re PR target/67265 ([x86] 'asm' operand has impossible constraints with -fstack-check)

	PR target/67265
	* config/i386/i386.c (ix86_finalize_stack_realign_flags): Likewise.

From-SVN: r230170

gcc/config/i386/i386.c

@@ -12470,7 +12470,11 @@ ix86_finalize_stack_realign_flags (void)
       && !crtl->accesses_prior_frames
       && !cfun->calls_alloca
       && !crtl->calls_eh_return
-      && !(flag_stack_check && STACK_CHECK_MOVING_SP)
+      /* See ira_setup_eliminable_regset for the rationale.  */
+      && !(STACK_CHECK_MOVING_SP
+	   && flag_stack_check
+	   && flag_exceptions
+	   && cfun->can_throw_non_call_exceptions)
       && !ix86_frame_pointer_required ()
       && get_frame_size () == 0
       && ix86_nsaved_sseregs () == 0