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From: "amylaar at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/56457] New: Bogus warning: loop-invariant.c:786:20: error:=?UTF-8?Q?=20unused=20variable=20=E2=80=98regno=E2=80=99=20when=20building=20vax=2D=2A=2D=2A?=
Date: Tue, 26 Feb 2013 10:36:00 -0000
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X-Bugzilla-Component: tree-optimization
X-Bugzilla-Keywords: build, diagnostic
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X-Bugzilla-Who: amylaar at gcc dot gnu.org
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D56457

             Bug #: 56457
           Summary: Bogus warning: loop-invariant.c:786:20: error: unused
                    variable =E2=80=98regno=E2=80=99 when building vax-*-*
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Keywords: build, diagnostic
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: amylaar@gcc.gnu.org
            Blocks: 44756
              Host: i686-pc-linux-gnu
            Target: vax-linux-gnu, vax-netbsdelf


../../../gcc/gcc/loop-invariant.c: In function =E2=80=98bool
check_dependency(basic_block, df_ref, bitmap)=E2=80=99:
../../../gcc/gcc/loop-invariant.c:786:20: error: unused variable =E2=80=98r=
egno=E2=80=99
[-Werror=3Dunused-variable]
       unsigned int regno =3D DF_REF_REGNO (use);
                    ^
cc1plus: all warnings being treated as errors