tlively added inline comments.
================ Comment at: clang/lib/Headers/wasm_simd128.h:171 + +#define wasm_v128_load8_lane(__ptr, __vec, __i) \ + ((v128_t)__builtin_wasm_load8_lane((signed char *)(__ptr), (__i8x16)(__vec), \ ---------------- dschuff wrote: > tlively wrote: > > aheejin wrote: > > > dschuff wrote: > > > > out of curiosity, why are these macros, while all the rest (including > > > > ones that don't need declarations such as `wasm_i64x2_eq`) seem to be > > > > inline functions? > > > I was also curious about this too. > > The `i` parameter needs to be an integer constant, and I never figured out > > a way to enforce that for a function parameter. (But using a macro works > > because the codegen for the builtin functions can error out on non-constant > > arguments.) > Ah, that makes sense. It does make me wonder, do we have any documentation > about those constraints? I guess this file itself is more-or-less what we > have, right? If the constraint is violated, is the error from the compiler > intelligible? Yes, the error should be somewhat intelligible, as far as error messages go. So far this is all we have, but I would like to get proper documentation at some point. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D101112/new/ https://reviews.llvm.org/D101112 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
