[Bug target/60700] [4.8 Regression] missing dependency between %ax and %eax when compiling 32bit on 64bit

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60700

--- Comment #4 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Mon Mar 31 16:21:30 2014
New Revision: 208963

URL: http://gcc.gnu.org/viewcvs?rev=208963&root=gcc&view=rev
Log:
Backport revision 201326

gcc/

    PR rtl-optimization/60700
    2013-07-30  Zhenqiang Chen  <zhenqiang.chen@linaro.org>

    PR rtl-optimization/57637
    * function.c (move_insn_for_shrink_wrap): Also check the
    GEN set of the LIVE problem for the liveness analysis
    if it exists, otherwise give up.

gcc/testsuite/

    PR rtl-optimization/60700
    2013-07-30  Zhenqiang Chen  <zhenqiang.chen@linaro.org>

    * gcc.target/arm/pr57637.c: New testcase.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.target/arm/pr57637.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/function.c
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog