/* Definitions for code generation pass of GNU compiler.
- Copyright (C) 2001, 2004, 2007, 2008, 2010 Free Software Foundation, Inc.
+ Copyright (C) 2001-2015 Free Software Foundation, Inc.
This file is part of GCC.
#ifndef GCC_LIBFUNCS_H
#define GCC_LIBFUNCS_H
-#include "hashtab.h"
/* Enumeration of indexes into libfunc_table. */
enum libfunc_index
LTI_MAX
};
-/* Information about an optab-related libfunc. We use the same hashtable
- for normal optabs and conversion optabs. In the first case mode2
- is unused. */
-struct GTY(()) libfunc_entry {
- size_t optab;
- enum machine_mode mode1, mode2;
+/* Information about an optab-related libfunc. The op field is logically
+ an enum optab_d, and the mode fields are logically machine_mode.
+ However, in the absence of forward-declared enums, there's no practical
+ benefit of pulling in the defining headers.
+
+ We use the same hashtable for normal optabs and conversion optabs. In
+ the first case mode2 is forced to VOIDmode. */
+
+struct GTY((for_user)) libfunc_entry {
+ int op, mode1, mode2;
rtx libfunc;
};
+/* Descriptor for libfunc_entry. */
+
+struct libfunc_hasher : ggc_ptr_hash<libfunc_entry>
+{
+ static hashval_t hash (libfunc_entry *);
+ static bool equal (libfunc_entry *, libfunc_entry *);
+};
+
/* Target-dependent globals. */
struct GTY(()) target_libfuncs {
/* SYMBOL_REF rtx's for the library functions that are called
rtx x_libfunc_table[LTI_MAX];
/* Hash table used to convert declarations into nodes. */
- htab_t GTY((param_is (struct libfunc_entry))) x_libfunc_hash;
+ hash_table<libfunc_hasher> *GTY(()) x_libfunc_hash;
};
extern GTY(()) struct target_libfuncs default_target_libfuncs;