In tests/enum_union.ark, if one where to pass Tree by value instead of as opposed to by pointer, the test will result in a segfault. Uncommenting certain combinations of the debug printfs makes it not segfault.
I believe we're running into a weird combination of odd LLVM struct passing behavior triggering an alignment issue, as the segfault is the result of the upper half of the right pointer being cut off / set to zero.
MovingtoMars
commented
8 years ago
In tests/enum_union.ark, if one where to pass
Treeby value instead of as opposed to by pointer, the test will result in a segfault. Uncommenting certain combinations of the debugprintfs makes it not segfault.I believe we're running into a weird combination of odd LLVM struct passing behavior triggering an alignment issue, as the segfault is the result of the upper half of the
rightpointer being cut off / set to zero.