IA MCU psABI support: changes to libraries

[gcc.git] / gcc / libfuncs.h

diff --git a/gcc/libfuncs.h b/gcc/libfuncs.h
index 70621cf28899f779930e3a294471b20bab8270a8..22e6973fd2db9e93781bae538e300f359c1b1b91 100644 (file)
--- a/gcc/libfuncs.h
+++ b/gcc/libfuncs.h
@@ -1,5 +1,5 @@
 /* Definitions for code generation pass of GNU compiler.
-   Copyright (C) 2001, 2004, 2007, 2008 Free Software Foundation, Inc.
+   Copyright (C) 2001-2015 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -20,6 +20,7 @@ along with GCC; see the file COPYING3.  If not see
 #ifndef GCC_LIBFUNCS_H
 #define GCC_LIBFUNCS_H
 
+
 /* Enumeration of indexes into libfunc_table.  */
 enum libfunc_index
 {
@@ -30,8 +31,6 @@ enum libfunc_index
   LTI_memset,
   LTI_setbits,
 
-  LTI_unwind_resume,
-  LTI_eh_personality,
   LTI_setjmp,
   LTI_longjmp,
   LTI_unwind_sjlj_register,
@@ -47,9 +46,46 @@ enum libfunc_index
   LTI_MAX
 };
 
-/* SYMBOL_REF rtx's for the library functions that are called
-   implicitly and not via optabs.  */
-extern GTY(()) rtx libfunc_table[LTI_MAX];
+/* 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
+     implicitly and not via optabs.  */
+  rtx x_libfunc_table[LTI_MAX];
+
+  /* Hash table used to convert declarations into nodes.  */
+  hash_table<libfunc_hasher> *GTY(()) x_libfunc_hash;
+};
+
+extern GTY(()) struct target_libfuncs default_target_libfuncs;
+#if SWITCHABLE_TARGET
+extern struct target_libfuncs *this_target_libfuncs;
+#else
+#define this_target_libfuncs (&default_target_libfuncs)
+#endif
+
+#define libfunc_table \
+  (this_target_libfuncs->x_libfunc_table)
 
 /* Accessor macros for libfunc_table.  */
 
@@ -60,8 +96,6 @@ extern GTY(()) rtx libfunc_table[LTI_MAX];
 #define memset_libfunc (libfunc_table[LTI_memset])
 #define setbits_libfunc        (libfunc_table[LTI_setbits])
 
-#define unwind_resume_libfunc  (libfunc_table[LTI_unwind_resume])
-#define eh_personality_libfunc (libfunc_table[LTI_eh_personality])
 #define setjmp_libfunc (libfunc_table[LTI_setjmp])
 #define longjmp_libfunc        (libfunc_table[LTI_longjmp])
 #define unwind_sjlj_register_libfunc (libfunc_table[LTI_unwind_sjlj_register])
@@ -75,4 +109,7 @@ extern GTY(()) rtx libfunc_table[LTI_MAX];
 
 #define gcov_flush_libfunc     (libfunc_table[LTI_gcov_flush])
 
+/* In explow.c */
+extern void set_stack_check_libfunc (const char *);
+
 #endif /* GCC_LIBFUNCS_H */