ahatanak added a comment. > Note that this sort of attribute is stripped from template arguments in > template substitution, so there's a possibility that code templated over > vectors will produce inadequately-aligned objects.
I was wondering whether there is a warning clang issues when the aligned attribute is stripped. If it doesn't warn, should it? I recently came across a case where a 16-byte vector annotated with a 4-byte alignment was passed to std::swap, which caused a crash because the alignment was stripped and the x86 backend decided to emit an 16-byte aligned load to load an unaligned vector. Repository: rC Clang https://reviews.llvm.org/D46042 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
