[Bug rtl-optimization/57003] [4.8/4.9/5.0 Regression] gcc breaks -O2 optimization with Wine(64) - links/info/bisect of commits included

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57003

--- Comment #30 from uros at gcc dot gnu.org ---
Author: uros
Date: Thu Oct  9 08:22:23 2014
New Revision: 216030

URL: https://gcc.gnu.org/viewcvs?rev=216030&root=gcc&view=rev
Log:
    Backport from mainline
    2014-10-09  Uros Bizjak  <ubizjak@gmail.com>

    PR rtl-optimization/57003
    * regcprop.c (copyprop_hardreg_forward_1): If ksvd.ignore_set_reg,
    also check CALL_INSN_FUNCTION_USAGE for clobbers again after
    killing regs_invalidated_by_call.


Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/regcprop.c