[Bug target/19232] New: Failure in gcc.dg/assign-warn-3.c on i686-pc-linux-gnu with -fpic/-fPIC

[Bug target/19232] New: Failure in gcc.dg/assign-warn-3.c on i686-pc-linux-gnu with -fpic/-fPIC

[ghazi at gcc dot gnu dot org]

When running the testsuite with mainline on i686-pc-linux-gnu with -fpic or -
fPIC, I get the following additional failures:

FAIL: gcc.dg/assign-warn-3.c  (test for warnings, line 9)
FAIL: gcc.dg/assign-warn-3.c  (test for warnings, line 13)

The expected warnings simply fail to appear with the extra flag.  Warning 
output should not be affected by this.

-- 
           Summary: Failure in gcc.dg/assign-warn-3.c on i686-pc-linux-gnu
                    with -fpic/-fPIC
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ghazi at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19232

[Bug target/19232] Failure in gcc.dg/assign-warn-3.c on i686-pc-linux-gnu with -fpic/-fPIC

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-01-03 15:31 -------
I cannot reproduce this with a cross from a couple of days ago.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19232

[Bug target/19232] Failure in gcc.dg/assign-warn-3.c on i686-pc-linux-gnu with -fpic/-fPIC

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2005-01-03 17:36 -------
With today's mainline I get the following results which confirm
Kaveh's observations:

gcc -c -O assign-warn-3.c:         no warning       
gcc -c -O2 assign-warn-3.c:        no warning
gcc -c -O3 assign-warn-3.c:        warning
gcc -c -O assign-warn-3.c -fpic:   no warning
gcc -c -O2 assign-warn-3.c -fpic:  no warning
gcc -c -O3 assign-warn-3.c -fpic:  no warning !!!

That no warning is emitted with -O and -O2 is expected since no
inlining takes place.

Just for curiosity I marked f0 and f1 in the test as inline and
got the following results:

gcc -c -O assign-warn-3.c:         no warning !!!
gcc -c -O2 assign-warn-3.c:        warning
gcc -c -O3 assign-warn-3.c:        warning
gcc -c -O assign-warn-3.c -fpic:   warning
gcc -c -O2 assign-warn-3.c -fpic:  warning
gcc -c -O3 assign-warn-3.c -fpic:  warning

Here I'd expect a warning in all six cases.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |diagnostic
   Last reconfirmed|0000-00-00 00:00:00         |2005-01-03 17:36:58
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19232

[Bug target/19232] Failure in gcc.dg/assign-warn-3.c on i686-pc-linux-gnu with -fpic/-fPIC

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-01-03 17:59 -------
(In reply to comment #2)
> With today's mainline I get the following results which confirm
> Kaveh's observations:
> 
> gcc -c -O assign-warn-3.c:         no warning       
> gcc -c -O2 assign-warn-3.c:        no warning
> gcc -c -O3 assign-warn-3.c:        warning
> gcc -c -O assign-warn-3.c -fpic:   no warning
> gcc -c -O2 assign-warn-3.c -fpic:  no warning
> gcc -c -O3 assign-warn-3.c -fpic:  no warning !!!

To repsond to this one, with -fpic/PIC we don't inline functions which can be overridden by other TUs.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19232