gcc/rtl-error.c

   1 /* RTL specific diagnostic subroutines for the GNU C compiler
   2    Copyright (C) 2001 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 *, int));
  36
  37 /* Figure file and line of the given INSN.  */
  38 static void
  39 file_and_line_for_asm (insn, pfile, pline)
  40      rtx insn;
  41      const char **pfile;
  42      int *pline;
  43 {
  44   rtx body = PATTERN (insn);
  45   rtx asmop;
  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     {
  63       *pfile = ASM_OPERANDS_SOURCE_FILE (asmop);
  64       *pline = ASM_OPERANDS_SOURCE_LINE (asmop);
  65     }
  66   else
  67     {
  68       *pfile = input_filename;
  69       *pline = lineno;
  70     }
  71 }
  72
  73 /* Report a diagnostic MESSAGE (an errror or a WARNING) at the line number
  74    of the insn INSN.  This is used only when INSN is an `asm' with operands,
  75    and each ASM_OPERANDS records its own source file and line.  */
  76 static void
  77 diagnostic_for_asm (insn, msg, args_ptr, warn)
  78      rtx insn;
  79      const char *msg;
  80      va_list *args_ptr;
  81      int warn;
  82 {
  83   diagnostic_context dc;
  84
  85   set_diagnostic_context (&dc, msg, args_ptr, NULL, 0, warn);
  86   file_and_line_for_asm (insn, &diagnostic_file_location (&dc),
  87                          &diagnostic_line_location (&dc));
  88   report_diagnostic (&dc);
  89 }
  90
  91 void
  92 error_for_asm VPARAMS ((rtx insn, const char *msgid, ...))
  93 {
  94   VA_OPEN (ap, msgid);
  95   VA_FIXEDARG (ap, rtx, insn);
  96   VA_FIXEDARG (ap, const char *, msgid);
  97
  98   diagnostic_for_asm (insn, msgid, &ap, /* warn = */ 0);
  99   VA_CLOSE (ap);
 100 }
 101
 102 void
 103 warning_for_asm VPARAMS ((rtx insn, const char *msgid, ...))
 104 {
 105   VA_OPEN (ap, msgid);
 106   VA_FIXEDARG (ap, rtx, insn);
 107   VA_FIXEDARG (ap, const char *, msgid);
 108
 109   diagnostic_for_asm (insn, msgid, &ap, /* warn = */ 1);
 110   VA_CLOSE (ap);
 111 }
 112
 113 void
 114 _fatal_insn (msgid, insn, file, line, function)
 115      const char *msgid;
 116      rtx insn;
 117      const char *file;
 118      int line;
 119      const char *function;
 120 {
 121   error ("%s", _(msgid));
 122
 123   /* The above incremented error_count, but isn't an error that we want to
 124      count, so reset it here.  */
 125   errorcount--;
 126
 127   debug_rtx (insn);
 128   fancy_abort (file, line, function);
 129 }
 130
 131 void
 132 _fatal_insn_not_found (insn, file, line, function)
 133      rtx insn;
 134      const char *file;
 135      int line;
 136      const char *function;
 137 {
 138   if (INSN_CODE (insn) < 0)
 139     _fatal_insn ("Unrecognizable insn:", insn, file, line, function);
 140   else
 141     _fatal_insn ("Insn does not satisfy its constraints:",
 142                 insn, file, line, function);
 143 }
 144