Thank you very much. Are there any public discussion or roadmap to add EM_ASM_REF into emscripten?
On Thursday, 23 March 2023 at 23:17:52 UTC+7 s...@google.com wrote: > On Thu, Mar 23, 2023 at 6:52 AM Thaina Yu <thai...@gmail.com> wrote: > >> Do we have anyway to write hand-written assembly code along with >> emscripten? And is it possible to return that externref from wasm code into >> emscripten world? > > > Here is the example how to use externref in assembly: > https://github.com/emscripten-core/emscripten/blob/main/test/core/test_externref.s > > Until recently there was no way to communicate those references directly > to C++ but it maybe possible now that upstream clan support has landed. > > There is no current support for externref in EM_ASM. We could > potentially add EM_ASM_REF which returns a ref to C/C++ but until recently > that would have been impossible. > > >> I am actually using unity which use emscripten to build webgl. Would it >> possible to use EM_ASM_PTR to write wasm code to return as pointer >> (externref ? (an so I might return pointer as IntPtr in C#)) ? >> >> On Friday, 17 March 2023 at 22:35:55 UTC+7 tli...@google.com wrote: >> >>> Yes, but note that the usage in that commit is only in hand-written >>> assembly code, not in C/C++. >>> >>> More recently, support for externref landed upstream in clang: >>> https://github.com/llvm/llvm-project/blob/main/clang/test/CodeGen/WebAssembly/wasm-externref.c. >>> >>> AFAIK we haven't yet experimented with it in Emscripten, but in principle >>> it should work. >>> >>> On Fri, Mar 17, 2023 at 10:23 AM Thaina Yu <thai...@gmail.com> wrote: >>> >>>> Is this mean externref already usable? >>>> >>>> https://github.com/emscripten-core/emscripten/pull/15913 >>>> >>>> On Monday, 10 October 2022 at 22:56:34 UTC+7 karl.we...@gmail.com >>>> wrote: >>>> >>>>> Does anyone have news on this topic? >>>>> >>>>> tli...@google.com schrieb am Montag, 25. Januar 2021 um 19:51:36 >>>>> UTC+1: >>>>> >>>>>> I don't think so, but you can keep an eye on commits from "wingo" and >>>>>> "pmatos" on reviews.llvm.org to keep track of the progress. >>>>>> >>>>>> On Mon, Jan 25, 2021 at 12:55 AM ben layet <lay...@gmail.com> wrote: >>>>>> >>>>>>> Thanks! >>>>>>> Is there a feature ticket in a publicly visible ticket tracker that >>>>>>> I can keep an eye on? >>>>>>> cheers >>>>>>> ben >>>>>>> >>>>>>> On Saturday, 23 January 2021 at 17:54:25 UTC tli...@google.com >>>>>>> wrote: >>>>>>> >>>>>>>> Not yet, but there are some folks working on this. Perhaps it will >>>>>>>> be ready to use in a few months? It’s hard to say for sure. >>>>>>>> >>>>>>>> On Sat, Jan 23, 2021 at 03:49 ben layet <lay...@gmail.com> wrote: >>>>>>>> >>>>>>>>> Does emscripten support externref reference types for holding >>>>>>>>> opaque handles to JS objects in C++? 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