[Bug bootstrap/49815] [4.7 regression] ICE in cselib_record_set, at cselib.c:2241 compiling 64-bit libjava on SPARC

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49815

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-07-22 14:14:07 UTC ---
Ah, I see.  adjust_insn call isn't guarded by MAY_HAVE_DEBUG_STMTS, therefore
if -fvar-tracking-assignments gives up due to insanely large hash tables, it
won't be reset during vt_finalize.

BTW, wouldn't it be better to model the insn completely rather than partially?
In particular, in addition to the arguments being copied have also the
copy/clobber for all the other arguments, except for the sp = sp - something
which would be another set.