The following valid code snippet causes an ICE on mainline:
======================
void foo()
{
L:
!&&L;
}
======================
bug.c: In function 'foo':
bug.c:4: internal compiler error: tree check: expected tree that contains 'decl
with visibility' structure, have 'label_decl' in
c_common_truthvalue_conversion, at c-common.c:2503
Please submit a full bug report, [etc.]
--
Summary: [4.2 regression] ICE in c_common_truthvalue_conversion
with label address
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, monitored
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27382