| // RUN: clang-cc -analyze -checker-cfref --analyzer-store=basic --verify -fblocks %s |
| |
| //--------------------------------------------------------------------------- |
| // Test case 'checkaccess_union' differs for region store and basic store. |
| // The basic store doesn't reason about compound literals, so the code |
| // below won't fire an "uninitialized value" warning. |
| //--------------------------------------------------------------------------- |
| |
| // PR 2948 (testcase; crash on VisitLValue for union types) |
| // http://llvm.org/bugs/show_bug.cgi?id=2948 |
| |
| void checkaccess_union() { |
| int ret = 0, status; |
| if (((((__extension__ (((union { // no-warning |
| __typeof (status) __in; int __i;} |
| ) |
| { |
| .__in = (status)} |
| ).__i))) & 0xff00) >> 8) == 1) |
| ret = 1; |
| } |