[Bug target/104327] [12 Regression] Inlining error on s390x since r12-1039

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104327

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |NEW
           Assignee|marxin at gcc dot gnu.org          |unassigned at gcc dot gnu.org

--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Andreas Krebbel from comment #5)
> Yes, that's the right fix I think. Thanks!
> MVCLE is a shorter version of a loop doing MVCs but has some startup
> overhead.

I would factor it out a bit:

diff --git a/gcc/config/s390/s390.cc b/gcc/config/s390/s390.cc
index 2db12d4ba4b..95351c8a002 100644
--- a/gcc/config/s390/s390.cc
+++ b/gcc/config/s390/s390.cc
@@ -16105,8 +16105,10 @@ s390_can_inline_p (tree caller, tree callee)
   struct cl_target_option *callee_opts = TREE_TARGET_OPTION (callee_tree);
   bool ret = true;

-  if ((caller_opts->x_target_flags & ~(MASK_SOFT_FLOAT | MASK_HARD_DFP))
-      != (callee_opts->x_target_flags & ~(MASK_SOFT_FLOAT | MASK_HARD_DFP)))
+  unsigned HOST_WIDE_INT inline_safe_mask
+    = MASK_SOFT_FLOAT | MASK_HARD_DFP | MASK_MVCLE;
+  if ((caller_opts->x_target_flags & ~inline_safe_mask)
+      != (callee_opts->x_target_flags & ~inline_safe_mask))
     ret = false;

   /* Don't inline functions to be compiled for a more recent arch into a

@Andreas: Can you please add a test case for it, test it and finish the patch?
Thanks.