[Bug c++/13092] [3.4 regression] Segfault in convert_nontype_argument

[giovannibajo at libero dot it]

------- Additional Comments From giovannibajo at libero dot it  2003-11-21 23:49 -------
Thanks for the explanation Kriang, I'm still trying to make a sense out of all 
these trees. It turned out I was fighting windmills, the problem is that we 
were trying to tsubst too early. I'm testing this patch right now, it fixes the 
regression and I'm confident it's doing the right thing.

Index: pt.c
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/cp/pt.c,v
retrieving revision 1.791
diff -c -p -r1.791 pt.c
*** pt.c        24 Oct 2003 07:59:40 -0000      1.791
--- pt.c        21 Nov 2003 23:46:26 -0000
*************** convert_template_argument (tree parm,
*** 3549,3555 ****
        if (invalid_nontype_parm_type_p (t, complain))
          return error_mark_node;

!       if (!uses_template_parms (arg) && !uses_template_parms (t))
        /* We used to call digest_init here.  However, digest_init
           will report errors, which we don't want when complain
           is zero.  More importantly, digest_init will try too
--- 3549,3556 ----
        if (invalid_nontype_parm_type_p (t, complain))
          return error_mark_node;

!       if (!uses_template_parms (arg) && !uses_template_parms (t)
!           && TREE_TYPE (arg))
        /* We used to call digest_init here.  However, digest_init
           will report errors, which we don't want when complain
           is zero.  More importantly, digest_init will try too


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13092