Anything that uses processor specific intrinsics won't work with Emscripten.
There is support for SSE 3 and below, but see details here: https://kripken.github.io/emscripten-site/docs/porting/simd.html Especially if you're not using it in a browser with built in SIMD support, don't expect it to be fast. On Tuesday, November 1, 2016 at 7:50:31 AM UTC-7, j...@enzienaudio.com wrote: > > Hi, > > I'm trying to compile our C++ code that makes use of SSE 4.1 intrinsics. > > I'm on OSX 10.11.6 using emscripten-incoming-64bit on commit > a28973d1b60a22723768e4e2bbe77b6795f964d1 > > The emscripten command I'm running is: > > path/to/emscripten/incoming/em++ --pre-js > /Users/joe/Desktop/test2/js/hv_wrapper.js > /Users/joe/Desktop/test2/c/Heavy_heavy.cpp > /Users/joe/Desktop/test2/c/HeavyContext.cpp > /Users/joe/Desktop/test2/c/HvHeavy.cpp > /Users/joe/Desktop/test2/c/HvLightPipe.c > /Users/joe/Desktop/test2/c/HvMessage.c > /Users/joe/Desktop/test2/c/HvMessagePool.c > /Users/joe/Desktop/test2/c/HvMessageQueue.c > /Users/joe/Desktop/test2/c/HvSignalPhasor.c > /Users/joe/Desktop/test2/c/HvSignalVar.c > /Users/joe/Desktop/test2/c/HvTable.c -msse4.1 -ffast-math -DNDEBUG > -std=c++11 -Wall -s WASM=1 -s RESERVED_FUNCTION_POINTERS=2 -s > EXPORTED_FUNCTIONS=["_hv_heavy_new", "_hv_delete", "_hv_processInline", > "_hv_getNumInputChannels", "_hv_getNumOutputChannels", "_hv_setPrintHook", > "_hv_sendFloatToReceiver", "_hv_sendBangToReceiver", > "_hv_sendSymbolToReceiver", "_hv_stringToHash", "_hv_msg_getByteSize", > "_hv_msg_init", "_hv_msg_setFloat", "_hv_msg_getFloat", > "_hv_table_getLength", "_hv_table_resize", "_hv_table_getBuffer"] -O3 > --memory-init-file 0 -o /Users/joe/Desktop/test2/js/heavyLib.min.js > > > And the errors I get are these: > > path/to/c/HvMath.h:335:11: error: use of undeclared identifier > '__builtin_ia32_roundps' > *bOut = _mm_ceil_ps(bIn); > ^ > path/to/emscripten/incoming/system/include/SSE/smmintrin.h:53:30: note: > expanded from macro '_mm_ceil_ps' > #define _mm_ceil_ps(X) _mm_round_ps((X), _MM_FROUND_CEIL) > ^ > path/to/emscripten/incoming/system/include/SSE/smmintrin.h:64:11: note: > expanded from macro '_mm_round_ps' > (__m128)__builtin_ia32_roundps((__v4sf)(__m128)(X), (M)); }) > ^ > path/to/c/HvMath.h:335:9: error: assigning to '__m128' (aka 'float32x4') > from incompatible type 'void' > *bOut = _mm_ceil_ps(bIn); > ^ ~~~~~~~~~~~~~~~~ > path/to/c/HvMath.h:353:11: error: use of undeclared identifier > '__builtin_ia32_roundps' > *bOut = _mm_floor_ps(bIn); > ^ > path/to/emscripten/incoming/system/include/SSE/smmintrin.h:58:30: note: > expanded from macro '_mm_floor_ps' > #define _mm_floor_ps(X) _mm_round_ps((X), _MM_FROUND_FLOOR) > ^ > path/to/emscripten/incoming/system/include/SSE/smmintrin.h:64:11: note: > expanded from macro '_mm_round_ps' > (__m128)__builtin_ia32_roundps((__v4sf)(__m128)(X), (M)); }) > ^ > path/to/c/HvMath.h:353:9: error: assigning to '__m128' (aka 'float32x4') > from incompatible type 'void' > *bOut = _mm_floor_ps(bIn); > ^ ~~~~~~~~~~~~~~~~~ > 4 errors generated. > ERROR:root:compiler frontend failed to generate LLVM bitcode, halting > > > It looks like it can't find the builtin x86 functions, I'm not that > familiar with the emscripten build system so I'm wondering if there's > something I'm misssing? > > Note: i had to change the #include <immintrin.h> declaration we usually > have to #include <smmintrin.h> for emscripten to find the SSE4.1 > intrinsics. > > Any pointers would be much appreciated! > > Thanks, > Joe > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to emscripten-discuss+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
