machmode.h (int_n_data_t): New.

	* machmode.h (int_n_data_t): New.
	(int_n_enabled_p): New.
	(int_n_data): New.
	* tree.c (int_n_enabled_p): New.
	(int_n_trees): New.
	(make_or_reuse_type): Check for all __intN types, not just
	__int128.
	(build_common_tree_nodes): Likewise.  Also fill in integer_typs[]
	entries.
	* tree.h (int128_integer_type_node): Remove.
	(int128_unsigned_type_node): Remove.
	(int_n_trees_t): New.
	(int_n_enabled_p): New.
	(int_n_trees): New.
	* toplev.c (standard_type_bitsize): New.
	(do_compile): Check which __intN types are enabled for the current
	run.
	* builtin-types.def (BT_INT128): Remove.
	(BT_UINT128): Remove.
	* machmode.def: Add macro to create __int128 for all targets.
	* stor-layout.c (mode_for_size): Support __intN types.
	(smallest_mode_for_size): Likewise.
	(initialize_sizetypes): Support __intN types.
	* genmodes.c (struct mode_data): Add int_n field.
	(blank_mode): Likewise.
	(INT_N): New.
	(make_int_n): New.
	(emit_insn_modes_h): Count __intN entries and define
	NUM_INT_N_ENTS.
	(emit_mode_int_n): New.
	(emit_insn_modes_c): Call it.
	* gimple.c (gimple_signed_or_unsigned_type): Check for all __intN
	types, not just __int128.
	* tree-core.h (integer_type_kind): Remove __int128-specific
	entries, reserve spots for __intN entries.

libstdc++-v3/
	* src/c++11/limits.cc: Add support for __intN types.
	* include/std/type_traits: Likewise.
	* include/std/limits: Likewise.
	* include/c_std/cstdlib: Likewise.
	* include/bits/cpp_type_traits.h: Likewise.
	* include/c_global/cstdlib: Likewise.

c-family/
	* c-pretty-print.c (pp_c_integer_constant): Check for all __intN
	types, not just __int128.
	* c-cppbuiltin.c (c_cpp_builtins): Add builtins for all __intN
	types, not just __int128.
	(cpp_atomic_builtins): Round pointer sizes up.
	(type_suffix): Use type precision, not specific types.
	* c-common.c (c_common_reswords): Remove __int128 special case.
	(c_common_type_for_size): Check for all __intN types, not just
	__int128.
	(c_common_type_for_mode): Likewise.
	(c_common_signed_or_unsigned_type): Likewise.
	(c_build_bitfield_integer_type): Likewise.
	(c_common_nodes_and_builtins): Likewise.
	(keyword_begins_type_specifier): Likewise.
	* c-common.h (rid): Remove RID_INT128 and add RID_INT_N_* for all
	__intN variants.

c/
	* c-parser.c (c_parse_init): Add RID entries for each __intN.
	(c_token_starts_typename): Check all __intN, not just __int128.
	(c_token_starts_declspecs): Likewise.
	(c_parser_declspecs): Likewise.
	(c_parser_attribute_any_word): Likewise.
	(c_parser_objc_selector): Likewise.
	* c-tree.h (c_typespec_keyword): cts_int128 -> cts_int_n.
	(struct c_declspecs): Add int_n_idx field to record *which* __intN
	is specified.
	* c-decl.c (declspecs_add_type): Check for all __intN, not just
	__int128.
	(finish_declspecs): Likewise.

testsuite/
	* g++.dg/abi/mangle64.C: New.

cp/
	* typeck.c (cp_common_type): Check for all __intN types, not just
	__int128.
	* decl.c (grokdeclarator): Likewise.
	* rtti.c (emit_support_tinfos): Check for all __intN types, not just
	__int128.
	* parser.c (cp_lexer_next_token_is_decl_specifier_keyword): Check
	for all __intN types, not just __int128.
	(cp_parser_simple_type_specifier): Likewise.
	* mangle.c (integer_type_codes): Remove int128-specific codes.
	* cp-tree.h (cp_decl_specifier_seq): Add int_n_idx to store which
	__intN was specified.
	* lex.c (init_reswords): Reserve all __intN keywords.

lto/
	* lto-lang.c (lto_build_c_type_nodes): Check intN types for
	size-type as well.
	(lto_init): Initialize all intN types, not just int128.

From-SVN: r216220

1 files changed, 86 insertions, 1 deletions

diff --git a/gcc/genmodes.c b/gcc/genmodes.c
index 0215a1883c8..1a32cdefeab 100644
--- a/gcc/genmodes.c
+++ b/gcc/genmodes.c
@@ -74,6 +74,7 @@ struct mode_data
   unsigned int fbit;		/* the number of fractional bits */
   bool need_bytesize_adj;	/* true if this mode need dynamic size
 				   adjustment */
+  unsigned int int_n;		/* If nonzero, then __int<INT_N> will be defined */
 };
 
 static struct mode_data *modes[MAX_MODE_CLASS];
@@ -84,7 +85,7 @@ static const struct mode_data blank_mode = {
   0, "<unknown>", MAX_MODE_CLASS,
   -1U, -1U, -1U, -1U,
   0, 0, 0, 0, 0,
-  "<unknown>", 0, 0, 0, 0, false
+  "<unknown>", 0, 0, 0, 0, false, 0
 };
 
 static htab_t modes_by_name;
@@ -632,6 +633,34 @@ reset_float_format (const char *name, const char *format,
   m->format = format;
 }
 
+/* __intN support.  */
+#define INT_N(M,PREC)				\
+  make_int_n (#M, PREC, __FILE__, __LINE__)
+static void ATTRIBUTE_UNUSED
+make_int_n (const char *m, int bitsize,
+            const char *file, unsigned int line)
+{
+  struct mode_data *component = find_mode (m);
+  if (!component)
+    {
+      error ("%s:%d: no mode \"%s\"", file, line, m);
+      return;
+    }
+  if (component->cl != MODE_INT
+      && component->cl != MODE_PARTIAL_INT)
+    {
+      error ("%s:%d: mode \"%s\" is not class INT or PARTIAL_INT", file, line, m);
+      return;
+    }
+  if (component->int_n != 0)
+    {
+      error ("%s:%d: mode \"%s\" already has an intN", file, line, m);
+      return;
+    }
+
+  component->int_n = bitsize;
+}
+
 /* Partial integer modes are specified by relation to a full integer
    mode.  */
 #define PARTIAL_INT_MODE(M,PREC,NAME)				\
@@ -1010,6 +1039,7 @@ emit_insn_modes_h (void)
 {
   int c;
   struct mode_data *m, *first, *last;
+  int n_int_n_ents = 0;
 
   printf ("/* Generated automatically from machmode.def%s%s\n",
 	   HAVE_EXTRA_MODES ? " and " : "",
@@ -1071,6 +1101,13 @@ enum machine_mode\n{");
   printf ("#define CONST_MODE_IBIT%s\n", adj_ibit ? "" : " const");
   printf ("#define CONST_MODE_FBIT%s\n", adj_fbit ? "" : " const");
   emit_max_int ();
+
+  for_all_modes (c, m)
+    if (m->int_n)
+      n_int_n_ents ++;
+
+  printf ("#define NUM_INT_N_ENTS %d\n", n_int_n_ents);
+
   puts ("\n#if GCC_VERSION >= 4001\n");
   emit_mode_size_inline ();
   emit_mode_nunits_inline ();
@@ -1520,6 +1557,53 @@ emit_mode_fbit (void)
   print_closer ();
 }
 
+/* Emit __intN for all modes.  */
+
+static void
+emit_mode_int_n (void)
+{
+  int c;
+  struct mode_data *m;
+  struct mode_data **mode_sort;
+  int n_modes = 0;
+  int i, j;
+
+  print_decl ("int_n_data_t", "int_n_data", "");
+
+  n_modes = 0;
+  for_all_modes (c, m)
+    if (m->int_n)
+      n_modes ++;
+  mode_sort = XALLOCAVEC (struct mode_data *, n_modes);
+
+  n_modes = 0;
+  for_all_modes (c, m)
+    if (m->int_n)
+      mode_sort[n_modes++] = m;
+
+  /* Yes, this is a bubblesort, but there are at most four (and
+     usually only 1-2) entries to sort.  */
+  for (i = 0; i<n_modes - 1; i++)
+    for (j = i + 1; j < n_modes; j++)
+      if (mode_sort[i]->int_n > mode_sort[j]->int_n)
+	{
+	  m = mode_sort[i];
+	  mode_sort[i] = mode_sort[j];
+	  mode_sort[j] = m;
+	}
+
+  for (i = 0; i < n_modes; i ++)
+    {
+      m = mode_sort[i];
+      printf(" {\n");
+      tagged_printf ("%u", m->int_n, m->name);
+      printf ("%smode,", m->name);
+      printf(" },\n");
+    }
+
+  print_closer ();
+}
+
 
 static void
 emit_insn_modes_c (void)
@@ -1539,6 +1623,7 @@ emit_insn_modes_c (void)
   emit_mode_adjustments ();
   emit_mode_ibit ();
   emit_mode_fbit ();
+  emit_mode_int_n ();
 }
 
 static void