[PATCH 2/3] [lambda] Avoid crash on symbol table writing when generic lambda declared with iostream (or potentially other code) included.

[Adam Butcher]

---
 gcc/symtab.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/gcc/symtab.c b/gcc/symtab.c
index 85d47a8..1ada0f7 100644
--- a/gcc/symtab.c
+++ b/gcc/symtab.c
@@ -116,6 +116,15 @@ insert_to_assembler_name_hash (symtab_node node, bool 
with_clones)
 
       tree name = DECL_ASSEMBLER_NAME (node->symbol.decl);
 
+
+      // FIXME: how does this nullptr get here when declaring a C++
+      // FIXME: generic lambda and including iostream (or presumably
+      // FIXME: any other header with whatever property is triggering
+      // FIXME: this)!?
+      //
+      if (name == 0)
+       return;
+
       aslot = htab_find_slot_with_hash (assembler_name_hash, name,
                                        decl_assembler_name_hash (name),
                                        INSERT);
@@ -156,6 +165,15 @@ unlink_from_assembler_name_hash (symtab_node node, bool 
with_clones)
       else
        {
          tree name = DECL_ASSEMBLER_NAME (node->symbol.decl);
+
+         // FIXME: how does this nullptr get here when declaring a C++
+         // FIXME: generic lambda and including iostream (or presumably
+         // FIXME: any other header with whatever property is triggering
+         // FIXME: this)!?
+         //
+         if (name == 0)
+           return;
+
           void **slot;
          slot = htab_find_slot_with_hash (assembler_name_hash, name,
                                           decl_assembler_name_hash (name),
-- 
1.8.3