re PR c/37772 (ICE with empty asm statement)

	PR c/37772
	* c-parser.c (c_parser_asm_statement): Skip until close paren and
	return if c_parser_asm_string_literal returned NULL.

	* gcc.dg/pr37772.c: New test.
	* g++.dg/ext/asm11.C: New test.

From-SVN: r145401

gcc/ChangeLog

+2009-04-01  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/37772
+	* c-parser.c (c_parser_asm_statement): Skip until close paren and
+	return if c_parser_asm_string_literal returned NULL.
+
 2009-04-01  Nick Clifton  <nickc@redhat.com>
 
 	* config/m32c/m32c.h (LIBGCC2_UNITS_PER_WORD): Define if not

gcc/c-parser.c

@@ -4193,6 +4193,12 @@ c_parser_asm_statement (c_parser *parser)
       return NULL_TREE;
     }
   str = c_parser_asm_string_literal (parser);
+  if (str == NULL_TREE)
+    {
+      parser->lex_untranslated_string = false;
+      c_parser_skip_until_found (parser, CPP_CLOSE_PAREN, NULL);
+      return NULL_TREE;
+    }
   if (c_parser_next_token_is (parser, CPP_CLOSE_PAREN))
     {
       simple = true;

gcc/testsuite/ChangeLog

+2009-04-01  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/37772
+	* gcc.dg/pr37772.c: New test.
+	* g++.dg/ext/asm11.C: New test.
+
 2009-04-01  H.J. Lu  <hongjiu.lu@intel.com>
 
-	(restore_ld_library_path_env_vars): Always restore GCC_EXEC_PREFIX
-	to its original value, or unset if it was not defined.
+	* lib/target-libpath.exp (restore_ld_library_path_env_vars): Always
+	restore GCC_EXEC_PREFIX to its original value, or unset if it was not
+	defined.
 
 2009-03-31  Jason Merrill  <jason@redhat.com>
 

gcc/testsuite/g++.dg/ext/asm11.C

+// PR c/37772
+// { dg-do compile }
+// { dg-options "" }
+
+void
+foo ()
+{
+  int i;
+  asm ();		  // { dg-error "expected string-literal before" }
+  asm (1);		  // { dg-error "expected string-literal before" }
+  asm (int);		  // { dg-error "expected string-literal before" }
+  asm (: "=r" (i));	  // { dg-error "expected string-literal before" }
+  asm (1 : "=r" (i));	  // { dg-error "expected string-literal before" }
+  asm (int : "=r" (i));	  // { dg-error "expected string-literal before" }
+  asm (: : "r" (i));	  // { dg-error "expected string-literal before" }
+  asm (1 : : "r" (i));	  // { dg-error "expected string-literal before" }
+  asm (int : : "r" (i));  // { dg-error "expected string-literal before" }
+  asm (: : : "memory");	  // { dg-error "expected string-literal before" }
+  asm (1 : : : "memory"); // { dg-error "expected string-literal before" }
+}

gcc/testsuite/gcc.dg/pr37772.c

+/* PR c/37772 */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+void
+foo ()
+{
+  int i;
+  asm ();		  /* { dg-error "expected string literal before" } */
+  asm (1);		  /* { dg-error "expected string literal before" } */
+  asm (int);		  /* { dg-error "expected string literal before" } */
+  asm (: "=r" (i));	  /* { dg-error "expected string literal before" } */
+  asm (1 : "=r" (i));	  /* { dg-error "expected string literal before" } */
+  asm (int : "=r" (i));	  /* { dg-error "expected string literal before" } */
+  asm (: : "r" (i));	  /* { dg-error "expected string literal before" } */
+  asm (1 : : "r" (i));	  /* { dg-error "expected string literal before" } */
+  asm (int : : "r" (i));  /* { dg-error "expected string literal before" } */
+  asm (: : : "memory");	  /* { dg-error "expected string literal before" } */
+  asm (1 : : : "memory"); /* { dg-error "expected string literal before" } */
+}