yaxunl added a comment. In https://reviews.llvm.org/D36327#833653, @bader wrote:
> Hi Sam, > > What do you think about implementing this optimization in target specific > optimization pass? Since size/alignment is saved as function parameter in > LLVM IR, the optimization can be done in target specific components w/o > adding additional conditions to generic library. > > Thanks, > Alexey Hi Alexey, The optimization of the power-of-2 type size is implemented as a library function. Our backend lacks the capability to link in library code at ISA level, so linking of the optimized library function has to be done before any target-specific passes. It seems the only place to do this is Clang codegen since Clang/llvm does not support target-specific pre-linking passes. https://reviews.llvm.org/D36327 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
