jyknight added a comment. In D99790#2677917 <https://reviews.llvm.org/D99790#2677917>, @brooksmoses wrote:
> As a heads up, I'm seeing segfaults on internal code as a result of this > change, as well as errors in Eigen's unalignedassert.cpp test (specifically, > this line asserts: > https://github.com/madlib/eigen/blob/master/test/unalignedassert.cpp#L151). Eigen's case is UB -- the test case is verifying that the constructor of the Matrix type throws an exception if called on an under-aligned instance, I think in an effort to make the UB noisier for their users. It already didn't work in GCC, and they had a "workaround", here, https://github.com/madlib/eigen/blob/fa14b05455c9d9737ae577f686188ef358df9020/Eigen/src/Core/DenseStorage.h#L63 It's unsurprising that this change in Clang causes the same code to fail in Clang, too. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D99790/new/ https://reviews.llvm.org/D99790 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
