[Bug target/82221] internal compiler error: in print_reg, at config/i386/i386.c:17656

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82221

--- Comment #10 from H.J. Lu <hjl.tools at gmail dot com> ---
Try this one:

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 4f0414ffa9d..ee27273c80d 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -13801,6 +13801,7 @@ ix86_get_drap_rtx (void)
   /* We must use DRAP if there are outgoing arguments on stack and
      ACCUMULATE_OUTGOING_ARGS is false.  */
   if (ix86_force_drap
+      || !crtl->sp_is_unchanging
       || (cfun->machine->outgoing_args_on_stack
     && !ACCUMULATE_OUTGOING_ARGS))
     crtl->need_drap = true;

to see what the generated code looks like.