[Bug target/51643] Incorrect code produced for tail-call of weak function with -O2/-O3 option

[rearnsha at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51643

--- Comment #9 from Richard Earnshaw <rearnsha at gcc dot gnu.org> 2011-12-22 
14:28:45 UTC ---
Author: rearnsha
Date: Thu Dec 22 14:28:39 2011
New Revision: 182622

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182622
Log:
    PR target/51643
    * arm.c (arm_function_ok_for_sibcall): Don't try to tailcall a
    weak function on bare-metal EABI targets.

    * gcc.target/arm/sibcall-2.c: New test.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/gcc.target/arm/sibcall-2.c
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/config/arm/arm.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog