This is the mail archive of the gcc-bugs@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

[Bug rtl-optimization/37889] [4.3 Regression] SEGV, conditional execution proactively executed the false arm.



------- Comment #21 from rguenth at gcc dot gnu dot org  2009-07-14 09:33 -------
Subject: Bug 37889

Author: rguenth
Date: Tue Jul 14 09:32:55 2009
New Revision: 149620

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=149620
Log:
2009-07-14  Richard Guenther  <rguenther@suse.de>

        Backport from mainline
        2009-02-05  Paolo Bonzini  <bonzini@gnu.org>

        PR rtl-optimization/39110
        * rtlanal.c (rtx_addr_can_trap_p_1): Shortcut unaligned
        addresses, not aligned ones.

        2009-02-04  Paolo Bonzini  <bonzini@gnu.org>
            Hans-Peter Nilsson  <hp@axis.com>

        PR rtl-optimization/37889
        * rtlanal.c (rtx_addr_can_trap_p_1): Add offset and size arguments.
        Move offset handling from PLUS to before the switch.  Use new
        arguments when considering SYMBOL_REFs too.
        (rtx_addr_can_trap_p): Pass dummy offset and size.
        (enum may_trap_p_flags): Remove.
        (may_trap_p_1): Pass size from MEM_SIZE.

        PR rtl-optimization/38921
        * loop-invariant.c (find_invariant_insn): Use may_trap_or_fault_p.
        * rtl.h (may_trap_after_code_motion_p): Delete prototype.
        * rtlanal.c (may_trap_after_code_motion_p): Delete.
        (may_trap_p, may_trap_or_fault_p): Pass 0/1 as flags.

Modified:
    branches/gcc-4_3-branch/gcc/ChangeLog
    branches/gcc-4_3-branch/gcc/loop-invariant.c
    branches/gcc-4_3-branch/gcc/rtl.h
    branches/gcc-4_3-branch/gcc/rtlanal.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37889


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]