gcc/rtl-error.c

   1 /* RTL specific diagnostic subroutines for the GNU C compiler
   2    Copyright (C) 2001, 2002 Free Software Foundation, Inc.
   3    Contributed by Gabriel Dos Reis <gdr@codesourcery.com>
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 #include "config.h"
  23 #undef FLOAT /* This is for hpux. They should change hpux.  */
  24 #undef FFS  /* Some systems define this in param.h.  */
  25 #include "system.h"
  26 #include "rtl.h"
  27 #include "insn-attr.h"
  28 #include "insn-config.h"
  29 #include "input.h"
  30 #include "toplev.h"
  31 #include "intl.h"
  32 #include "diagnostic.h"
  33
  34 static void file_and_line_for_asm PARAMS ((rtx, const char **, int *));
  35 static void diagnostic_for_asm PARAMS ((rtx, const char *, va_list *,
  36                                         diagnostic_t));
  37
  38 /* Figure file and line of the given INSN.  */
  39 static void
  40 file_and_line_for_asm (insn, pfile, pline)
  41      rtx insn;
  42      const char **pfile;
  43      int *pline;
  44 {
  45   rtx body = PATTERN (insn);
  46   rtx asmop;
  47
  48   /* Find the (or one of the) ASM_OPERANDS in the insn.  */
  49   if (GET_CODE (body) == SET && GET_CODE (SET_SRC (body)) == ASM_OPERANDS)
  50     asmop = SET_SRC (body);
  51   else if (GET_CODE (body) == ASM_OPERANDS)
  52     asmop = body;
  53   else if (GET_CODE (body) == PARALLEL
  54            && GET_CODE (XVECEXP (body, 0, 0)) == SET)
  55     asmop = SET_SRC (XVECEXP (body, 0, 0));
  56   else if (GET_CODE (body) == PARALLEL
  57            && GET_CODE (XVECEXP (body, 0, 0)) == ASM_OPERANDS)
  58     asmop = XVECEXP (body, 0, 0);
  59   else
  60     asmop = NULL;
  61
  62   if (asmop)
  63     {
  64       *pfile = ASM_OPERANDS_SOURCE_FILE (asmop);
  65       *pline = ASM_OPERANDS_SOURCE_LINE (asmop);
  66     }
  67   else
  68     {
  69       *pfile = input_filename;
  70       *pline = lineno;
  71     }
  72 }
  73
  74 /* Report a diagnostic MESSAGE (an errror or a WARNING) at the line number
  75    of the insn INSN.  This is used only when INSN is an `asm' with operands,
  76    and each ASM_OPERANDS records its own source file and line.  */
  77 static void
  78 diagnostic_for_asm (insn, msg, args_ptr, kind)
  79      rtx insn;
  80      const char *msg;
  81      va_list *args_ptr;
  82      diagnostic_t kind;
  83 {
  84   diagnostic_info diagnostic;
  85
  86   diagnostic_set_info (&diagnostic, msg, args_ptr, NULL, 0, kind);
  87   file_and_line_for_asm (insn, &diagnostic.location.file,
  88                          &diagnostic.location.line);
  89   report_diagnostic (&diagnostic);
  90 }
  91
  92 void
  93 error_for_asm VPARAMS ((rtx insn, const char *msgid, ...))
  94 {
  95   VA_OPEN (ap, msgid);
  96   VA_FIXEDARG (ap, rtx, insn);
  97   VA_FIXEDARG (ap, const char *, msgid);
  98
  99   diagnostic_for_asm (insn, msgid, &ap, DK_ERROR);
 100   VA_CLOSE (ap);
 101 }
 102
 103 void
 104 warning_for_asm VPARAMS ((rtx insn, const char *msgid, ...))
 105 {
 106   VA_OPEN (ap, msgid);
 107   VA_FIXEDARG (ap, rtx, insn);
 108   VA_FIXEDARG (ap, const char *, msgid);
 109
 110   diagnostic_for_asm (insn, msgid, &ap, DK_WARNING);
 111   VA_CLOSE (ap);
 112 }
 113
 114 void
 115 _fatal_insn (msgid, insn, file, line, function)
 116      const char *msgid;
 117      rtx insn;
 118      const char *file;
 119      int line;
 120      const char *function;
 121 {
 122   error ("%s", _(msgid));
 123
 124   /* The above incremented error_count, but isn't an error that we want to
 125      count, so reset it here.  */
 126   errorcount--;
 127
 128   debug_rtx (insn);
 129   fancy_abort (file, line, function);
 130 }
 131
 132 void
 133 _fatal_insn_not_found (insn, file, line, function)
 134      rtx insn;
 135      const char *file;
 136      int line;
 137      const char *function;
 138 {
 139   if (INSN_CODE (insn) < 0)
 140     _fatal_insn ("unrecognizable insn:", insn, file, line, function);
 141   else
 142     _fatal_insn ("insn does not satisfy its constraints:",
 143                 insn, file, line, function);
 144 }
 145