gcc/rtl-error.c

   1 /* RTL specific diagnostic subroutines for GCC
   2    Copyright (C) 2001, 2002, 2003, 2004 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, 51 Franklin Street, Fifth Floor,
  20 Boston, MA 02110-1301, 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 "coretypes.h"
  27 #include "tm.h"
  28 #include "rtl.h"
  29 #include "insn-attr.h"
  30 #include "insn-config.h"
  31 #include "input.h"
  32 #include "toplev.h"
  33 #include "intl.h"
  34 #include "diagnostic.h"
  35
  36 static location_t location_for_asm (rtx);
  37 static void diagnostic_for_asm (rtx, const char *, va_list *, diagnostic_t);
  38
  39 /* Figure the location of the given INSN.  */
  40 static location_t
  41 location_for_asm (rtx insn)
  42 {
  43   rtx body = PATTERN (insn);
  44   rtx asmop;
  45   location_t loc;
  46
  47   /* Find the (or one of the) ASM_OPERANDS in the insn.  */
  48   if (GET_CODE (body) == SET && GET_CODE (SET_SRC (body)) == ASM_OPERANDS)
  49     asmop = SET_SRC (body);
  50   else if (GET_CODE (body) == ASM_OPERANDS)
  51     asmop = body;
  52   else if (GET_CODE (body) == PARALLEL
  53            && GET_CODE (XVECEXP (body, 0, 0)) == SET)
  54     asmop = SET_SRC (XVECEXP (body, 0, 0));
  55   else if (GET_CODE (body) == PARALLEL
  56            && GET_CODE (XVECEXP (body, 0, 0)) == ASM_OPERANDS)
  57     asmop = XVECEXP (body, 0, 0);
  58   else
  59     asmop = NULL;
  60
  61   if (asmop)
  62 #ifdef USE_MAPPED_LOCATION
  63     loc = ASM_OPERANDS_SOURCE_LOCATION (asmop);
  64 #else
  65     {
  66       loc.file = ASM_OPERANDS_SOURCE_FILE (asmop);
  67       loc.line = ASM_OPERANDS_SOURCE_LINE (asmop);
  68     }
  69 #endif
  70   else
  71     loc = input_location;
  72   return loc;
  73 }
  74
  75 /* Report a diagnostic MESSAGE (an errror or a WARNING) at the line number
  76    of the insn INSN.  This is used only when INSN is an `asm' with operands,
  77    and each ASM_OPERANDS records its own source file and line.  */
  78 static void
  79 diagnostic_for_asm (rtx insn, const char *msg, va_list *args_ptr,
  80                     diagnostic_t kind)
  81 {
  82   diagnostic_info diagnostic;
  83
  84   diagnostic_set_info (&diagnostic, msg, args_ptr,
  85                        location_for_asm (insn), kind);
  86   report_diagnostic (&diagnostic);
  87 }
  88
  89 void
  90 error_for_asm (rtx insn, const char *gmsgid, ...)
  91 {
  92   va_list ap;
  93
  94   va_start (ap, gmsgid);
  95   diagnostic_for_asm (insn, gmsgid, &ap, DK_ERROR);
  96   va_end (ap);
  97 }
  98
  99 void
 100 warning_for_asm (rtx insn, const char *gmsgid, ...)
 101 {
 102   va_list ap;
 103
 104   va_start (ap, gmsgid);
 105   diagnostic_for_asm (insn, gmsgid, &ap, DK_WARNING);
 106   va_end (ap);
 107 }
 108
 109 void
 110 _fatal_insn (const char *msgid, rtx insn, const char *file, int line,
 111              const char *function)
 112 {
 113   error ("%s", _(msgid));
 114
 115   /* The above incremented error_count, but isn't an error that we want to
 116      count, so reset it here.  */
 117   errorcount--;
 118
 119   debug_rtx (insn);
 120   fancy_abort (file, line, function);
 121 }
 122
 123 void
 124 _fatal_insn_not_found (rtx insn, const char *file, int line,
 125                        const char *function)
 126 {
 127   if (INSN_CODE (insn) < 0)
 128     _fatal_insn ("unrecognizable insn:", insn, file, line, function);
 129   else
 130     _fatal_insn ("insn does not satisfy its constraints:",
 131                 insn, file, line, function);
 132 }