[Bug tree-optimization/62238] [4.9 Regression] ICE with LTO on valid code on x86_64-linux-gnu in verify_ssa (in 64-bit mode)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62238

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Nov 26 09:43:39 2014
New Revision: 218074

URL: https://gcc.gnu.org/viewcvs?rev=218074&root=gcc&view=rev
Log:
2014-11-26  Richard Biener  <rguent...@suse.de>

    PR tree-optimization/62238
    * tree-predcom.c (ref_at_iteration): Unshare the expression
    before gimplifying it.
    (prepare_initializers_chain): Discard unused seq.

    * gcc.dg/torture/pr62238.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr62238.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-predcom.c