The following valid code snippet triggers an ICE on mainline:
=================================================================
typedef union { int i; } U __attribute__((transparent_union));
static void foo(U) {}
static void foo(int) {}
void bar()
{
foo(0);
}
=================================================================
bug.cc: In function 'void bar()':
bug.cc:8: internal compiler error: same canonical type node for different types
<anonymous union> and U
Please submit a full bug report, [etc.]
--
Summary: [4.4 regression] ICE with attribute transparent_union
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, monitored
Severity: normal
Priority: P3
Component: c++
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=35315
