public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug middle-end/19083] New: [4.0 Regression] FAIL: gcc.c-torture/execute/strct-pack-3.c execution,  -O1
@ 2004-12-19 20:36 danglin at gcc dot gnu dot org
  2004-12-19 20:39 ` [Bug middle-end/19083] " pinskia at gcc dot gnu dot org
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: danglin at gcc dot gnu dot org @ 2004-12-19 20:36 UTC (permalink / raw)
  To: gcc-bugs

The failure is caused by an 
(gdb) r
Starting program: /mnt/gnu/gcc-3.3/objdir/gcc/testsuite/strct-pack-3.xg
Program received signal SIGBUS, Bus error.
0x000029a8 in f ()
(gdb) disass f
Dump of assembler code for function f:
0x00002998 <f+0>:       ldh 8(,r26),ret0
0x0000299c <f+4>:       extrw,s ret0,31,15,ret0
0x000029a0 <f+8>:       depw,z ret0,30,31,r19
0x000029a4 <f+12>:      ldi 2,r20
0x000029a8 <f+16>:      ldw 2(,r26),ret0
...
(gdb) p/x $r26
$1 = 0x7eff05b8

The r26 base register and the displacement of 2 must sum to zero modulo 4.
Since it's the sum that matters for this insn, we don't require both the base
and the displacement to be aligned.

This worked in 3.[34].

-- 
           Summary: [4.0 Regression] FAIL: gcc.c-torture/execute/strct-pack-
                    3.c execution,  -O1
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: danglin at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: hppa2.0w-hp-hpux11.11
  GCC host triplet: hppa2.0w-hp-hpux11.11
GCC target triplet: hppa2.0w-hp-hpux11.11


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19083


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug middle-end/19083] [4.0 Regression] FAIL: gcc.c-torture/execute/strct-pack-3.c execution,  -O1
  2004-12-19 20:36 [Bug middle-end/19083] New: [4.0 Regression] FAIL: gcc.c-torture/execute/strct-pack-3.c execution, -O1 danglin at gcc dot gnu dot org
@ 2004-12-19 20:39 ` pinskia at gcc dot gnu dot org
  2004-12-26 17:04 ` danglin at gcc dot gnu dot org
  2004-12-26 17:16 ` pinskia at gcc dot gnu dot org
  2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-12-19 20:39 UTC (permalink / raw)
  To: gcc-bugs



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19083


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug middle-end/19083] [4.0 Regression] FAIL: gcc.c-torture/execute/strct-pack-3.c execution,  -O1
  2004-12-19 20:36 [Bug middle-end/19083] New: [4.0 Regression] FAIL: gcc.c-torture/execute/strct-pack-3.c execution, -O1 danglin at gcc dot gnu dot org
  2004-12-19 20:39 ` [Bug middle-end/19083] " pinskia at gcc dot gnu dot org
@ 2004-12-26 17:04 ` danglin at gcc dot gnu dot org
  2004-12-26 17:16 ` pinskia at gcc dot gnu dot org
  2 siblings, 0 replies; 4+ messages in thread
From: danglin at gcc dot gnu dot org @ 2004-12-26 17:04 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From danglin at gcc dot gnu dot org  2004-12-26 17:03 -------
This test fails on all hppa-hpux targets.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
  GCC build triplet|hppa2.0w-hp-hpux11.11       |hppa*-*-hpux*
   GCC host triplet|hppa2.0w-hp-hpux11.11       |hppa*-*-hpux*
 GCC target triplet|hppa2.0w-hp-hpux11.11       |hppa*-*-hpux*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19083


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug middle-end/19083] [4.0 Regression] FAIL: gcc.c-torture/execute/strct-pack-3.c execution,  -O1
  2004-12-19 20:36 [Bug middle-end/19083] New: [4.0 Regression] FAIL: gcc.c-torture/execute/strct-pack-3.c execution, -O1 danglin at gcc dot gnu dot org
  2004-12-19 20:39 ` [Bug middle-end/19083] " pinskia at gcc dot gnu dot org
  2004-12-26 17:04 ` danglin at gcc dot gnu dot org
@ 2004-12-26 17:16 ` pinskia at gcc dot gnu dot org
  2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-12-26 17:16 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From pinskia at gcc dot gnu dot org  2004-12-26 17:16 -------
This is a dup of bug 17949.

*** This bug has been marked as a duplicate of 17949 ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19083


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2004-12-26 17:16 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-12-19 20:36 [Bug middle-end/19083] New: [4.0 Regression] FAIL: gcc.c-torture/execute/strct-pack-3.c execution, -O1 danglin at gcc dot gnu dot org
2004-12-19 20:39 ` [Bug middle-end/19083] " pinskia at gcc dot gnu dot org
2004-12-26 17:04 ` danglin at gcc dot gnu dot org
2004-12-26 17:16 ` pinskia at gcc dot gnu dot org

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).