[Bug middle-end/51871] New: [4.7 Regression] FAIL: gcc.c-torture/execute/20010122-1.c execution

[Bug middle-end/51871] New: [4.7 Regression] FAIL: gcc.c-torture/execute/20010122-1.c execution

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51871

             Bug #: 51871
           Summary: [4.7 Regression] FAIL:
                    gcc.c-torture/execute/20010122-1.c execution
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: danglin@gcc.gnu.org
              Host: hppa2.0w-hp-hpux11.11
            Target: hppa2.0w-hp-hpux11.11
             Build: hppa2.0w-hp-hpux11.11


Executing on host: /test/gnu/gcc/objdir/gcc/xgcc -B/test/gnu/gcc/objdir/gcc/
/te
st/gnu/gcc/gcc/gcc/testsuite/gcc.c-torture/execute/20010122-1.c   -w  -O0   -lm
  -o /test/gnu/gcc/objdir/gcc/testsuite/gcc/20010122-1.x0    (timeout = 300)
spawn /test/gnu/gcc/objdir/gcc/xgcc -B/test/gnu/gcc/objdir/gcc/
/test/gnu/gcc/gc
c/gcc/testsuite/gcc.c-torture/execute/20010122-1.c -w -O0 -lm -o
/test/gnu/gcc/o
bjdir/gcc/testsuite/gcc/20010122-1.x0
PASS: gcc.c-torture/execute/20010122-1.c compilation,  -O0
Setting LD_LIBRARY_PATH to :/test/gnu/gcc/objdir/gcc::/test/gnu/gcc/objdir/gcc
spawn [open ...]
FAIL: gcc.c-torture/execute/20010122-1.c execution,  -O0

(gdb) r
The program being debugged has been started already.
Start it from the beginning? (y or n) y

Starting program: /test/gnu/gcc/objdir/gcc/testsuite/gcc/20010122-1.x0g
warning: Private mapping of shared library text was not specified
by the executable; setting a breakpoint in a shared library which
is not privately mapped will not work.  See the HP-UX 11i v3 chatr
manpage for methods to privately map shared library text.

Breakpoint 1, main ()
    at /test/gnu/gcc/gcc/gcc/testsuite/gcc.c-torture/execute/20010122-1.c:180
180         abort ();
(gdb) p save_ret1[0]
$1 = (void *) 0x310b
(gdb) p save_ret1[1]
$2 = (void *) 0x318b
(gdb) p save_ret1[2]
$4 = (void *) 0x321b

# ./xgcc -B./ -v
Reading specs from ./specs
COLLECT_GCC=./xgcc
COLLECT_LTO_WRAPPER=./lto-wrapper
Target: hppa2.0w-hp-hpux11.11
Configured with: ../gcc/configure --with-arch=2.0 --with-gnu-as
--with-as=/opt/gnu/bin/as --enable-shared --with-local-prefix=/opt/gnu
--prefix=/opt/gnu/gcc/gcc-4.7 --with-gmp=/opt/gnu/gcc/gmp
--enable-threads=posix --enable-debug=no --disable-nls --disable-lto
--without-cloog --without-ppl
--enable-languages=c,c++,objc,fortran,java,ada,obj-c++
Thread model: posix
gcc version 4.7.0 20120115 (experimental) [trunk revision 183192] (GCC)

[Bug middle-end/51871] [4.7 Regression] FAIL: gcc.c-torture/execute/20010122-1.c execution

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51871

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.7.0

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-17 09:51:39 UTC ---
Can you specify a range for working/failing revisions?

[Bug middle-end/51871] [4.7 Regression] FAIL: gcc.c-torture/execute/20010122-1.c execution

[dave.anglin at bell dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51871

--- Comment #2 from dave.anglin at bell dot net 2012-01-17 13:04:28 UTC ---
On 17-Jan-12, at 4:51 AM, rguenth at gcc dot gnu.org wrote:

> Can you specify a range for working/failing revisions?

Not at the moment.  The build was done with the --with-arch=2.0 to
check 32-bit PA2.0 code generation.  I don't usually configure with
this option.

I note the test uses __builtin_return_address (1).  This may not behave
correctly.

The test didn't fail on hppa-linux with --with-arch=2.0.  However, there
are differences in call stubs.  This is what makes  
__builtin_return_address
difficult.

Needs some debugging.

Dave
--
John David Anglin    dave.anglin@bell.net

[Bug middle-end/51871] [4.7 Regression] FAIL: gcc.c-torture/execute/20010122-1.c execution

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51871

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-19 12:55:26 UTC ---
So, you are not sure this is a regression?

[Bug middle-end/51871] [4.7 Regression] FAIL: gcc.c-torture/execute/20010122-1.c execution

[dave.anglin at bell dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51871

--- Comment #4 from dave.anglin at bell dot net 2012-01-19 14:34:56 UTC ---
On 1/19/2012 7:55 AM, rguenth at gcc dot gnu.org wrote:
> So, you are not sure this is a regression?
Yes.

[Bug target/51871] FAIL: gcc.c-torture/execute/20010122-1.c execution

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51871

John David Anglin <danglin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|middle-end                  |target
            Summary|[4.7 Regression] FAIL:      |FAIL:
                   |gcc.c-torture/execute/20010 |gcc.c-torture/execute/20010
                   |122-1.c execution           |122-1.c execution

--- Comment #5 from John David Anglin <danglin at gcc dot gnu.org> 2012-01-21 18:21:18 UTC ---
Stub check in pa_return_addr_rtx is wrong for PA2.0 code.  PA2.0
uses different stub.

[Bug target/51871] FAIL: gcc.c-torture/execute/20010122-1.c execution

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51871

--- Comment #6 from John David Anglin <danglin at gcc dot gnu.org> 2012-01-28 18:48:16 UTC ---
Author: danglin
Date: Sat Jan 28 18:48:11 2012
New Revision: 183669

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183669
Log:
    PR target/51871
    * config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
    stubs.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/pa/pa.c

[Bug target/51871] FAIL: gcc.c-torture/execute/20010122-1.c execution

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51871

John David Anglin <danglin at gcc dot gnu.org> changed:

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

--- Comment #7 from John David Anglin <danglin at gcc dot gnu.org> 2012-01-28 19:14:00 UTC ---
Fixed on trunk.

[Bug target/51871] FAIL: gcc.c-torture/execute/20010122-1.c execution

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51871

--- Comment #8 from John David Anglin <danglin at gcc dot gnu.org> 2012-03-12 17:00:18 UTC ---
Author: danglin
Date: Mon Mar 12 17:00:01 2012
New Revision: 185251

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185251
Log:
    Backport for mainline
    2012-01-28  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

    PR target/51871
    * config/pa/pa.c (pa_return_addr_rtx): Add support for PA2.0 export
    stubs.


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