c++: rename IS_SAME_AS trait code to IS_SAME

... to match the trait's canonical spelling __is_same instead
of its alternative spelling __is_same_as.

gcc/c-family/ChangeLog:

	* c-common.cc (c_common_reswords): Use RID_IS_SAME instead of
	RID_IS_SAME_AS.

gcc/cp/ChangeLog:

	* constraint.cc (diagnose_trait_expr): Use CPTK_IS_SAME instead
	of CPTK_IS_SAME_AS.
	* cp-trait.def (IS_SAME_AS): Rename to ...
	(IS_SAME): ... this.
	* pt.cc (alias_ctad_tweaks): Use CPTK_IS_SAME instead of
	CPTK_IS_SAME_AS.
	* semantics.cc (trait_expr_value): Likewise.
	(finish_trait_expr): Likewise.

5 files changed, 6 insertions, 6 deletions

diff --git a/gcc/c-family/c-common.cc b/gcc/c-family/c-common.cc
index 3c60a89..4f9878d 100644
--- a/gcc/c-family/c-common.cc
+++ b/gcc/c-family/c-common.cc
@@ -509,7 +509,7 @@ const struct c_common_resword c_common_reswords[] =
 #include "cp/cp-trait.def"
 #undef DEFTRAIT
   /* An alias for __is_same.  */
-  { "__is_same_as",	RID_IS_SAME_AS, D_CXXONLY },
+  { "__is_same_as",	RID_IS_SAME,	D_CXXONLY },
 
   /* C++ transactional memory.  */
   { "synchronized",	RID_SYNCHRONIZED, D_CXX_OBJC | D_TRANSMEM },
diff --git a/gcc/cp/constraint.cc b/gcc/cp/constraint.cc
index f414557..74898ca 100644
--- a/gcc/cp/constraint.cc
+++ b/gcc/cp/constraint.cc
@@ -3649,7 +3649,7 @@ diagnose_trait_expr (tree expr, tree args)
     case CPTK_IS_POLYMORPHIC:
       inform (loc, "  %qT is not a polymorphic type", t1);
       break;
-    case CPTK_IS_SAME_AS:
+    case CPTK_IS_SAME:
       inform (loc, "  %qT is not the same as %qT", t1, t2);
       break;
     case CPTK_IS_STD_LAYOUT:
diff --git a/gcc/cp/cp-trait.def b/gcc/cp/cp-trait.def
index 922348a..823899a 100644
--- a/gcc/cp/cp-trait.def
+++ b/gcc/cp/cp-trait.def
@@ -75,7 +75,7 @@ DEFTRAIT_EXPR (IS_NOTHROW_CONVERTIBLE, "__is_nothrow_convertible", 2)
 DEFTRAIT_EXPR (IS_POINTER_INTERCONVERTIBLE_BASE_OF, "__is_pointer_interconvertible_base_of", 2)
 DEFTRAIT_EXPR (IS_POD, "__is_pod", 1)
 DEFTRAIT_EXPR (IS_POLYMORPHIC, "__is_polymorphic", 1)
-DEFTRAIT_EXPR (IS_SAME_AS, "__is_same", 2)
+DEFTRAIT_EXPR (IS_SAME, "__is_same", 2)
 DEFTRAIT_EXPR (IS_STD_LAYOUT, "__is_standard_layout", 1)
 DEFTRAIT_EXPR (IS_TRIVIAL, "__is_trivial", 1)
 DEFTRAIT_EXPR (IS_TRIVIALLY_ASSIGNABLE, "__is_trivially_assignable", 2)
diff --git a/gcc/cp/pt.cc b/gcc/cp/pt.cc
index 258f76d..bce2a77 100644
--- a/gcc/cp/pt.cc
+++ b/gcc/cp/pt.cc
@@ -30029,7 +30029,7 @@ alias_ctad_tweaks (tree tmpl, tree uguides)
 	      /* FIXME this should mean they don't compare as equivalent.  */
 	      || dependent_alias_template_spec_p (atype, nt_opaque))
 	    {
-	      tree same = finish_trait_expr (loc, CPTK_IS_SAME_AS, atype, ret);
+	      tree same = finish_trait_expr (loc, CPTK_IS_SAME, atype, ret);
 	      ci = append_constraint (ci, same);
 	    }
 
diff --git a/gcc/cp/semantics.cc b/gcc/cp/semantics.cc
index 4fb0675..5cc5a00 100644
--- a/gcc/cp/semantics.cc
+++ b/gcc/cp/semantics.cc
@@ -12007,7 +12007,7 @@ trait_expr_value (cp_trait_kind kind, tree type1, tree type2)
     case CPTK_IS_POLYMORPHIC:
       return CLASS_TYPE_P (type1) && TYPE_POLYMORPHIC_P (type1);
 
-    case CPTK_IS_SAME_AS:
+    case CPTK_IS_SAME:
       return same_type_p (type1, type2);
 
     case CPTK_IS_STD_LAYOUT:
@@ -12193,7 +12193,7 @@ finish_trait_expr (location_t loc, cp_trait_kind kind, tree type1, tree type2)
     case CPTK_IS_CLASS:
     case CPTK_IS_ENUM:
     case CPTK_IS_UNION:
-    case CPTK_IS_SAME_AS:
+    case CPTK_IS_SAME:
       break;
 
     case CPTK_IS_LAYOUT_COMPATIBLE: