i386.c (ix86_frame_pointer_required): Require frame-pointer, if setjmp is used for 32-bit ms-abi.

        * config/i386/i386.c (ix86_frame_pointer_required): Require
        frame-pointer, if setjmp is used for 32-bit ms-abi.

From-SVN: r180423

gcc/ChangeLog

+2011-10-25  Kai Tietz  <ktietz@redhat.com>
+
+	* config/i386/i386.c (ix86_frame_pointer_required): Require
+	frame-pointer, if setjmp is used for 32-bit ms-abi.
+
 2011-10-24  Michael Meissner  <meissner@linux.vnet.ibm.com>
 
 	* builtins.c (set_builtin_user_assembler_name): Remove extra

gcc/config/i386/i386.c

@@ -8390,6 +8390,10 @@ ix86_frame_pointer_required (void)
   if (SUBTARGET_FRAME_POINTER_REQUIRED)
     return true;
 
+  /* For older 32-bit runtimes setjmp requires valid frame-pointer.  */
+  if (TARGET_32BIT_MS_ABI && cfun->calls_setjmp)
+    return true;
+
   /* In ix86_option_override_internal, TARGET_OMIT_LEAF_FRAME_POINTER
      turns off the frame pointer by default.  Turn it back on now if
      we've not got a leaf function.  */