[Bug c/25169] New: [4.0 regression] tree checking failures in gcc.dg/20040203-1.c, cast-1.c, cast-2.c, cast-3.c

[ghazi at gcc dot gnu dot org]

On i686-unknown-linux-gnu with the 4.0.x branch, I'm getting tree checking
failures in gcc.dg/20040203-1.c, cast-1.c, cast-2.c, cast-3.c.  From the
logfile, the errors in 20040203-1.c are of this form:

20040203-1.c:17: internal compiler error: tree check: expected class
'constant', have 'unary' (nop_expr) in build_c_cast, at c-typeck.c:3330

The errors from cast-*.c are of this form:

cast-1.c:25: internal compiler error: tree check: expected class 'constant',
have 'declaration' (var_decl) in build_c_cast, at c-typeck.c:3330


It was clean as of here:
http://gcc.gnu.org/ml/gcc-testresults/2005-11/msg00301.html

It started happening here:
http://gcc.gnu.org/ml/gcc-testresults/2005-11/msg00360.html

To reproduce, configure with --enable-checking=yes,rtl then bootstrap the 4.0
branch and run the testsuite.

The 4.1 branch and mainline are all clean for some reason.


-- 
           Summary: [4.0 regression] tree checking failures in
                    gcc.dg/20040203-1.c, cast-1.c, cast-2.c, cast-3.c
           Product: gcc
           Version: 4.0.3
            Status: UNCONFIRMED
          Keywords: ice-checking
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ghazi at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25169