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

[jye2 at gcc dot gnu.org]

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

--- Comment #16 from jye2 at gcc dot gnu.org 2012-06-08 08:58:02 UTC ---
Author: jye2
Date: Fri Jun  8 08:57:53 2012
New Revision: 188332

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188332
Log:
2012-06-08  Joey Ye  <joey.ye@arm.com>

    Backport r184442 from mainline
    2012-02-21  Richard Earnshaw  <rearnsha@arm.com>

    PR target/52294
    * thumb2.md (thumb2_shiftsi3_short): Split register and         
    immediate shifts.  For register shifts tie operands 0 and 1.
    (peephole2 for above): Check that register-controlled shifts
    have suitably tied operands.

    Backport r183756 from mainline
    2012-01-31  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

    * config/arm/thumb2.md (thumb2_mov_notscc): Use MVN for true
    condition.

    Backport r183349 from mainline
    2012-01-20  Jakub Jelinek  <jakub@redhat.com>

    PR target/51915
    * config/arm/arm.c (arm_count_output_move_double_insns): Call
    output_move_double on a copy of operands array.

    Backport r183095 from mainline
    2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

    * config/arm/arm.md (mov_notscc): Use MVN for false condition.

    Backport r182628 from mainline
    2011-12-21  Richard Earnshaw  <rearnsha@arm.com>

    PR target/51643
    * arm.c (arm_function_ok_for_sibcall): Use DECL_WEAK in previous
    change.

    Backport r182621 from mainline
    2011-12-21  Richard Earnshaw  <rearnsha@arm.com>

    PR target/51643
    * arm.c (arm_function_ok_for_sibcall): Don't try to tailcall a
    weak function on bare-metal EABI targets.

Testsuite:
    Backport r183349 from mainline
    2012-01-20  Jakub Jelinek  <jakub@redhat.com>

    PR target/51915
    * gcc.target/arm/pr51915.c: New test.

    Backport r183095 from mainline
    2012-01-11  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

    * gcc.c-torture/execute/20120110-1.c: New testcase.

    Backport r182621 from mainline
    2011-12-21  Richard Earnshaw  <rearnsha@arm.com>

    PR target/51643
    * gcc.target/arm/sibcall-2.c: New test.


Added:
   
branches/ARM/embedded-4_6-branch/gcc/testsuite/gcc.c-torture/execute/20120111-1.c
    branches/ARM/embedded-4_6-branch/gcc/testsuite/gcc.target/arm/pr51915.c
    branches/ARM/embedded-4_6-branch/gcc/testsuite/gcc.target/arm/sibcall-2.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/config/arm/arm.md
    branches/ARM/embedded-4_6-branch/gcc/config/arm/thumb2.md
    branches/ARM/embedded-4_6-branch/gcc/testsuite/ChangeLog.arm