[Bug target/50906] e500 exception unwinding under "-Os" causes SIGSEGV

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50906

--- Comment #20 from Alan Modra <amodra at gcc dot gnu.org> 2011-12-06 03:47:40 UTC ---
Author: amodra
Date: Tue Dec  6 03:47:37 2011
New Revision: 182040

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182040
Log:
    PR target/50906
    * config/rs6000/rs6000.c (rs6000_emit_prologue <TARGET_SPE_ABI>):
    Do not mark r11 setup as frame-related.  Pass correct offset to
    rs6000_emit_savres_rtx.  Correct out-of-line rs6000_frame_related
    arguments.  Correct sp_offset.  Remove "offset" fudge from
    in-line rs6000_frame_related call.  Rename misleading variable.
    Fix comments and whitespace.  Tidy some expressions.
    (rs6000_emit_epilogue <TARGET_SPE_ABI>): Always set frame_reg_rtx
    to r11 in out-of-line case.  Correct sp_offset.  Pass correct
    offset to rs6000_emit_savres_rtx.  Rename misleading variable.
    Fix comments and whitespace.  Tidy some expressions.
    (rs6000_emit_epilogue <non-TARGET_SPE_ABI>): Add sp_offset
    adjustment when !saving_GPRs_inline.  Correct register mode
    used in address calcs.
    (rs6000_emit_epilogue <non-TARGET_SPE_ABI>): Similarly when
    !restoring_GPRs_inline.


Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/config/rs6000/rs6000.c