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 GNU CC.
   6
   7 GNU CC 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 GNU CC 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 GNU CC; 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 #ifndef ANSI_PROTOTYPES
  95   rtx insn;
  96   const char *msgid;
  97 #endif
  98   va_list ap;
  99
 100   VA_START (ap, msgid);
 101
 102 #ifndef ANSI_PROTOTYPES
 103   insn = va_arg (ap, rtx);
 104   msgid = va_arg (ap, const char *);
 105 #endif
 106
 107   diagnostic_for_asm (insn, msgid, &ap, /* warn = */ 0);
 108   va_end (ap);
 109 }
 110
 111 void
 112 warning_for_asm VPARAMS ((rtx insn, const char *msgid, ...))
 113 {
 114 #ifndef ANSI_PROTOTYPES
 115   rtx insn;
 116   const char *msgid;
 117 #endif
 118   va_list ap;
 119
 120   VA_START (ap, msgid);
 121
 122 #ifndef ANSI_PROTOTYPES
 123   insn = va_arg (ap, rtx);
 124   msgid = va_arg (ap, const char *);
 125 #endif
 126
 127   diagnostic_for_asm (insn, msgid, &ap, /* warn = */ 1);
 128   va_end (ap);
 129 }
 130
 131 void
 132 _fatal_insn (msgid, insn, file, line, function)
 133      const char *msgid;
 134      rtx insn;
 135      const char *file;
 136      int line;
 137      const char *function;
 138 {
 139   error ("%s", _(msgid));
 140
 141   /* The above incremented error_count, but isn't an error that we want to
 142      count, so reset it here.  */
 143   errorcount--;
 144
 145   debug_rtx (insn);
 146   fancy_abort (file, line, function);
 147 }
 148
 149 void
 150 _fatal_insn_not_found (insn, file, line, function)
 151      rtx insn;
 152      const char *file;
 153      int line;
 154      const char *function;
 155 {
 156   if (INSN_CODE (insn) < 0)
 157     _fatal_insn ("Unrecognizable insn:", insn, file, line, function);
 158   else
 159     _fatal_insn ("Insn does not satisfy its constraints:",
 160                 insn, file, line, function);
 161 }
 162