[Bug tree-optimization/54647] [4.8 Regression] Segmentation fault in get_expr_value_id with -O2

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54647



--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-21 
09:45:27 UTC ---

Hm.  We are now facing COND_EXPRs in VN / PRE.  But COND_EXPRs have an

embedded tree expression for the condition which we have no way of

(easily) generating.



Let me try to fix this without simply giving up on optimizing those

COND_EXPRs.