re PR c/10375 (Function-local external decls of builtins don't get attributes)

2003-04-17  Roger Sayle  <roger@eyesopen.com>

	PR c/10375
	* c-decl.c (duplicate_decls): Preserve "const" and "noreturn"
	function attributes.

	* cp/decl.c (duplicate_decls): Preserve "const", "noreturn"
	and "nothrow" function attributes.

	* f/com.c (duplicate_decls): Preserve "const" and "noreturn"
	function attributes.

From-SVN: r65753

gcc/ChangeLog

+2003-04-17  Roger Sayle  <roger@eyesopen.com>
+
+	PR c/10375
+	* c-decl.c (duplicate_decls): Preserve "const" and "noreturn"
+	function attributes.
+
 2003-04-17  Janis Johnson  <janis187@us.ibm.com>
 
 	* doc/sourcebuild.texi (Test Suites): Document support for testing

gcc/c-decl.c

@@ -1377,6 +1377,8 @@ duplicate_decls (newdecl, olddecl, different_binding_level)
 	  DECL_NO_LIMIT_STACK (newdecl) |= DECL_NO_LIMIT_STACK (olddecl);
 	  DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (newdecl)
 	    |= DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (olddecl);
+	  TREE_THIS_VOLATILE (newdecl) |= TREE_THIS_VOLATILE (olddecl);
+	  TREE_READONLY (newdecl) |= TREE_READONLY (olddecl);
 	  DECL_IS_MALLOC (newdecl) |= DECL_IS_MALLOC (olddecl);
 	  DECL_IS_PURE (newdecl) |= DECL_IS_PURE (olddecl);
 	}

gcc/cp/ChangeLog

+2003-04-17  Roger Sayle  <roger@eyesopen.com>
+
+	PR c/10375
+	* decl.c (duplicate_decls): Preserve "const", "noreturn" and
+	"nothrow" function attributes.
+
 2003-04-17  Kriang Lerdsuwanakij  <lerdsuwa@users.sourceforge.net>
 
 	PR c++/10347

gcc/cp/decl.c

@@ -3360,6 +3360,9 @@ duplicate_decls (tree newdecl, tree olddecl)
 	  DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (newdecl)
 	    |= DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (olddecl);
 	  DECL_NO_LIMIT_STACK (newdecl) |= DECL_NO_LIMIT_STACK (olddecl);
+	  TREE_THIS_VOLATILE (newdecl) |= TREE_THIS_VOLATILE (olddecl);
+	  TREE_READONLY (newdecl) |= TREE_READONLY (olddecl);
+	  TREE_NOTHROW (newdecl) |= TREE_NOTHROW (olddecl);
 	  DECL_IS_MALLOC (newdecl) |= DECL_IS_MALLOC (olddecl);
 	  DECL_IS_PURE (newdecl) |= DECL_IS_PURE (olddecl);
 	  /* Keep the old RTL.  */

gcc/f/ChangeLog

+2003-04-17  Roger Sayle  <roger@eyesopen.com>
+
+	PR c/10375
+	* com.c (duplicate_decls): Preserve "const" and "noreturn"
+	function attributes.
+
 2003-04-13  Roger Sayle  <roger@eyesopen.com>
 
 	* com.c (duplicate_decls): Preserve pure and malloc attributes.

gcc/f/com.c

@@ -13335,6 +13335,8 @@ duplicate_decls (tree newdecl, tree olddecl)
 	{
 	  DECL_STATIC_CONSTRUCTOR(newdecl) |= DECL_STATIC_CONSTRUCTOR(olddecl);
 	  DECL_STATIC_DESTRUCTOR (newdecl) |= DECL_STATIC_DESTRUCTOR (olddecl);
+	  TREE_THIS_VOLATILE (newdecl) |= TREE_THIS_VOLATILE (olddecl);
+	  TREE_READONLY (newdecl) |= TREE_READONLY (olddecl);
 	  DECL_IS_MALLOC (newdecl) |= DECL_IS_MALLOC (olddecl);
 	  DECL_IS_PURE (newdecl) |= DECL_IS_PURE (olddecl);
 	}

gcc/testsuite/gcc.c-torture/execute/builtin-noret-2.x

-# This test fails at -O1 and higher.
-set torture_eval_before_compile {
-    global compiler_conditional_xfail_data
-    set compiler_conditional_xfail_data {
-        "Fails at all optimization levels but -O0, see PR10375." \
-        { "*-*-*" } \
-        { "-O*" } \
-        { "-O0" }
-    }
-}
-
-return 0