gcc/rtl-error.c

   1 /* RTL specific diagnostic subroutines for GCC
   2    Copyright (C) 2001, 2002, 2003, 2004, 2007, 2008 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 3, 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 COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #include "config.h"
  22 #undef FLOAT /* This is for hpux. They should change hpux.  */
  23 #undef FFS  /* Some systems define this in param.h.  */
  24 #include "system.h"
  25 #include "coretypes.h"
  26 #include "tm.h"
  27 #include "rtl.h"
  28 #include "insn-attr.h"
  29 #include "insn-config.h"
  30 #include "input.h"
  31 #include "toplev.h"
  32 #include "intl.h"
  33 #include "diagnostic.h"
  34
  35 static location_t location_for_asm (const_rtx);
  36 static void diagnostic_for_asm (const_rtx, const char *, va_list *, diagnostic_t) ATTRIBUTE_GCC_DIAG(2,0);
  37
  38 /* Figure the location of the given INSN.  */
  39 static location_t
  40 location_for_asm (const_rtx insn)
  41 {
  42   rtx body = PATTERN (insn);
  43   rtx asmop;
  44   location_t loc;
  45
  46   /* Find the (or one of the) ASM_OPERANDS in the insn.  */
  47   if (GET_CODE (body) == SET && GET_CODE (SET_SRC (body)) == ASM_OPERANDS)
  48     asmop = SET_SRC (body);
  49   else if (GET_CODE (body) == ASM_OPERANDS)
  50     asmop = body;
  51   else if (GET_CODE (body) == PARALLEL
  52            && GET_CODE (XVECEXP (body, 0, 0)) == SET)
  53     asmop = SET_SRC (XVECEXP (body, 0, 0));
  54   else if (GET_CODE (body) == PARALLEL
  55            && GET_CODE (XVECEXP (body, 0, 0)) == ASM_OPERANDS)
  56     asmop = XVECEXP (body, 0, 0);
  57   else
  58     asmop = NULL;
  59
  60   if (asmop)
  61     loc = ASM_OPERANDS_SOURCE_LOCATION (asmop);
  62   else
  63     loc = input_location;
  64   return loc;
  65 }
  66
  67 /* Report a diagnostic MESSAGE (an errror or a WARNING) at the line number
  68    of the insn INSN.  This is used only when INSN is an `asm' with operands,
  69    and each ASM_OPERANDS records its own source file and line.  */
  70 static void
  71 diagnostic_for_asm (const_rtx insn, const char *msg, va_list *args_ptr,
  72                     diagnostic_t kind)
  73 {
  74   diagnostic_info diagnostic;
  75
  76   diagnostic_set_info (&diagnostic, msg, args_ptr,
  77                        location_for_asm (insn), kind);
  78   report_diagnostic (&diagnostic);
  79 }
  80
  81 void
  82 error_for_asm (const_rtx insn, const char *gmsgid, ...)
  83 {
  84   va_list ap;
  85
  86   va_start (ap, gmsgid);
  87   diagnostic_for_asm (insn, gmsgid, &ap, DK_ERROR);
  88   va_end (ap);
  89 }
  90
  91 void
  92 warning_for_asm (const_rtx insn, const char *gmsgid, ...)
  93 {
  94   va_list ap;
  95
  96   va_start (ap, gmsgid);
  97   diagnostic_for_asm (insn, gmsgid, &ap, DK_WARNING);
  98   va_end (ap);
  99 }
 100
 101 void
 102 _fatal_insn (const char *msgid, const_rtx insn, const char *file, int line,
 103              const char *function)
 104 {
 105   error ("%s", _(msgid));
 106
 107   /* The above incremented error_count, but isn't an error that we want to
 108      count, so reset it here.  */
 109   errorcount--;
 110
 111   debug_rtx (insn);
 112   fancy_abort (file, line, function);
 113 }
 114
 115 void
 116 _fatal_insn_not_found (const_rtx insn, const char *file, int line,
 117                        const char *function)
 118 {
 119   if (INSN_CODE (insn) < 0)
 120     _fatal_insn ("unrecognizable insn:", insn, file, line, function);
 121   else
 122     _fatal_insn ("insn does not satisfy its constraints:",
 123                 insn, file, line, function);
 124 }