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

[liujiangning at gcc dot gnu.org]

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

--- Comment #61 from Jiangning Liu <liujiangning at gcc dot gnu.org> 2011-11-16 
09:47:01 UTC ---
Author: liujiangning
Date: Wed Nov 16 09:46:58 2011
New Revision: 181406

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181406
Log:
2011-11-16  Jiangning Liu  <jiangning....@arm.com>

        Backport r180964 from mainline
        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.

testsuite:

2011-11-16  Jiangning Liu  <jiangning....@arm.com>

        Backport r180964 from mainline
        2011-11-04  Jiangning Liu  <jiangning....@arm.com>

        PR rtl-optimization/38644
        * gcc.target/arm/stack-red-zone.c: New.

Added:
   
branches/ARM/embedded-4_6-branch/gcc/testsuite/gcc.target/arm/stack-red-zone.c
Modified:
    branches/ARM/embedded-4_6-branch/gcc/ChangeLog.arm
    branches/ARM/embedded-4_6-branch/gcc/config/arm/arm.c
    branches/ARM/embedded-4_6-branch/gcc/testsuite/ChangeLog.arm