[Bug optimization/11592] New: "make check-gcc" fails on gcc.dg/duff-2.c with "warning: unreachable code at beginning of switch statement"

[Bug optimization/11592] New: "make check-gcc" fails on gcc.dg/duff-2.c with "warning: unreachable code at beginning of switch statement"

[dank at kegel dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11592

           Summary: "make check-gcc" fails on gcc.dg/duff-2.c with "warning:
                    unreachable code at beginning of switch statement"
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dank at kegel dot com
                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: powerpc-unknown-linux-gnu,sh4-unknown-linux-gnu

I'm building and testing cross-compilers using http://kegel.com/crosstool

Both gcc-3.3 and gcc-ss-3_3-20030714's 'make check-gcc' produce
the following error:

FAIL: gcc.dg/duff-2.c (test for excess errors)
Excess errors:
/crosstool-0.13/build/powerpc-750-linux-gnu/gcc-3.3-glibc-2.2.5/gcc-3.3/gcc/testsuite/gcc.dg/duff-2.c:28:
warning: unreachable code at beginning of switch statement

This looks like PR 5230 but on a different platform.
I haven't tested an x86 compiler.
It also looks similar to PR 11370.

[Bug optimization/11592] gcc.dg/duff-2.c fails with "warning: unreachable code at beginning of switch statement"

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11592


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 GCC target triplet|powerpc-unknown-linux-      |powerpc-*-linux-gnu,sh4*-
                   |gnu,sh4-unknown-linux-gnu   |linux-gnu
            Summary|"make check-gcc" fails on   |gcc.dg/duff-2.c fails with
                   |gcc.dg/duff-2.c with        |"warning: unreachable code
                   |"warning: unreachable code  |at beginning of switch
                   |at beginning of switch      |statement"
                   |statement"                  |

[Bug optimization/11592] [3.3 Regression] gcc.dg/duff-2.c fails with "warning: unreachable code at beginning of switch statement"

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11592


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-07-19 22:29:13
               date|                            |
            Summary|gcc.dg/duff-2.c fails with  |[3.3 Regression]
                   |"warning: unreachable code  |gcc.dg/duff-2.c fails with
                   |at beginning of switch      |"warning: unreachable code
                   |statement"                  |at beginning of switch
                   |                            |statement"
   Target Milestone|3.4                         |3.3.2


------- Additional Comments From pinskia at physics dot uc dot edu  2003-07-19 22:29 -------
I can confirm this in 3.3.1 (20030714) but on the mainline (20030719), it is already fixed, 
this on powerpc-*linux-gnu, I have not checked with sh4-*-linux-gnu yet.

[Bug optimization/11592] [3.3 Regression] gcc.dg/duff-2.c fails with "warning: unreachable code at beginning of switch statement"

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11592


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
           Keywords|                            |diagnostic
         Resolution|                            |FIXED
   Target Milestone|3.3.2                       |3.4


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-09-17 22:06 -------
Since this is only a diagnostic problem closing as Mark is closing diagnostic problems.

[Bug optimization/11592] [3.3 Regression] gcc.dg/duff-2.c fails with "warning: unreachable code at beginning of switch statement"

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11592



------- Additional Comments From pinskia at gcc dot gnu dot org  2003-09-17 22:07 -------
I should have said which are already fixed on the mainline.