* 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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216220 138bc75d-0d04-0410-961f-82ee72b054a4

7 files changed, 383 insertions, 209 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index a20ae1ccade..cc052f082b5 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,12 @@
+2014-10-14  DJ Delorie  <dj@redhat.com>
+
+	* 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.
+
 2014-10-14  Jonathan Wakely  <jwakely@redhat.com>
 
 	* testsuite/20_util/align/1.cc: Add dg-require-stdint.
diff --git a/libstdc++-v3/include/bits/cpp_type_traits.h b/libstdc++-v3/include/bits/cpp_type_traits.h
index 8df81a705ea..46067f18a1e 100644
--- a/libstdc++-v3/include/bits/cpp_type_traits.h
+++ b/libstdc++-v3/include/bits/cpp_type_traits.h
@@ -141,7 +141,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 
   // Thirteen specializations (yes there are eleven standard integer
   // types; <em>long long</em> and <em>unsigned long long</em> are
-  // supported as extensions)
+  // supported as extensions).  Up to four target-specific __int<N>
+  // types are supported as well.
   template<>
     struct __is_integer<bool>
     {
@@ -251,6 +252,35 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       typedef __true_type __type;
     };
 
+#define __INT_N(TYPE) 			\
+  template<>				\
+    struct __is_integer<TYPE>		\
+    {					\
+      enum { __value = 1 };		\
+      typedef __true_type __type;	\
+    };					\
+  template<>				\
+    struct __is_integer<unsigned TYPE>	\
+    {					\
+      enum { __value = 1 };		\
+      typedef __true_type __type;	\
+    };
+
+#ifdef __GLIBCXX_TYPE_INT_N_0
+__INT_N(__GLIBCXX_TYPE_INT_N_0)
+#endif
+#ifdef __GLIBCXX_TYPE_INT_N_1
+__INT_N(__GLIBCXX_TYPE_INT_N_1)
+#endif
+#ifdef __GLIBCXX_TYPE_INT_N_2
+__INT_N(__GLIBCXX_TYPE_INT_N_2)
+#endif
+#ifdef __GLIBCXX_TYPE_INT_N_3
+__INT_N(__GLIBCXX_TYPE_INT_N_3)
+#endif
+
+#undef __INT_N
+
   //
   // Floating point types
   //
diff --git a/libstdc++-v3/include/c_global/cstdlib b/libstdc++-v3/include/c_global/cstdlib
index e98a7262817..f1b36f3db61 100644
--- a/libstdc++-v3/include/c_global/cstdlib
+++ b/libstdc++-v3/include/c_global/cstdlib
@@ -174,10 +174,23 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   abs(long long __x) { return __builtin_llabs (__x); }
 #endif
 
-#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_INT128)
-  inline __int128
-  abs(__int128 __x) { return __x >= 0 ? __x : -__x; }
+#if defined(__GLIBCXX_TYPE_INT_N_0)
+  inline __GLIBCXX_TYPE_INT_N_0
+  abs(__GLIBCXX_TYPE_INT_N_0 __x) { return __x >= 0 ? __x : -__x; }
 #endif
+#if defined(__GLIBCXX_TYPE_INT_N_1)
+  inline __GLIBCXX_TYPE_INT_N_1
+  abs(__GLIBCXX_TYPE_INT_N_1 __x) { return __x >= 0 ? __x : -__x; }
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_2)
+  inline __GLIBCXX_TYPE_INT_N_2
+  abs(__GLIBCXX_TYPE_INT_N_2 __x) { return __x >= 0 ? __x : -__x; }
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_3)
+  inline __GLIBCXX_TYPE_INT_N_3
+  abs(__GLIBCXX_TYPE_INT_N_3 __x) { return __x >= 0 ? __x : -__x; }
+#endif
+
 
 _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace
diff --git a/libstdc++-v3/include/c_std/cstdlib b/libstdc++-v3/include/c_std/cstdlib
index 7f0d9b20cd1..38c942a3ceb 100644
--- a/libstdc++-v3/include/c_std/cstdlib
+++ b/libstdc++-v3/include/c_std/cstdlib
@@ -169,9 +169,21 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   abs(long long __x) { return __builtin_llabs (__x); }
 #endif
 
-#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_INT128)
-  inline __int128
-  abs(__int128 __x) { return __x >= 0 ? __x : -__x; }
+#if defined(__GLIBCXX_TYPE_INT_N_0)
+  inline __GLIBCXX_TYPE_INT_N_0
+  abs(__GLIBCXX_TYPE_INT_N_0 __x) { return __x >= 0 ? __x : -__x; }
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_1)
+  inline __GLIBCXX_TYPE_INT_N_1
+  abs(__GLIBCXX_TYPE_INT_N_1 __x) { return __x >= 0 ? __x : -__x; }
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_2)
+  inline __GLIBCXX_TYPE_INT_N_2
+  abs(__GLIBCXX_TYPE_INT_N_2 __x) { return __x >= 0 ? __x : -__x; }
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_3)
+  inline __GLIBCXX_TYPE_INT_N_3
+  abs(__GLIBCXX_TYPE_INT_N_3 __x) { return __x >= 0 ? __x : -__x; }
 #endif
 
   inline ldiv_t
diff --git a/libstdc++-v3/include/std/limits b/libstdc++-v3/include/std/limits
index f39821eb365..d5add09655a 100644
--- a/libstdc++-v3/include/std/limits
+++ b/libstdc++-v3/include/std/limits
@@ -125,21 +125,32 @@
 
 // You should not need to define any macros below this point.
 
-#define __glibcxx_signed(T)	((T)(-1) < 0)
+#define __glibcxx_signed_b(T,B)	((T)(-1) < 0)
 
-#define __glibcxx_min(T) \
-  (__glibcxx_signed (T) ? -__glibcxx_max (T) - 1 : (T)0)
+#define __glibcxx_min_b(T,B)					\
+  (__glibcxx_signed_b (T,B) ? -__glibcxx_max_b (T,B) - 1 : (T)0)
 
-#define __glibcxx_max(T) \
-  (__glibcxx_signed (T) ? \
-   (((((T)1 << (__glibcxx_digits (T) - 1)) - 1) << 1) + 1) : ~(T)0)
+#define __glibcxx_max_b(T,B)						\
+  (__glibcxx_signed_b (T,B) ?						\
+   (((((T)1 << (__glibcxx_digits_b (T,B) - 1)) - 1) << 1) + 1) : ~(T)0)
 
-#define __glibcxx_digits(T) \
-  (sizeof(T) * __CHAR_BIT__ - __glibcxx_signed (T))
+#define __glibcxx_digits_b(T,B)				\
+  (B - __glibcxx_signed_b (T,B))
 
 // The fraction 643/2136 approximates log10(2) to 7 significant digits.
+#define __glibcxx_digits10_b(T,B)		\
+  (__glibcxx_digits_b (T,B) * 643L / 2136)
+
+#define __glibcxx_signed(T) \
+  __glibcxx_signed_b (T, sizeof(T) * __CHAR_BIT__)
+#define __glibcxx_min(T) \
+  __glibcxx_min_b (T, sizeof(T) * __CHAR_BIT__)
+#define __glibcxx_max(T) \
+  __glibcxx_max_b (T, sizeof(T) * __CHAR_BIT__)
+#define __glibcxx_digits(T) \
+  __glibcxx_digits_b (T, sizeof(T) * __CHAR_BIT__)
 #define __glibcxx_digits10(T) \
-  (__glibcxx_digits (T) * 643L / 2136)
+  __glibcxx_digits10_b (T, sizeof(T) * __CHAR_BIT__)
 
 #define __glibcxx_max_digits10(T) \
   (2 + (T) * 643L / 2136)
@@ -1399,153 +1410,181 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
        = round_toward_zero;
     };
 
-#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_INT128)
-  /// numeric_limits<__int128> specialization.
-  template<>
-    struct numeric_limits<__int128>
-    {
-      static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
-
-      static _GLIBCXX_CONSTEXPR __int128
-      min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min (__int128); }
-
-      static _GLIBCXX_CONSTEXPR __int128
-      max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max (__int128); }
+#if !defined(__STRICT_ANSI__)
+
+#define __INT_N(TYPE, BITSIZE, EXT, UEXT)			\
+  template<> 									\
+    struct numeric_limits<TYPE> 						\
+    { 										\
+      static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; 		\
+ 										\
+      static _GLIBCXX_CONSTEXPR TYPE 						\
+	min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min_b (TYPE, BITSIZE); } \
+ 										\
+      static _GLIBCXX_CONSTEXPR TYPE 						\
+      max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max_b (TYPE, BITSIZE);; } 	\	
+ 										\
+      static _GLIBCXX_USE_CONSTEXPR int digits 					\
+       = BITSIZE - 1; 								\
+      static _GLIBCXX_USE_CONSTEXPR int digits10 				\
+       = (BITSIZE - 1) * 643L / 2136; 						\
+      										\
+      static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; 			\
+      static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; 			\
+      static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; 			\
+      static _GLIBCXX_USE_CONSTEXPR int radix = 2; 				\
+ 										\
+      static _GLIBCXX_CONSTEXPR TYPE 						\
+      epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } 				\
+ 										\
+      static _GLIBCXX_CONSTEXPR TYPE 						\
+      round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } 			\
+ 										\
+      EXT									\
+ 										\
+      static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; 			\
+      static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; 			\
+      static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; 			\
+      static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; 			\
+ 										\
+      static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; 			\
+      static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; 		\
+      static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; 		\
+      static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm 		\
+       = denorm_absent; 							\
+      static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; 		\
+ 										\
+      static _GLIBCXX_CONSTEXPR TYPE 						\
+      infinity() _GLIBCXX_USE_NOEXCEPT 						\
+      { return static_cast<TYPE>(0); } 						\
+ 										\
+      static _GLIBCXX_CONSTEXPR TYPE 						\
+      quiet_NaN() _GLIBCXX_USE_NOEXCEPT 					\
+      { return static_cast<TYPE>(0); } 						\
+       										\
+      static _GLIBCXX_CONSTEXPR TYPE 						\
+      signaling_NaN() _GLIBCXX_USE_NOEXCEPT 					\
+      { return static_cast<TYPE>(0); } 						\
+       										\
+      static _GLIBCXX_CONSTEXPR TYPE 						\
+      denorm_min() _GLIBCXX_USE_NOEXCEPT 					\
+      { return static_cast<TYPE>(0); } 						\
+ 										\
+      static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; 			\
+      static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; 			\
+      static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; 			\
+ 										\
+      static _GLIBCXX_USE_CONSTEXPR bool traps 					\
+       = __glibcxx_integral_traps; 						\
+      static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; 		\
+      static _GLIBCXX_USE_CONSTEXPR float_round_style round_style 		\
+       = round_toward_zero; 							\
+    }; 										\
+ 										\
+  template<> 									\
+    struct numeric_limits<unsigned TYPE> 					\
+    { 										\
+      static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; 		\
+ 										\
+      static _GLIBCXX_CONSTEXPR unsigned TYPE 					\
+      min() _GLIBCXX_USE_NOEXCEPT { return 0; } 				\
+ 										\
+      static _GLIBCXX_CONSTEXPR unsigned TYPE 					\
+      max() _GLIBCXX_USE_NOEXCEPT { return  __glibcxx_max_b (TYPE, BITSIZE); }  \
+ 										\
+      UEXT									\
+ 										\
+      static _GLIBCXX_USE_CONSTEXPR int digits 					\
+       = BITSIZE; 								\
+      static _GLIBCXX_USE_CONSTEXPR int digits10 				\
+       = BITSIZE * 643L / 2136; 						\
+      static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; 			\
+      static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; 			\
+      static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; 			\
+      static _GLIBCXX_USE_CONSTEXPR int radix = 2; 				\
+ 										\
+      static _GLIBCXX_CONSTEXPR unsigned TYPE 					\
+      epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } 				\
+ 										\
+      static _GLIBCXX_CONSTEXPR unsigned TYPE 					\
+      round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } 			\
+ 										\
+      static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; 			\
+      static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; 			\
+      static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; 			\
+      static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; 			\
+ 										\
+      static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; 			\
+      static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; 		\
+      static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; 		\
+      static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm 		\
+       = denorm_absent; 							\
+      static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; 		\
+ 										\
+      static _GLIBCXX_CONSTEXPR unsigned TYPE 					\
+      infinity() _GLIBCXX_USE_NOEXCEPT 						\
+      { return static_cast<unsigned TYPE>(0); } 				\
+ 										\
+      static _GLIBCXX_CONSTEXPR unsigned TYPE 					\
+      quiet_NaN() _GLIBCXX_USE_NOEXCEPT 					\
+      { return static_cast<unsigned TYPE>(0); } 				\
+ 										\
+      static _GLIBCXX_CONSTEXPR unsigned TYPE 					\
+      signaling_NaN() _GLIBCXX_USE_NOEXCEPT 					\
+      { return static_cast<unsigned TYPE>(0); } 				\
+ 										\
+      static _GLIBCXX_CONSTEXPR unsigned TYPE 					\
+      denorm_min() _GLIBCXX_USE_NOEXCEPT 					\
+      { return static_cast<unsigned TYPE>(0); } 				\
+ 										\
+      static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; 			\
+      static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; 			\
+      static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; 			\
+ 										\
+      static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; 	\
+      static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; 		\
+      static _GLIBCXX_USE_CONSTEXPR float_round_style round_style 		\
+       = round_toward_zero; 							\
+    };
 
 #if __cplusplus >= 201103L
-      static constexpr __int128
-      lowest() noexcept { return min(); }
-#endif
 
-      static _GLIBCXX_USE_CONSTEXPR int digits
-       = __glibcxx_digits (__int128);
-      static _GLIBCXX_USE_CONSTEXPR int digits10
-       = __glibcxx_digits10 (__int128);
-#if __cplusplus >= 201103L
+#define __INT_N_201103(TYPE)							\
+      static constexpr TYPE 							\
+      lowest() noexcept { return min(); }					\
       static constexpr int max_digits10 = 0;
-#endif
-      static _GLIBCXX_USE_CONSTEXPR bool is_signed = true;
-      static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
-      static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
-      static _GLIBCXX_USE_CONSTEXPR int radix = 2;
-
-      static _GLIBCXX_CONSTEXPR __int128
-      epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
-
-      static _GLIBCXX_CONSTEXPR __int128
-      round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
-
-      static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
-      static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
-      static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
-      static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
-
-      static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
-      static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
-      static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
-      static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
-       = denorm_absent;
-      static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
-
-      static _GLIBCXX_CONSTEXPR __int128
-      infinity() _GLIBCXX_USE_NOEXCEPT
-      { return static_cast<__int128>(0); }
-
-      static _GLIBCXX_CONSTEXPR __int128
-      quiet_NaN() _GLIBCXX_USE_NOEXCEPT
-      { return static_cast<__int128>(0); }
-      
-      static _GLIBCXX_CONSTEXPR __int128
-      signaling_NaN() _GLIBCXX_USE_NOEXCEPT
-      { return static_cast<__int128>(0); }
-      
-      static _GLIBCXX_CONSTEXPR __int128
-      denorm_min() _GLIBCXX_USE_NOEXCEPT
-      { return static_cast<__int128>(0); }
-
-      static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
-      static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
-      static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false;
-
-      static _GLIBCXX_USE_CONSTEXPR bool traps
-       = __glibcxx_integral_traps;
-      static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
-      static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
-       = round_toward_zero;
-    };
-
-  /// numeric_limits<unsigned __int128> specialization.
-  template<>
-    struct numeric_limits<unsigned __int128>
-    {
-      static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true;
-
-      static _GLIBCXX_CONSTEXPR unsigned __int128
-      min() _GLIBCXX_USE_NOEXCEPT { return 0; }
 
-      static _GLIBCXX_CONSTEXPR unsigned __int128
-      max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max (unsigned __int128); }
+#define __INT_N_U201103(TYPE)							\
+      static constexpr unsigned TYPE 						\
+      lowest() noexcept { return min(); }					\
+      static constexpr int max_digits10 = 0;
 
-#if __cplusplus >= 201103L
-      static constexpr unsigned __int128
-      lowest() noexcept { return min(); }
+#else
+#define __INT_N_201103(TYPE)
+#define __INT_N_U201103(TYPE)
 #endif
 
-      static _GLIBCXX_USE_CONSTEXPR int digits
-       = __glibcxx_digits (unsigned __int128);
-      static _GLIBCXX_USE_CONSTEXPR int digits10
-       = __glibcxx_digits10 (unsigned __int128);
-#if __cplusplus >= 201103L
-      static constexpr int max_digits10 = 0;
+#ifdef __GLIBCXX_TYPE_INT_N_0
+  __INT_N(__GLIBCXX_TYPE_INT_N_0, __GLIBCXX_BITSIZE_INT_N_0,
+	  __INT_N_201103 (__GLIBCXX_TYPE_INT_N_0), __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_0))
+#endif
+#ifdef __GLIBCXX_TYPE_INT_N_1
+  __INT_N (__GLIBCXX_TYPE_INT_N_1, __GLIBCXX_BITSIZE_INT_N_1,
+	  __INT_N_201103 (__GLIBCXX_TYPE_INT_N_1), __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_1))
+#endif
+#ifdef __GLIBCXX_TYPE_INT_N_2
+  __INT_N (__GLIBCXX_TYPE_INT_N_2, __GLIBCXX_BITSIZE_INT_N_2,
+	  __INT_N_201103 (__GLIBCXX_TYPE_INT_N_2), __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_2))
+#endif
+#ifdef __GLIBCXX_TYPE_INT_N_3
+  __INT_N (__GLIBCXX_TYPE_INT_N_3, __GLIBCXX_BITSIZE_INT_N_3,
+	  __INT_N_201103 (__GLIBCXX_TYPE_INT_N_3), __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_3))
 #endif
-      static _GLIBCXX_USE_CONSTEXPR bool is_signed = false;
-      static _GLIBCXX_USE_CONSTEXPR bool is_integer = true;
-      static _GLIBCXX_USE_CONSTEXPR bool is_exact = true;
-      static _GLIBCXX_USE_CONSTEXPR int radix = 2;
-
-      static _GLIBCXX_CONSTEXPR unsigned __int128
-      epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; }
-
-      static _GLIBCXX_CONSTEXPR unsigned __int128
-      round_error() _GLIBCXX_USE_NOEXCEPT { return 0; }
-
-      static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0;
-      static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0;
-      static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0;
-      static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0;
-
-      static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false;
-      static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false;
-      static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false;
-      static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm
-       = denorm_absent;
-      static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false;
-
-      static _GLIBCXX_CONSTEXPR unsigned __int128
-      infinity() _GLIBCXX_USE_NOEXCEPT
-      { return static_cast<unsigned __int128>(0); }
-
-      static _GLIBCXX_CONSTEXPR unsigned __int128
-      quiet_NaN() _GLIBCXX_USE_NOEXCEPT
-      { return static_cast<unsigned __int128>(0); }
-
-      static _GLIBCXX_CONSTEXPR unsigned __int128
-      signaling_NaN() _GLIBCXX_USE_NOEXCEPT
-      { return static_cast<unsigned __int128>(0); }
-
-      static _GLIBCXX_CONSTEXPR unsigned __int128
-      denorm_min() _GLIBCXX_USE_NOEXCEPT
-      { return static_cast<unsigned __int128>(0); }
 
-      static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false;
-      static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true;
-      static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true;
+#undef __INT_N
+#undef __INT_N_201103
+#undef __INT_N_U201103
 
-      static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps;
-      static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false;
-      static _GLIBCXX_USE_CONSTEXPR float_round_style round_style
-       = round_toward_zero;
-    };
 #endif
 
   /// numeric_limits<float> specialization.
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits
index d776efeb68d..b92bbf09287 100644
--- a/libstdc++-v3/include/std/type_traits
+++ b/libstdc++-v3/include/std/type_traits
@@ -242,13 +242,42 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     struct __is_integral_helper<unsigned long long>
     : public true_type { };
 
-#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_INT128)
+  // Conditionalizing on __STRICT_ANSI__ here will break any port that
+  // uses one of these types for size_t.
+#if defined(__GLIBCXX_TYPE_INT_N_0)
   template<>
-    struct __is_integral_helper<__int128>
+    struct __is_integral_helper<__GLIBCXX_TYPE_INT_N_0>
     : public true_type { };
 
   template<>
-    struct __is_integral_helper<unsigned __int128>
+    struct __is_integral_helper<unsigned __GLIBCXX_TYPE_INT_N_0>
+    : public true_type { };
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_1)
+  template<>
+    struct __is_integral_helper<__GLIBCXX_TYPE_INT_N_1>
+    : public true_type { };
+
+  template<>
+    struct __is_integral_helper<unsigned __GLIBCXX_TYPE_INT_N_1>
+    : public true_type { };
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_2)
+  template<>
+    struct __is_integral_helper<__GLIBCXX_TYPE_INT_N_2>
+    : public true_type { };
+
+  template<>
+    struct __is_integral_helper<unsigned __GLIBCXX_TYPE_INT_N_2>
+    : public true_type { };
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_3)
+  template<>
+    struct __is_integral_helper<__GLIBCXX_TYPE_INT_N_3>
+    : public true_type { };
+
+  template<>
+    struct __is_integral_helper<unsigned __GLIBCXX_TYPE_INT_N_3>
     : public true_type { };
 #endif
 
@@ -1661,10 +1690,25 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     { };
 #endif
 
-#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_INT128)
+#if defined(__GLIBCXX_TYPE_INT_N_0)
+  template<>
+    struct __make_unsigned<__GLIBCXX_TYPE_INT_N_0>
+    { typedef unsigned __GLIBCXX_TYPE_INT_N_0 __type; };
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_1)
+  template<>
+    struct __make_unsigned<__GLIBCXX_TYPE_INT_N_1>
+    { typedef unsigned __GLIBCXX_TYPE_INT_N_1 __type; };
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_2)
   template<>
-    struct __make_unsigned<__int128>
-    { typedef unsigned __int128 __type; };
+    struct __make_unsigned<__GLIBCXX_TYPE_INT_N_2>
+    { typedef unsigned __GLIBCXX_TYPE_INT_N_2 __type; };
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_3)
+  template<>
+    struct __make_unsigned<__GLIBCXX_TYPE_INT_N_3>
+    { typedef unsigned __GLIBCXX_TYPE_INT_N_3 __type; };
 #endif
 
   // Select between integral and enum: not possible to be both.
@@ -1758,10 +1802,25 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     { };
 #endif
 
-#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_INT128)
+#if defined(__GLIBCXX_TYPE_INT_N_0)
+  template<>
+    struct __make_signed<unsigned __GLIBCXX_TYPE_INT_N_0>
+    { typedef __GLIBCXX_TYPE_INT_N_0 __type; };
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_1)
+  template<>
+    struct __make_signed<unsigned __GLIBCXX_TYPE_INT_N_1>
+    { typedef __GLIBCXX_TYPE_INT_N_1 __type; };
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_2)
+  template<>
+    struct __make_signed<unsigned __GLIBCXX_TYPE_INT_N_2>
+    { typedef __GLIBCXX_TYPE_INT_N_2 __type; };
+#endif
+#if defined(__GLIBCXX_TYPE_INT_N_3)
   template<>
-    struct __make_signed<unsigned __int128>
-    { typedef __int128 __type; };
+    struct __make_signed<unsigned __GLIBCXX_TYPE_INT_N_3>
+    { typedef __GLIBCXX_TYPE_INT_N_3 __type; };
 #endif
 
   // Select between integral and enum: not possible to be both.
diff --git a/libstdc++-v3/src/c++11/limits.cc b/libstdc++-v3/src/c++11/limits.cc
index 73335e7dc2b..5cb2b0edf0f 100644
--- a/libstdc++-v3/src/c++11/limits.cc
+++ b/libstdc++-v3/src/c++11/limits.cc
@@ -388,54 +388,66 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   const bool numeric_limits<unsigned long long>::tinyness_before;
   const float_round_style numeric_limits<unsigned long long>::round_style;
 
-#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_INT128)
-  const bool numeric_limits<__int128>::is_specialized;
-  const int  numeric_limits<__int128>::digits;
-  const int  numeric_limits<__int128>::digits10;
-  const int  numeric_limits<__int128>::max_digits10;
-  const bool numeric_limits<__int128>::is_signed;
-  const bool numeric_limits<__int128>::is_integer;
-  const bool numeric_limits<__int128>::is_exact;
-  const int  numeric_limits<__int128>::radix;
-  const int  numeric_limits<__int128>::min_exponent;
-  const int  numeric_limits<__int128>::min_exponent10;
-  const int  numeric_limits<__int128>::max_exponent;
-  const int  numeric_limits<__int128>::max_exponent10;
-  const bool numeric_limits<__int128>::has_infinity;
-  const bool numeric_limits<__int128>::has_quiet_NaN;
-  const bool numeric_limits<__int128>::has_signaling_NaN;
-  const float_denorm_style numeric_limits<__int128>::has_denorm;
-  const bool numeric_limits<__int128>::has_denorm_loss;
-  const bool numeric_limits<__int128>::is_iec559;
-  const bool numeric_limits<__int128>::is_bounded;
-  const bool numeric_limits<__int128>::is_modulo;
-  const bool numeric_limits<__int128>::traps;
-  const bool numeric_limits<__int128>::tinyness_before;
-  const float_round_style numeric_limits<__int128>::round_style;
-
-  const bool numeric_limits<unsigned __int128>::is_specialized;
-  const int  numeric_limits<unsigned __int128>::digits;
-  const int  numeric_limits<unsigned __int128>::digits10;
-  const int  numeric_limits<unsigned __int128>::max_digits10;
-  const bool numeric_limits<unsigned __int128>::is_signed;
-  const bool numeric_limits<unsigned __int128>::is_integer;
-  const bool numeric_limits<unsigned __int128>::is_exact;
-  const int  numeric_limits<unsigned __int128>::radix;
-  const int  numeric_limits<unsigned __int128>::min_exponent;
-  const int  numeric_limits<unsigned __int128>::min_exponent10;
-  const int  numeric_limits<unsigned __int128>::max_exponent;
-  const int  numeric_limits<unsigned __int128>::max_exponent10;
-  const bool numeric_limits<unsigned __int128>::has_infinity;
-  const bool numeric_limits<unsigned __int128>::has_quiet_NaN;
-  const bool numeric_limits<unsigned __int128>::has_signaling_NaN;
-  const float_denorm_style numeric_limits<unsigned __int128>::has_denorm;
-  const bool numeric_limits<unsigned __int128>::has_denorm_loss;
-  const bool numeric_limits<unsigned __int128>::is_iec559;
-  const bool numeric_limits<unsigned __int128>::is_bounded;
-  const bool numeric_limits<unsigned __int128>::is_modulo;
-  const bool numeric_limits<unsigned __int128>::traps;
-  const bool numeric_limits<unsigned __int128>::tinyness_before;
-  const float_round_style numeric_limits<unsigned __int128>::round_style;
+#define INT_N(__INT_N_TYPE)							\
+  const bool numeric_limits<__INT_N_TYPE>::is_specialized;			\
+  const int  numeric_limits<__INT_N_TYPE>::digits;				\
+  const int  numeric_limits<__INT_N_TYPE>::digits10;				\
+  const int  numeric_limits<__INT_N_TYPE>::max_digits10;			\
+  const bool numeric_limits<__INT_N_TYPE>::is_signed;				\
+  const bool numeric_limits<__INT_N_TYPE>::is_integer;				\
+  const bool numeric_limits<__INT_N_TYPE>::is_exact;				\
+  const int  numeric_limits<__INT_N_TYPE>::radix;				\
+  const int  numeric_limits<__INT_N_TYPE>::min_exponent;			\
+  const int  numeric_limits<__INT_N_TYPE>::min_exponent10;			\
+  const int  numeric_limits<__INT_N_TYPE>::max_exponent;			\
+  const int  numeric_limits<__INT_N_TYPE>::max_exponent10;			\
+  const bool numeric_limits<__INT_N_TYPE>::has_infinity;			\
+  const bool numeric_limits<__INT_N_TYPE>::has_quiet_NaN;			\
+  const bool numeric_limits<__INT_N_TYPE>::has_signaling_NaN;			\
+  const float_denorm_style numeric_limits<__INT_N_TYPE>::has_denorm;		\
+  const bool numeric_limits<__INT_N_TYPE>::has_denorm_loss;			\
+  const bool numeric_limits<__INT_N_TYPE>::is_iec559;				\
+  const bool numeric_limits<__INT_N_TYPE>::is_bounded;				\
+  const bool numeric_limits<__INT_N_TYPE>::is_modulo;				\
+  const bool numeric_limits<__INT_N_TYPE>::traps;				\
+  const bool numeric_limits<__INT_N_TYPE>::tinyness_before;			\
+  const float_round_style numeric_limits<__INT_N_TYPE>::round_style;		\
+  									\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::is_specialized;		\
+  const int  numeric_limits<unsigned __INT_N_TYPE>::digits;			\
+  const int  numeric_limits<unsigned __INT_N_TYPE>::digits10;			\
+  const int  numeric_limits<unsigned __INT_N_TYPE>::max_digits10;		\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::is_signed;			\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::is_integer;			\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::is_exact;			\
+  const int  numeric_limits<unsigned __INT_N_TYPE>::radix;			\
+  const int  numeric_limits<unsigned __INT_N_TYPE>::min_exponent;		\
+  const int  numeric_limits<unsigned __INT_N_TYPE>::min_exponent10;		\
+  const int  numeric_limits<unsigned __INT_N_TYPE>::max_exponent;		\
+  const int  numeric_limits<unsigned __INT_N_TYPE>::max_exponent10;		\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::has_infinity;		\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::has_quiet_NaN;		\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::has_signaling_NaN;		\
+  const float_denorm_style numeric_limits<unsigned __INT_N_TYPE>::has_denorm;	\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::has_denorm_loss;		\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::is_iec559;			\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::is_bounded;			\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::is_modulo;			\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::traps;			\
+  const bool numeric_limits<unsigned __INT_N_TYPE>::tinyness_before;		\
+  const float_round_style numeric_limits<unsigned __INT_N_TYPE>::round_style;
+
+#ifdef __GLIBCXX_TYPE_INT_N_0
+  INT_N (__GLIBCXX_TYPE_INT_N_0)
+#endif
+#ifdef __GLIBCXX_TYPE_INT_N_1
+  INT_N (__GLIBCXX_TYPE_INT_N_1)
+#endif
+#ifdef __GLIBCXX_TYPE_INT_N_2
+  INT_N (__GLIBCXX_TYPE_INT_N_2)
+#endif
+#ifdef __GLIBCXX_TYPE_INT_N_3
+  INT_N (__GLIBCXX_TYPE_INT_N_3)
 #endif
 
   // float