The following valid testcase triggers an ICE on mainline when compiled with
"-fmudflap -O":
=================================
struct A
{
int i, j;
};
int foo(long long int x)
{
return ((struct A*)&x)->j;
}
=================================
bug.c: In function 'foo':
bug.c:7: internal compiler error: in mf_xform_derefs_1, at tree-mudflap.c:789
Please submit a full bug report, [etc.]
The regression was introduced between 2008-05-03 and 2008-05-13.
--
Summary: [4.4 regression] ICE with pointer cast and -fmudflap
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, monitored
Severity: normal
Priority: P3
Component: libmudflap
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=36397