[Bug rtl-optimization/54294] [4.8 Regression]: [alpha] Bootstrap comparison failure due to fwprop handling of debug insns

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54294

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-08-20 
18:56:58 UTC ---
Author: jakub
Date: Mon Aug 20 18:56:49 2012
New Revision: 190541

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190541
Log:
    PR rtl-optimization/54294
    * fwprop.c (all_uses_available_at): Ignore debug insns in between
    def_insn and target_insn when checking whether the shortcut is
    possible.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fwprop.c