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Fix PR902:

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Errors are generated with the YYERROR macro which can only be called from
a production (inside yyparse) because of the goto statement in the macro.
This lead to several situations where GEN_ERROR was not called but
GenerateError was used instead (because it doesn't use YYERROR). However,
in such situations, catching the error much later (e.g. at the end of
the production) is not sufficient because LLVM can assert on invalid data
before the end of the production is reached. The solution is to ensure that
the CHECK_FOR_ERROR macro (which invokes YYERROR if there's an error) is
used as soon as possible after a call to GenerateError has been made.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30650 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2006-09-28 19:28:24 +00:00
parent 2a0b2b292a
commit 5b7e753d95
4 changed files with 1435 additions and 1306 deletions
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40
lib/AsmParser/llvmAsmParser.h.cvs
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@@ -1,9 +1,7 @@
/* A Bison parser, made by GNU Bison 2.2. */
/* A Bison parser, made by GNU Bison 2.1. */
/* Skeleton interface for Bison's Yacc-like parsers in C
Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
/* Skeleton parser for Yacc-like parsing with Bison,
Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -20,18 +18,10 @@
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
/* As a special exception, you may create a larger work that contains
part or all of the Bison parser skeleton and distribute that work
under terms of your choice, so long as that work isn't itself a
parser generator using the skeleton or a modified version thereof
as a parser skeleton. Alternatively, if you modify or redistribute
the parser skeleton itself, you may (at your option) remove this
special exception, which will cause the skeleton and the resulting
Bison output files to be licensed under the GNU General Public
License without this special exception.
This special exception was added by the Free Software Foundation in
version 2.2 of Bison. */
/* As a special exception, when this file is copied by Bison into a
Bison output file, you may use that output file without restriction.
This special exception was added by the Free Software Foundation
in version 1.24 of Bison. */
/* Tokens. */
#ifndef YYTOKENTYPE
@@ -256,10 +246,9 @@
#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
typedef union YYSTYPE
#line 913 "/home/asl/proj/llvm/src/lib/AsmParser/llvmAsmParser.y"
{
#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
#line 966 "/proj/llvm/llvm/lib/AsmParser/llvmAsmParser.y"
typedef union YYSTYPE {
llvm::Module *ModuleVal;
llvm::Function *FunctionVal;
std::pair<llvm::PATypeHolder*, char*> *ArgVal;
@@ -297,10 +286,9 @@ typedef union YYSTYPE
llvm::Instruction::MemoryOps MemOpVal;
llvm::Instruction::OtherOps OtherOpVal;
llvm::Module::Endianness Endianness;
}
/* Line 1528 of yacc.c. */
#line 303 "llvmAsmParser.tab.h"
YYSTYPE;
} YYSTYPE;
/* Line 1447 of yacc.c. */
#line 292 "llvmAsmParser.tab.h"
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
# define YYSTYPE_IS_TRIVIAL 1
@@ -308,3 +296,5 @@ typedef union YYSTYPE
extern YYSTYPE llvmAsmlval;