/* Process machine description and calculate constant conditions.
- Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007
+ Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with GCC; see the file COPYING. If not, write to
- the Free Software Foundation, 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with GCC; see the file COPYING3. If not see
+ <http://www.gnu.org/licenses/>. */
/* In a machine description, all of the insn patterns - define_insn,
define_expand, define_split, define_peephole, define_peephole2 -
machine description file. */\n\
\n\
#include \"bconfig.h\"\n\
-#include \"insn-constants.h\"\n");
-
- puts ("\
+#include \"system.h\"\n\
+\n\
+/* It is necessary, but not entirely safe, to include the headers below\n\
+ in a generator program. As a defensive measure, don't do so when the\n\
+ table isn't going to have anything in it. */\n\
+#if GCC_VERSION >= 3001\n\
+\n\
/* Do not allow checking to confuse the issue. */\n\
#undef ENABLE_CHECKING\n\
#undef ENABLE_TREE_CHECKING\n\
#undef ENABLE_RTL_CHECKING\n\
#undef ENABLE_RTL_FLAG_CHECKING\n\
#undef ENABLE_GC_CHECKING\n\
-#undef ENABLE_GC_ALWAYS_COLLECT\n");
-
- puts ("\
-#include \"system.h\"\n\
+#undef ENABLE_GC_ALWAYS_COLLECT\n\
+\n\
#include \"coretypes.h\"\n\
#include \"tm.h\"\n\
+#include \"insn-constants.h\"\n\
#include \"rtl.h\"\n\
#include \"tm_p.h\"\n\
-#include \"function.h\"\n");
-
- puts ("\
+#include \"function.h\"\n\
+\n\
/* Fake - insn-config.h doesn't exist yet. */\n\
#define MAX_RECOG_OPERANDS 10\n\
#define MAX_DUP_OPERANDS 10\n\
-#define MAX_INSNS_PER_SPLIT 5\n");
-
- puts ("\
+#define MAX_INSNS_PER_SPLIT 5\n\
+\n\
#include \"regs.h\"\n\
#include \"recog.h\"\n\
#include \"real.h\"\n\
#include \"resource.h\"\n\
#include \"toplev.h\"\n\
#include \"reload.h\"\n\
-#include \"gensupport.h\"\n");
+#include \"tm-constrs.h\"\n");
if (saw_eh_return)
puts ("#define HAVE_eh_return 1");
/* Dummy external declarations. */\n\
extern rtx insn;\n\
extern rtx ins1;\n\
-extern rtx operands[];\n");
+extern rtx operands[];\n\
+\n\
+#endif /* gcc >= 3.0.1 */\n");
}
/* Write out one entry in the conditions table, using the data pointed
fputs (" { \"", stdout);
for (p = test->expr; *p; p++)
{
- if (*p == '\n')
- fputs ("\\n\\\n", stdout);
- else if (*p == '"')
- fputs ("\\\"", stdout);
- else
- putchar (*p);
+ switch (*p)
+ {
+ case '\n': fputs ("\\n\\", stdout); break;
+ case '\\':
+ case '\"': putchar ('\\'); break;
+ default: break;
+ }
+ putchar (*p);
}
- printf ("\",\n __builtin_constant_p ");
+ fputs ("\",\n __builtin_constant_p ", stdout);
print_c_condition (test->expr);
- printf ("\n ? (int) ");
+ fputs ("\n ? (int) ", stdout);
print_c_condition (test->expr);
- printf ("\n : -1 },\n");
+ fputs ("\n : -1 },\n", stdout);
return 1;
}
write_conditions (void)
{
puts ("\
+/* Structure definition duplicated from gensupport.h rather than\n\
+ drag in that file and its dependencies. */\n\
+struct c_test\n\
+{\n\
+ const char *expr;\n\
+ int value;\n\
+};\n\
+\n\
/* This table lists each condition found in the machine description.\n\
Each condition is mapped to its truth value (0 or 1), or -1 if that\n\
- cannot be calculated at compile time. */\n\
-\n\
-static const struct c_test insn_conditions[] = {\n \
-/* If we don't have __builtin_constant_p, or it's not acceptable in array\n\
+ cannot be calculated at compile time.\n\
+ If we don't have __builtin_constant_p, or it's not acceptable in array\n\
initializers, fall back to assuming that all conditions potentially\n\
vary at run time. It works in 3.0.1 and later; 3.0 only when not\n\
optimizing. */\n\
-#if GCC_VERSION >= 3001");
+\n\
+#if GCC_VERSION >= 3001\n\
+static const struct c_test insn_conditions[] = {\n");
traverse_c_tests (write_one_condition, 0);
- puts ("#endif\n};\n");
+ puts ("\n};\n#endif /* gcc >= 3.0.1 */\n");
}
/* Emit code which will convert the C-format table to a
static void
write_writer (void)
{
- puts ("int\nmain(void)\n{\n\
- unsigned int i;\n\
-\n\
- puts (\"(define_conditions [\");\n\
- for (i = 0; i < ARRAY_SIZE (insn_conditions); i++)\n\
- printf (\" (%d \\\"%s\\\")\\n\",\n\
- insn_conditions[i].value, insn_conditions[i].expr);\n\
- puts (\"])\");\n\
- fflush (stdout);\n\
- return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);\n}");
+ puts ("int\n"
+ "main(void)\n"
+ "{\n"
+ " unsigned int i;\n"
+ " const char *p;\n"
+ " puts (\"(define_conditions [\");\n"
+ "#if GCC_VERSION >= 3001\n"
+ " for (i = 0; i < ARRAY_SIZE (insn_conditions); i++)\n"
+ " {\n"
+ " printf (\" (%d \\\"\", insn_conditions[i].value);\n"
+ " for (p = insn_conditions[i].expr; *p; p++)\n"
+ " {\n"
+ " switch (*p)\n"
+ " {\n"
+ " case '\\\\':\n"
+ " case '\\\"': putchar ('\\\\'); break;\n"
+ " default: break;\n"
+ " }\n"
+ " putchar (*p);\n"
+ " }\n"
+ " puts (\"\\\")\");\n"
+ " }\n"
+ "#endif /* gcc >= 3.0.1 */\n"
+ " puts (\"])\");\n"
+ " fflush (stdout);\n"
+ "return ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE;\n"
+ "}");
}
int
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