http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51256
Bug #: 51256 Summary: ICE with invalid parameter for __atomic builtin Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassig...@gcc.gnu.org ReportedBy: reich...@gcc.gnu.org The following invalid code snippet triggers an ICE on trunk: ================================================= void foo(void* p) { __atomic_compare_exchange(p, p, p, 0, 0, 0); } ================================================= bug.c: In function 'foo': bug.c:3:3: internal compiler error: in tree_low_cst, at tree.c:6512 Please submit a full bug report, [etc.]