c-parser.c (c_parser_postfix_expression): Add pedwarn.

* c-parser.c (c_parser_postfix_expression) <case RID_FUNCTION_NAME>:
	Add pedwarn.
	(c_parser_postfix_expression) <case RID_PRETTY_FUNCTION_NAME>:
	Likewise.
	(c_parser_postfix_expression) <case RID_C99_FUNCTION_NAME>: Likewise.

	* gcc.dg/concat.c: Add dg-options.
	* gcc.dg/func-outside-2.c: Add __extension__.
	* gcc.dg/pr19967.c: Use -std=c99.
	* gcc.dg/pr22458-1.c: Add dg-options.
	* gcc.dg/pr33676.c: Add dg-options.
	* gcc.dg/gnu-predef-1.c: New test.
	* gcc.dg/c90-func-1.c: New test.
	* gcc.dg/c90-func-2.c: New test.
	* gcc.dg/c90-func-2.h: New test.

From-SVN: r213875

gcc/c/ChangeLog

@@ -1,3 +1,11 @@
+2014-08-12  Marek Polacek  <polacek@redhat.com>
+
+	* c-parser.c (c_parser_postfix_expression) <case RID_FUNCTION_NAME>:
+	Add pedwarn.
+	(c_parser_postfix_expression) <case RID_PRETTY_FUNCTION_NAME>:
+	Likewise.
+	(c_parser_postfix_expression) <case RID_C99_FUNCTION_NAME>: Likewise.
+
 2014-08-10 Marek Polacek  <polacek@redhat.com>
 
 	PR c/51849

gcc/c/c-parser.c

@@ -7136,8 +7136,24 @@ c_parser_postfix_expression (c_parser *parser)
       switch (c_parser_peek_token (parser)->keyword)
 	{
 	case RID_FUNCTION_NAME:
+	  pedwarn (loc, OPT_Wpedantic,  "ISO C does not support "
+		   "%<__FUNCTION__%> predefined identifier");
+	  expr.value = fname_decl (loc,
+				   c_parser_peek_token (parser)->keyword,
+				   c_parser_peek_token (parser)->value);
+	  c_parser_consume_token (parser);
+	  break;
 	case RID_PRETTY_FUNCTION_NAME:
+	  pedwarn (loc, OPT_Wpedantic,  "ISO C does not support "
+		   "%<__PRETTY_FUNCTION__%> predefined identifier");
+	  expr.value = fname_decl (loc,
+				   c_parser_peek_token (parser)->keyword,
+				   c_parser_peek_token (parser)->value);
+	  c_parser_consume_token (parser);
+	  break;
 	case RID_C99_FUNCTION_NAME:
+	  pedwarn_c90 (loc, OPT_Wpedantic,  "ISO C90 does not support "
+		   "%<__func__%> predefined identifier");
 	  expr.value = fname_decl (loc,
 				   c_parser_peek_token (parser)->keyword,
 				   c_parser_peek_token (parser)->value);

gcc/testsuite/ChangeLog

@@ -1,3 +1,15 @@
+2014-08-12  Marek Polacek  <polacek@redhat.com>
+
+	* gcc.dg/concat.c: Add dg-options.
+	* gcc.dg/func-outside-2.c: Add __extension__.
+	* gcc.dg/pr19967.c: Use -std=c99.
+	* gcc.dg/pr22458-1.c: Add dg-options.
+	* gcc.dg/pr33676.c: Add dg-options.
+	* gcc.dg/gnu-predef-1.c: New test.
+	* gcc.dg/c90-func-1.c: New test.
+	* gcc.dg/c90-func-2.c: New test.
+	* gcc.dg/c90-func-2.h: New test.
+
 2014-08-12  Janis Johnson  <janisjo@codesourcery.com>
 
 	* lib/target/supports.exp

gcc/testsuite/gcc.dg/c90-func-1.c

@@ -0,0 +1,10 @@
+/* Test that we diagnose the __func__ predefined identifier in
+   C90 pedantic mode.  */
+/* { dg-do compile } */
+/* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
+
+void
+foo (void)
+{
+  const char *s = __func__; /* { dg-error " ISO C90 does not support .__func__. predefined identifier" } */
+}

gcc/testsuite/gcc.dg/c90-func-2.c

@@ -0,0 +1,12 @@
+/* Test that we don't pedwarn about __func__ predefined identifier in
+   a system header in C90 pedantic mode.  */
+/* { dg-do compile } */
+/* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
+
+#include "c90-func-2.h"
+
+void
+foo (void)
+{
+  const char *s = FN;
+}

gcc/testsuite/gcc.dg/c90-func-2.h

@@ -0,0 +1,2 @@
+#pragma GCC system_header
+#define FN __func__

gcc/testsuite/gcc.dg/concat.c

@@ -1,6 +1,7 @@
 /* Copyright (C) 2001 Free Software Foundation, Inc.  */
 
 /* { dg-do compile } */
+/* { dg-options "" } */
 
 /* Test we output an error for concatenation of artificial strings.
 

gcc/testsuite/gcc.dg/func-outside-2.c

@@ -4,6 +4,6 @@
 /* { dg-do compile } */
 /* { dg-options "-pedantic-errors" } */
 
-const char *a = __func__; /* { dg-error "'__func__' is not defined outside of function scope" "undef" } */
+__extension__ const char *a = __func__; /* { dg-error "'__func__' is not defined outside of function scope" "undef" } */
-const char *b = __FUNCTION__;
+__extension__ const char *b = __FUNCTION__;
-const char *c = __PRETTY_FUNCTION__;
+__extension__ const char *c = __PRETTY_FUNCTION__;

gcc/testsuite/gcc.dg/pr19967.c

@@ -4,7 +4,7 @@
    be const char *.  */
 
 /* { dg-do compile } */
-/* { dg-options "-pedantic" } */
+/* { dg-options "-pedantic -std=c99" } */
 
 char *strchr(const char *, int);
 char *strrchr(const char *, int);

gcc/testsuite/gcc.dg/pr22458-1.c

@@ -1,4 +1,6 @@
 /* { dg-error "expected declaration or statement" "" { target *-*-* } 0 } */
+/* { dg-options "" } */
+
 void foo()
 {
      __PRETTY_FUNCTION__;

gcc/testsuite/gcc.dg/pr33676.c

@@ -1,4 +1,5 @@
 /* { dg-do run } */
+/* { dg-options "" } */
 /* { dg-options "-O0 -mtune=i386 -fomit-frame-pointer" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
 
 __attribute__((noreturn,noinline)) void abrt (const char *fi, const char *fu)