xref: /netbsd-src/external/gpl3/gcc.old/dist/gcc/rtl-error.c (revision 796c32c94f6e154afc9de0f63da35c91bb739b45)
1 /* RTL specific diagnostic subroutines for GCC
2    Copyright (C) 2001-2015 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 #include "system.h"
23 #include "coretypes.h"
24 #include "tm.h"
25 #include "rtl-error.h"
26 #include "insn-attr.h"
27 #include "insn-config.h"
28 #include "input.h"
29 #include "intl.h"
30 #include "diagnostic.h"
31 
32 static location_t location_for_asm (const rtx_insn *);
33 static void diagnostic_for_asm (const rtx_insn *, const char *, va_list *,
34 				diagnostic_t) ATTRIBUTE_GCC_DIAG(2,0);
35 
36 /* Figure the location of the given INSN.  */
37 static location_t
38 location_for_asm (const rtx_insn *insn)
39 {
40   rtx body = PATTERN (insn);
41   rtx asmop;
42   location_t loc;
43 
44   /* Find the (or one of the) ASM_OPERANDS in the insn.  */
45   if (GET_CODE (body) == SET && GET_CODE (SET_SRC (body)) == ASM_OPERANDS)
46     asmop = SET_SRC (body);
47   else if (GET_CODE (body) == ASM_OPERANDS)
48     asmop = body;
49   else if (GET_CODE (body) == PARALLEL
50 	   && GET_CODE (XVECEXP (body, 0, 0)) == SET)
51     asmop = SET_SRC (XVECEXP (body, 0, 0));
52   else if (GET_CODE (body) == PARALLEL
53 	   && GET_CODE (XVECEXP (body, 0, 0)) == ASM_OPERANDS)
54     asmop = XVECEXP (body, 0, 0);
55   else
56     asmop = NULL;
57 
58   if (asmop)
59     loc = ASM_OPERANDS_SOURCE_LOCATION (asmop);
60   else
61     loc = input_location;
62   return loc;
63 }
64 
65 /* Report a diagnostic MESSAGE (an error or a WARNING) at the line number
66    of the insn INSN.  This is used only when INSN is an `asm' with operands,
67    and each ASM_OPERANDS records its own source file and line.  */
68 static void
69 diagnostic_for_asm (const rtx_insn *insn, const char *msg, va_list *args_ptr,
70 		    diagnostic_t kind)
71 {
72   diagnostic_info diagnostic;
73 
74   diagnostic_set_info (&diagnostic, msg, args_ptr,
75 		       location_for_asm (insn), kind);
76   report_diagnostic (&diagnostic);
77 }
78 
79 void
80 error_for_asm (const rtx_insn *insn, const char *gmsgid, ...)
81 {
82   va_list ap;
83 
84   va_start (ap, gmsgid);
85   diagnostic_for_asm (insn, gmsgid, &ap, DK_ERROR);
86   va_end (ap);
87 }
88 
89 void
90 warning_for_asm (const rtx_insn *insn, const char *gmsgid, ...)
91 {
92   va_list ap;
93 
94   va_start (ap, gmsgid);
95   diagnostic_for_asm (insn, gmsgid, &ap, DK_WARNING);
96   va_end (ap);
97 }
98 
99 void
100 _fatal_insn (const char *msgid, const_rtx insn, const char *file, int line,
101 	     const char *function)
102 {
103   error ("%s", _(msgid));
104 
105   /* The above incremented error_count, but isn't an error that we want to
106      count, so reset it here.  */
107   errorcount--;
108 
109   debug_rtx (insn);
110   fancy_abort (file, line, function);
111 }
112 
113 void
114 _fatal_insn_not_found (const_rtx insn, const char *file, int line,
115 		       const char *function)
116 {
117   if (INSN_CODE (insn) < 0)
118     _fatal_insn ("unrecognizable insn:", insn, file, line, function);
119   else
120     _fatal_insn ("insn does not satisfy its constraints:",
121 		insn, file, line, function);
122 }
123