[Bug middle-end/119507] only the comdat functions before normal functions get their own gcc_except_table section (unless using -ffunction-sections)

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119507

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
           Assignee|unassigned at gcc dot gnu.org      |pinskia at gcc dot 
gnu.org
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2025-03-29
      Known to fail|                            |4.8.0

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.

This has been true since the support for moving comdat gcc_except_table to
their own section in r0-118218-g3e6011cfebedfb (which was first included in GCC
4.8.0).


Something like this:
```
diff --git a/gcc/except.cc b/gcc/except.cc
index d5eb9274a62..c385473de8e 100644
--- a/gcc/except.cc
+++ b/gcc/except.cc
@@ -2935,7 +2935,14 @@ switch_to_exception_section (const char * ARG_UNUSED
(fnname))
 {
   section *s;

-  if (exception_section)
+  if (exception_section
+  /* Don't use the cached section for comdat if it will be different. */
+#ifdef HAVE_LD_EH_GC_SECTIONS
+      || !(targetm_common.have_named_sections
+          && DECL_COMDAT_GROUP (current_function_decl)
+          && HAVE_COMDAT_GROUP)
+#endif
+     )
     s = exception_section;
   else
     {

```