[Bug ipa/63649] [5 Regression] ICE: Segmentation fault in gcc/ipa-comdats.c:332

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63649

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |trippels at gcc dot gnu.org

--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Possible fix:

diff --git a/gcc/ipa-comdats.c b/gcc/ipa-comdats.c
index b270d9717b27..8843410545e0 100644
--- a/gcc/ipa-comdats.c
+++ b/gcc/ipa-comdats.c
@@ -317,8 +317,11 @@ ipa_comdats (void)
          && !symbol->alias
          && symbol->real_symbol_p ())
        {
-         tree group = *map.get (symbol);
+         tree *val = map.get (symbol);
+         if (!val)
+           continue;

+         group = *val;
          if (group == error_mark_node)
            continue;
          if (dump_file)