[Bug target/49437] interrupt return pop sometimes corrupts sp

["jye2 at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49437

--- Comment #3 from jye2 at gcc dot gnu.org 2011-08-19 08:28:15 UTC ---
Author: jye2
Date: Fri Aug 19 08:28:08 2011
New Revision: 177891

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177891
Log:
       PR target/49437
       * config/arm/arm.c (arm_output_epilogue): Properly handle epilogue
       when stack was realigned in interrupt handler prologue.

testsuite:

       PR target/49437
       * gcc.target/arm/handler-align.c: New test.
       * lib/target-supports.exp (check_effective_target_arm_cortex_m):
         New Function.


Added:
    trunk/gcc/testsuite/gcc.target/arm/handler-align.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/arm.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/lib/target-supports.exp