2020-02-03 Bill Schmidt <wschm...@linux.ibm.com>
* config/rs6000/rs6000-genbif.c (write_autogenerated_header): New
function.
(write_bif_enum): New callback function.
(write_ovld_enum): New callback function.
(write_decls): New function.
(write_extern_fntype): New callback function.
(write_header_file): Implement.
---
gcc/config/rs6000/rs6000-genbif.c | 160 ++++++++++++++++++++++++++++++
1 file changed, 160 insertions(+)
diff --git a/gcc/config/rs6000/rs6000-genbif.c
b/gcc/config/rs6000/rs6000-genbif.c
index 0bcd035060d..c84df1aa30f 100644
--- a/gcc/config/rs6000/rs6000-genbif.c
+++ b/gcc/config/rs6000/rs6000-genbif.c
@@ -1617,10 +1617,170 @@ parse_ovld ()
return result;
}
+/* Write a comment at the top of FILE about how the code was generated. */
+static void
+write_autogenerated_header (FILE *file)
+{
+ fprintf (file, "/* Automatically generated by the program '%s'\n",
+ pgm_path);
+ fprintf (file, " from the files '%s' and '%s'. */\n\n",
+ bif_path, ovld_path);
+}
+
+/* Callback functions used in creating enumerations. */
+void write_bif_enum (char *str)
+{
+ fprintf (header_file, " RS6000_BIF_%s,\n", str);
+}
+
+void write_ovld_enum (char *str)
+{
+ fprintf (header_file, " RS6000_OVLD_%s,\n", str);
+}
+
+/* Write declarations into the header file. */
+static void
+write_decls ()
+{
+ fprintf (header_file, "enum rs6000_gen_builtins\n{\n RS6000_BIF_NONE,\n");
+ rbt_inorder_callback (&bif_rbt, bif_rbt.rbt_root, write_bif_enum);
+ fprintf (header_file, " RS6000_BIF_MAX\n};\n\n");
+
+ fprintf (header_file, "enum restriction {\n");
+ fprintf (header_file, " RES_NONE,\n");
+ fprintf (header_file, " RES_BITS,\n");
+ fprintf (header_file, " RES_RANGE,\n");
+ fprintf (header_file, " RES_VALUES\n");
+ fprintf (header_file, "};\n\n");
+
+ fprintf (header_file, "struct bifdata\n");
+ fprintf (header_file, "{\n");
+ fprintf (header_file, " const char *bifname;\n");
+ fprintf (header_file, " tree fntype;\n");
+ fprintf (header_file, " insn_code icode;\n");
+ fprintf (header_file, " int bifattrs;\n");
+ fprintf (header_file, " int restr_opnd;\n");
+ fprintf (header_file, " restriction restr;\n");
+ fprintf (header_file, " int restr_val1;\n");
+ fprintf (header_file, " int restr_val2;\n");
+ fprintf (header_file, "};\n\n");
+
+ fprintf (header_file, "#define bif_const_bit\t(0x0000001)\n");
+ fprintf (header_file, "#define bif_pure_bit\t(0x0000002)\n");
+ fprintf (header_file, "#define bif_round_bit\t(0x0000004)\n");
+ fprintf (header_file, "#define bif_init_bit\t(0x0000008)\n");
+ fprintf (header_file, "#define bif_set_bit\t(0x0000010)\n");
+ fprintf (header_file, "#define bif_ext_bit\t(0x0000020)\n");
+ fprintf (header_file, "#define bif_nosoft_bit\t(0x0000040)\n");
+ fprintf (header_file, "#define bif_ldv_bit\t(0x0000080)\n");
+ fprintf (header_file, "#define bif_stv_bit\t(0x0000100)\n");
+ fprintf (header_file, "#define bif_reve_bit\t(0x0000200)\n");
+ fprintf (header_file, "#define bif_abs_bit\t(0x0000400)\n");
+ fprintf (header_file, "#define bif_pred_bit\t(0x0000800)\n");
+ fprintf (header_file, "#define bif_htm_bit\t(0x0001000)\n");
+ fprintf (header_file, "\n");
+ fprintf (header_file,
+ "#define bif_is_const(x)\t\t((x).bifattrs & bif_const_bit)\n");
+ fprintf (header_file,
+ "#define bif_is_pure(x)\t\t((x).bifattrs & bif_pure_bit)\n");
+ fprintf (header_file,
+ "#define bif_has_rounding(x)\t((x).bifattrs & bif_round_bit)\n");
+ fprintf (header_file,
+ "#define bif_is_init(x)\t\t((x).bifattrs & bif_init_bit)\n");
+ fprintf (header_file,
+ "#define bif_is_extract(x)\t((x).bifattrs & bif_ext_bit)\n");
+ fprintf (header_file,
+ "#define bif_is_nosoft(x)\t((x).bifattrs & bif_nosoft_bit)\n");
+ fprintf (header_file,
+ "#define bif_is_ldv(x)\t\t((x).bifattrs & bif_ldv_bit)\n");
+ fprintf (header_file,
+ "#define bif_is_stv(x)\t\t((x).bifattrs & bif_stv_bit)\n");
+ fprintf (header_file,
+ "#define bif_is_reve(x)\t\t((x).bifattrs & bif_reve_bit)\n");
+ fprintf (header_file,
+ "#define bif_is_abs(x)\t\t((x).bifattrs & bif_abs_bit)\n");
+ fprintf (header_file,
+ "#define bif_is_predicate(x)\t((x).bifattrs & bif_pred_bit)\n");
+ fprintf (header_file,
+ "#define bif_is_htm(x)\t\t((x).bifattrs & bif_htm_bit)\n");
+ fprintf (header_file, "\n");
+
+ /* #### Note that the _x is added for now to avoid conflict with
+ the existing rs6000_builtin_info[] file while testing. It will
+ be removed as we progress. */
+ fprintf (header_file, "extern bifdata rs6000_builtin_info_x[];\n\n");
+
+ fprintf (header_file,
+ "struct rs6000_bif_hasher : nofree_ptr_hash<bifdata>\n");
+ fprintf (header_file, "{\n");
+ fprintf (header_file, " typedef const char *compare_type;\n\n");
+ fprintf (header_file, " static hashval_t hash (bifdata *);\n");
+ fprintf (header_file, " static bool equal (bifdata *, const char *);\n");
+ fprintf (header_file, "};\n\n");
+
+ fprintf (header_file, "extern hash_table<rs6000_bif_hasher> bif_hash;\n\n");
+
+ /* Right now we use nonoverlapping numbers for rs6000_gen_builtins
+ and rs6000_gen_overloads. In the old design, these were all in the
+ same enum, and I can't yet prove there isn't a dependency on these
+ numbers being distinct. Once this is more clear, I may change
+ this to start at zero. */
+ fprintf (header_file, "enum rs6000_gen_overloads\n{\n");
+ fprintf (header_file, " RS6000_OVLD_NONE = RS6000_BIF_MAX + 1,\n");
+ rbt_inorder_callback (&ovld_rbt, ovld_rbt.rbt_root, write_ovld_enum);
+ fprintf (header_file, " RS6000_OVLD_MAX\n};\n\n");
+
+ fprintf (header_file, "struct ovlddata\n");
+ fprintf (header_file, "{\n");
+ fprintf (header_file, " const char *bifname;\n");
+ fprintf (header_file, " rs6000_gen_builtins bifid;\n");
+ fprintf (header_file, " tree fntype;\n");
+ fprintf (header_file, " ovlddata *next;\n");
+ fprintf (header_file, "};\n\n");
+
+ fprintf (header_file, "extern ovlddata rs6000_overload_info[];\n\n");
+
+ fprintf (header_file,
+ "struct rs6000_ovld_hasher : nofree_ptr_hash<ovlddata>\n");
+ fprintf (header_file, "{\n");
+ fprintf (header_file, " typedef const char *compare_type;\n\n");
+ fprintf (header_file, " static hashval_t hash (ovlddata *);\n");
+ fprintf (header_file, " static bool equal (ovlddata *, const char *);\n");
+ fprintf (header_file, "};\n\n");
+
+ fprintf (header_file,
+ "extern hash_table<rs6000_ovld_hasher> ovld_hash;\n\n");
+
+ fprintf (header_file, "extern void rs6000_autoinit_builtins ();\n\n");
+}
+
+/* Callback functions used for generating trees for function types. */
+void
+write_extern_fntype (char *str)
+{
+ fprintf (header_file, "extern tree %s;\n", str);
+}
+
/* Write everything to the header file (rs6000-bif.h). */
static int
write_header_file ()
{
+ write_autogenerated_header (header_file);
+ fprintf (header_file, "#include \"config.h\"\n");
+ fprintf (header_file, "#include \"system.h\"\n");
+ fprintf (header_file, "#include \"coretypes.h\"\n");
+ fprintf (header_file, "#include \"backend.h\"\n");
+ fprintf (header_file, "#include \"rtl.h\"\n");
+ fprintf (header_file, "#include \"tree.h\"\n");
+ fprintf (header_file, "\n");
+ fprintf (header_file, "#undef NEW_BUILTINS_ARE_LIVE\n\n");
+
+ write_decls ();
+
+ /* Write function type list declarators to the header file. */
+ rbt_inorder_callback (&fntype_rbt, fntype_rbt.rbt_root, write_extern_fntype);
+ fprintf (header_file, "\n");
+
return 1;
}
--
2.17.1
