[Bug rtl-optimization/38644] [4.4/4.5/4.6/4.7 Regression] Optimization flag -O1 -fschedule-insns2 causes wrong code

[jye2 at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38644

--- Comment #59 from jye2 at gcc dot gnu.org 2011-11-04 16:50:11 UTC ---
Author: jye2
Date: Fri Nov  4 16:50:04 2011
New Revision: 180964

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=180964
Log:
2011-11-04  Jiangning Liu  <jiangning....@arm.com>

    PR rtl-optimization/38644
    * config/arm/arm.c (thumb1_expand_epilogue): Add memory barrier
    for epilogue having stack adjustment.

    testcase:
    * gcc.target/arm/stack-red-zone.c: New.

Added:
    trunk/gcc/testsuite/gcc.target/arm/stack-red-zone.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/arm.c
    trunk/gcc/testsuite/ChangeLog