[Bug c/43248] New: ICE: tree check: expected class 'type', have 'exceptional' (error_mark) in useless_type_conversion_p, at tree-ssa.c:1233

[zsojka at seznam dot cz]

Command line:
gcc testcase.c

--------- testcase.c ---------
int foo(int i)
{
  i ? : (void *){};
}
------------------------------

Output - 4.5 r157122, checking:
$ /mnt/svn/gcc-trunk/binary-157122/bin/gcc testcase.c
testcase.c: In function 'foo':
testcase.c:3:3: error: empty scalar initializer
testcase.c:3:3: error: (near initialization for '(anonymous)')
testcase.c:3:7: warning: pointer/integer type mismatch in conditional
expression
testcase.c:3:7: internal compiler error: tree check: expected class 'type',
have 'exceptional' (error_mark) in useless_type_conversion_p, at
tree-ssa.c:1233

Output - 4.4 r157120, checking:
$ /mnt/svn/gcc-4_4/binary-157120-enable-checking/bin/gcc testcase.c
testcase.c: In function 'foo':
testcase.c:3: error: empty scalar initializer
testcase.c:3: error: (near initialization for '(anonymous)')
testcase.c:3: warning: pointer/integer type mismatch in conditional expression
testcase.c:3: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in c_types_compatible_p, at c-objc-common.c:190

Output - 4.5 r157122, disabled checking:
$ gcc-4.5.0-alpha20100225 testcase.c
testcase.c: In function 'foo':
testcase.c:3:3: error: empty scalar initializer
testcase.c:3:3: error: (near initialization for '(anonymous)')
testcase.c:3:7: warning: pointer/integer type mismatch in conditional
expression
testcase.c:3: confused by earlier errors, bailing out

Output - 4.4.3, disabled checking:
$ gcc-4.4.3 testcase.c
testcase.c: In function 'foo':
testcase.c:3: error: empty scalar initializer
testcase.c:3: error: (near initialization for '(anonymous)')
testcase.c:3: warning: pointer/integer type mismatch in conditional expression
testcase.c:3: confused by earlier errors, bailing out

Output - 4.3.4, disabled checking:
$ gcc-4.3.4 testcase.c
testcase.c: In function 'foo':
testcase.c:3: error: empty scalar initializer
testcase.c:3: error: (near initialization for '(anonymous)')
testcase.c:3: warning: pointer/integer type mismatch in conditional expression

It is probably different problem than pr43082, 4.4 ICEs at different place. I
don't have any 4.3 build with checking to test.


-- 
           Summary: ICE: tree check: expected class 'type', have
                    'exceptional' (error_mark) in useless_type_conversion_p,
                    at tree-ssa.c:1233
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43248