 	YY_BREAK
 case 93:
 YY_RULE_SETUP
-#line 280 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 280 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(OtherOpVal, InsertElement, INSERTELEMENT); }
 	YY_BREAK
 case 94:
 YY_RULE_SETUP
-#line 281 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 281 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { RET_TOK(OtherOpVal, ShuffleVector, SHUFFLEVECTOR); }
 	YY_BREAK
 case 95:
 YY_RULE_SETUP
-#line 284 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 284 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 {
                   UnEscapeLexed(yytext+1);
                   llvmAsmlval.StrVal = strdup(yytext+1);             // Skip %
@@ -1650,7 +1659,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 96:
 YY_RULE_SETUP
-#line 289 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 289 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 {
                   yytext[strlen(yytext)-1] = 0;  // nuke colon
                   UnEscapeLexed(yytext);
@@ -1660,7 +1669,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 97:
 YY_RULE_SETUP
-#line 295 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 295 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 {
                   yytext[strlen(yytext)-2] = 0;  // nuke colon, end quote
                   UnEscapeLexed(yytext+1);
@@ -1670,7 +1679,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 98:
 YY_RULE_SETUP
-#line 302 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 302 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { // Note that we cannot unescape a string constant here!  The
                    // string constant might contain a \00 which would not be
                    // understood by the string stuff.  It is valid to make a
@@ -1683,24 +1692,24 @@ YY_RULE_SETUP
 	YY_BREAK
 case 99:
 YY_RULE_SETUP
-#line 313 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 313 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.UInt64Val = atoull(yytext); return EUINT64VAL; }
 	YY_BREAK
 case 100:
 YY_RULE_SETUP
-#line 314 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 314 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 {
                   uint64_t Val = atoull(yytext+1);
                   // +1:  we have bigger negative range
                   if (Val > (uint64_t)INT64_MAX+1)
-                    ThrowException("Constant too large for signed 64 bits!");
+                    GenerateError("Constant too large for signed 64 bits!");
                   llvmAsmlval.SInt64Val = -Val;
                   return ESINT64VAL;
                 }
 	YY_BREAK
 case 101:
 YY_RULE_SETUP
-#line 322 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 322 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 {
                    llvmAsmlval.UInt64Val = HexIntToVal(yytext+3);
                    return yytext[0] == 's' ? ESINT64VAL : EUINT64VAL;
@@ -1708,39 +1717,39 @@ YY_RULE_SETUP
 	YY_BREAK
 case 102:
 YY_RULE_SETUP
-#line 327 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 327 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 {
                   uint64_t Val = atoull(yytext+1);
                   if ((unsigned)Val != Val)
-                    ThrowException("Invalid value number (too large)!");
+                    GenerateError("Invalid value number (too large)!");
                   llvmAsmlval.UIntVal = unsigned(Val);
                   return UINTVAL;
                 }
 	YY_BREAK
 case 103:
 YY_RULE_SETUP
-#line 334 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 334 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 {
                   uint64_t Val = atoull(yytext+2);
                   // +1:  we have bigger negative range
                   if (Val > (uint64_t)INT32_MAX+1)
-                    ThrowException("Constant too large for signed 32 bits!");
+                    GenerateError("Constant too large for signed 32 bits!");
                   llvmAsmlval.SIntVal = (int)-Val;
                   return SINTVAL;
                 }
 	YY_BREAK
 case 104:
 YY_RULE_SETUP
-#line 343 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 343 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.FPVal = atof(yytext); return FPVAL; }
 	YY_BREAK
 case 105:
 YY_RULE_SETUP
-#line 344 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 344 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { llvmAsmlval.FPVal = HexToFP(yytext); return FPVAL; }
 	YY_BREAK
 case YY_STATE_EOF(INITIAL):
-#line 346 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 346 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 {
                   /* Make sure to free the internal buffers for flex when we are
                    * done reading our input!
@@ -1751,20 +1760,20 @@ case YY_STATE_EOF(INITIAL):
 	YY_BREAK
 case 106:
 YY_RULE_SETUP
-#line 354 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 354 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { /* Ignore whitespace */ }
 	YY_BREAK
 case 107:
 YY_RULE_SETUP
-#line 355 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 355 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 { return yytext[0]; }
 	YY_BREAK
 case 108:
 YY_RULE_SETUP
-#line 357 "/Volumes/Projects/cvs/llvm/lib/AsmParser/Lexer.l"
+#line 357 "/proj/llvm/llvm/lib/AsmParser/Lexer.l"
 YY_FATAL_ERROR( "flex scanner jammed" );
 	YY_BREAK
-#line 1768 "Lexer.cpp"
+#line 1777 "Lexer.cpp"
 
 	case YY_END_OF_BUFFER:
 		{
@@ -2140,6 +2149,7 @@ register char *yy_bp;
 #endif	/* ifndef YY_NO_UNPUT */
 
 
+#ifndef YY_NO_INPUT
 #ifdef __cplusplus
 static int yyinput()
 #else
@@ -2186,7 +2196,7 @@ static int input()
 				case EOB_ACT_END_OF_FILE:
 					{
 					if ( yywrap() )
-						return 0;
+						return EOF;
 
 					if ( ! yy_did_buffer_switch_on_eof )
 						YY_NEW_FILE;
@@ -2213,7 +2223,7 @@ static int input()
 
 	return c;
 	}
-
+#endif /* YY_NO_INPUT */
 
 #ifdef YY_USE_PROTOS
 void yyrestart( FILE *input_file )
@@ -2324,11 +2334,6 @@ YY_BUFFER_STATE b;
 	}
 
 
-#ifndef YY_ALWAYS_INTERACTIVE
-#ifndef YY_NEVER_INTERACTIVE
-extern int isatty YY_PROTO(( int ));
-#endif