[PATCH] Fix mangle_conv_op_name_for_type

[Franz Sirl]

At 17:00 23.06.2003, Jakub Jelinek wrote:
>Hi!
>
>GCC post 2003-06-17 segfaults when the hash table in
>mangle_conv_op_name_for_type is htab_expand'ed for the first time.
>Committed as obvious to TRUNK and 3.3 branch.
>
>2003-06-23  Jakub Jelinek  <jakub@redhat.com>
>
>         * mangle.c (hash_type): val is the TREE_LIST itself, not a pointer
>         to it.
>
>         * g++.dg/opt/operator1.C: New test.

This is PR 11249 BTW. Unfortunately it seems it's only a partial fix. Try 
the attached testcase to see the tree check failure reported in PR 11274.

Franz.
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