[Bug debug/56307] New: FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[Bug debug/56307] New: FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

             Bug #: 56307
           Summary: FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra
                    "Created a debug-only replacement for s"
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        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


Created attachment 29438
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29438
Tree dump

Executing on host: /test/gnu/gcc/objdir/gcc/xgcc -B/test/gnu/gcc/objdir/gcc/
/te
st/gnu/gcc/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr55579.c 
-fno-diagnostics-show-ca
ret   -O2 -g -fdump-tree-esra -S  -o pr55579.s    (timeout = 300)
spawn /test/gnu/gcc/objdir/gcc/xgcc -B/test/gnu/gcc/objdir/gcc/
/test/gnu/gcc/gc
c/gcc/testsuite/gcc.dg/tree-ssa/pr55579.c -fno-diagnostics-show-caret -O2 -g
-fd
ump-tree-esra -S -o pr55579.s
PASS: gcc.dg/tree-ssa/pr55579.c (test for excess errors)
FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only
replac
ement for s"

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jamborm at gcc dot gnu.org

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2013-02-14 10:34:33 UTC ---
Possibly again a callee-copy issue.

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #2 from Martin Jambor <jamborm at gcc dot gnu.org> 2013-02-18 10:55:32 UTC ---
Probably not because s is a local variable, not a parameter and the
only function parameter in the testcase is an integer.  Unfortunately,
I cannot reproduce the failure on hppa-linux-gnu (gcc61 on compile
farm) and trunk revision 195939 and thus I'm afraid I cannot do
anything about it.

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #3 from John David Anglin <danglin at gcc dot gnu.org> 2013-03-09 22:49:13 UTC ---
So, this is probably a debug format issue.

Will xfail.

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #4 from John David Anglin <danglin at gcc dot gnu.org> 2013-03-11 01:10:43 UTC ---
Author: danglin
Date: Mon Mar 11 01:10:38 2013
New Revision: 196591

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196591
Log:
    PR debug/56307
    * gcc.dg/tree-ssa/pr55579.c: xfail 32-bit hppa*-*-hpux*.


Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr55579.c

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #5 from John David Anglin <danglin at gcc dot gnu.org> 2013-03-12 01:06:15 UTC ---
I can reproduce the failure with a i686-apple-darwin9 cross 
to hppa2.0w-hp-hpux11.11.

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #6 from Martin Jambor <jamborm at gcc dot gnu.org> 2013-03-12 08:32:10 UTC ---
(In reply to comment #5)
> I can reproduce the failure with a i686-apple-darwin9 cross 
> to hppa2.0w-hp-hpux11.11.

Can you please attach -fdump-tree-ealias-slim and
-fdump-tree-esra-details dumps?  Thanks.

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #7 from John David Anglin <danglin at gcc dot gnu.org> 2013-03-12 14:52:11 UTC ---
Created attachment 29653
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29653
Tree dump

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #8 from John David Anglin <danglin at gcc dot gnu.org> 2013-03-12 14:53:13 UTC ---
Created attachment 29654
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29654
Tree dump

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #9 from Martin Jambor <jamborm at gcc dot gnu.org> 2013-03-12 17:48:15 UTC ---
I'm just guessing, but is it possible that MAY_HAVE_DEBUG_STMTS is 0
even with -g on hppa-hpux?  If so, that (and I suppose the debug
format) would be the cause and skipping/xfailing the test would indeed
be the right thing to do.

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-03-12 17:59:47 UTC ---
I think -fvar-tracking-assignments is disabled by default if selective
scheduler is enabled, but I doubt that is the case of pa.  In any case, you
could try
to add -fvar-tracking-assignments explicitly to dg-options.

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[dave.anglin at bell dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #11 from dave.anglin at bell dot net 2013-03-12 18:27:01 UTC ---
On 3/12/2013 1:59 PM, jakub at gcc dot gnu.org wrote:
> I think -fvar-tracking-assignments is disabled by default if selective
>
> scheduler is enabled, but I doubt that is the case of pa.  In any case, you
>
> could try
>
> to add -fvar-tracking-assignments explicitly to dg-options.
This does seem to make a difference:

;; Function foo (foo, funcdef_no=0, decl_uid=1351, cgraph_uid=0)

Created a debug-only replacement for s offset: 0, size: 32
Created a debug-only replacement for s offset: 32, size: 8
Created a debug-only replacement for s offset: 40, size: 8
Created a debug-only replacement for s offset: 48, size: 16
foo (int x)
{
   char * p;
   struct S s;

Dave

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[dave.anglin at bell dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #12 from dave.anglin at bell dot net 2013-03-13 01:50:05 UTC ---
On 12-Mar-13, at 1:48 PM, jamborm at gcc dot gnu.org wrote:

> I'm just guessing, but is it possible that MAY_HAVE_DEBUG_STMTS is 0
>
> even with -g on hppa-hpux?

Yes, your guess is correct.

1) In dbx_debug_hooks, var_location is debug_nothing_rtx.
2) This causes flag_var_tracking to be set to 0 at toplev.c:1412.
3) flag_selective_scheduling and flag_selective_scheduling2 are
both 0, so flag_var_tracking_assignments is set to flag_var_tracking
at toplev.c:1435.  This only happens when flag_var_tracking_assignments
initially has the AUTODETECT_VALUE.  Explicitly passing the
-fvar_tracking_assignments option overrides this.

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

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #13 from John David Anglin <danglin at gcc dot gnu.org> 2013-03-13 02:08:02 UTC ---
Created attachment 29658
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29658
Patch

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-03-13 14:33:07 UTC ---
Ah yes, I forgot that all of -fvar-tracking is disabled for non-dwarf debug.
Yeah, passing -fvar-tracking -fvar-tracking-assignments in dg-options is
desirable for that test.  The test isn't -O3, so not even on ia64 sel-sched
will be on by default.

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #15 from John David Anglin <danglin at gcc dot gnu.org> 2013-03-14 23:46:18 UTC ---
Adding -fvar-tracking -fvar-tracking-assignments results in the following
warning on hppa2.0w-hp-hpux11.11:

spawn /test/gnu/gcc/objdir/gcc/xgcc -B/test/gnu/gcc/objdir/gcc/
/test/gnu/gcc/gc
c/gcc/testsuite/gcc.dg/tree-ssa/pr55579.c -fno-diagnostics-show-caret -O2 -g
-fdump-tree-esra -fvar-tracking -fvar-tracking-assignments -S -o pr55579.s
/test/gnu/gcc/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr55579.c:1:0: warning:
variable
 tracking requested, but not supported by this debug format [enabled by
default]

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-03-15 07:06:54 UTC ---
Author: jakub
Date: Fri Mar 15 07:06:49 2013
New Revision: 196672

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196672
Log:
    PR debug/56307
    * gcc.dg/tree-ssa/pr55579.c: Add -fvar-tracking-assignments to
    dg-options.  Remove 32-bit hppa*-*-hpux* xfail.

Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr55579.c

[Bug debug/56307] FAIL: gcc.dg/tree-ssa/pr55579.c scan-tree-dump esra "Created a debug-only replacement for s"

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56307

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

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

--- Comment #17 from John David Anglin <danglin at gcc dot gnu.org> ---
Fixed.