/* Process machine description and calculate constant conditions.
- Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2001-2020 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 -
#include "tm.h"
#include "rtl.h"
#include "errors.h"
-#include "hashtab.h"
+#include "read-md.h"
#include "gensupport.h"
/* so we can include except.h in the generated file. */
/* Generated automatically by the program `genconditions' from the target\n\
machine description file. */\n\
\n\
+#define IN_TARGET_CODE 1\n\
#include \"bconfig.h\"\n\
-#include \"insn-constants.h\"\n");
-
- puts ("\
+#define INCLUDE_STRING\n\
+#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 CHECKING_P\n\
+#define CHECKING_P 0\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\
+#define USE_ENUM_MODES\n\
+\n\
#include \"coretypes.h\"\n\
#include \"tm.h\"\n\
+#include \"insn-constants.h\"\n\
#include \"rtl.h\"\n\
+#include \"memmodel.h\"\n\
#include \"tm_p.h\"\n\
-#include \"function.h\"\n");
-
- puts ("\
+#include \"hard-reg-set.h\"\n\
+#include \"function.h\"\n\
+#include \"emit-rtl.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 \"output.h\"\n\
#include \"flags.h\"\n\
#include \"hard-reg-set.h\"\n\
+#include \"predict.h\"\n\
+#include \"basic-block.h\"\n\
+#include \"bitmap.h\"\n\
+#include \"df.h\"\n\
#include \"resource.h\"\n\
-#include \"toplev.h\"\n\
+#include \"diagnostic-core.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");
puts ("\
/* Dummy external declarations. */\n\
-extern rtx insn;\n\
+extern rtx_insn *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
const struct c_test *test = * (const struct c_test **) slot;
const char *p;
- print_rtx_ptr_loc (test->expr);
+ rtx_reader_ptr->print_md_ptr_loc (test->expr);
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 ");
- print_c_condition (test->expr);
- printf ("\n ? (int) ");
- print_c_condition (test->expr);
- printf ("\n : -1 },\n");
+ fputs ("\",\n __builtin_constant_p ", stdout);
+ rtx_reader_ptr->print_c_condition (test->expr);
+ fputs ("\n ? (int) ", stdout);
+ rtx_reader_ptr->print_c_condition (test->expr);
+ 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
-main (int argc, char **argv)
+main (int argc, const char **argv)
{
- rtx desc;
- int pattern_lineno; /* not used */
- int code;
-
progname = "genconditions";
- if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
+ if (!init_rtx_reader_args (argc, argv))
return (FATAL_EXIT_CODE);
/* Read the machine description. */
- while (1)
+ md_rtx_info info;
+ while (read_md_rtx (&info))
{
- desc = read_md_rtx (&pattern_lineno, &code);
- if (desc == NULL)
- break;
-
- /* N.B. define_insn_and_split, define_cond_exec are handled
- entirely within read_md_rtx; we never see them. */
- switch (GET_CODE (desc))
+ rtx def = info.def;
+ add_c_test (get_c_test (def), -1);
+ switch (GET_CODE (def))
{
- default:
- break;
-
case DEFINE_INSN:
case DEFINE_EXPAND:
- add_c_test (XSTR (desc, 2), -1);
/* except.h needs to know whether there is an eh_return
pattern in the machine description. */
- if (!strcmp (XSTR (desc, 0), "eh_return"))
+ if (!strcmp (XSTR (def, 0), "eh_return"))
saw_eh_return = 1;
break;
- case DEFINE_SPLIT:
- case DEFINE_PEEPHOLE:
- case DEFINE_PEEPHOLE2:
- add_c_test (XSTR (desc, 1), -1);
+ default:
break;
}
}