To use it, you need EMCC_NATIVE_OPTIMIZER=1 in the environment - this is not a JS setting you can pass as a parameter to emcc.
- Alon On Mon, Dec 1, 2014 at 5:26 AM, Michel Courtine <[email protected]> wrote: > Hi! > > I saw the great boost in compilation time in and it's just amazingly fast > now. Congratulations on the great work! > I tried the NATIVE_OPTIMIZER=1 option but I get this warning: > > WARNING root: Assigning a non-existent settings attribute > "NATIVE_OPTIMIZER" > WARNING root: - perhaps a typo in emcc's -s X=Y notation? > WARNING root: - (see src/settings.js for valid values) > > It is indeed not present in settings.js. > > I use the OSX portable sdk. > > Best, > > M > > On Friday, November 28, 2014 3:25:21 PM UTC+1, jj wrote: >> >> Hi all, >> >> nearing the holidays, it's time for a new Emscripten SDK package. There >> are a plenty of exciting changes coming in to Emscripten, some of which are >> experimental at this point, but will mature as the new year progresses. >> Here's highlights of the new developments in this SDK version: >> - in order to improve compilation performance, more of the Emscripten >> compiler optimizer backend is being converted to native C++ code. In the >> new 1.27.0 there is an experimental option -s NATIVE_OPTIMIZER=1 option >> that you can enable to test this feature. Some time in the future, we are >> looking to enable this by default, so let us know well ahead of time how >> this is working out for you. >> - The asm.js spec is getting an option for resizing the asm.js heap >> during runtime. This means that currently in Firefox Developer Edition >> (Firefox 35 and up), building with -s ALLOW_MEMORY_GROWTH=1 will allow >> asm.js validation while being able to expand the memory space on demand. >> This will help applications tackle memory issues once the specification >> becomes more adopted. >> - This SDK release contains the Emterpreter feature, which is a >> research project to improve startup times of Emscripten pages. Find more >> information here: https://groups.google.com/d/msg/emscripten-discuss/ >> vhaPL9kULxk/_eD2G06eucwJ >> - For a good while now, Emscripten has been getting more support for >> SIMD intrinsics. This is very experimental as the spec is not complete yet, >> and one can't expect runtime performance yet because browsers don't have >> the support yet, but we have a polyfill for SSE intrinsics which we are >> polishing in order to bring the compiler correctness and support in. Once >> the support matures, we'll start asking developers to try out their SIMD >> code on it, to expose issues and get eyes on the performance landscape. To >> get a grasp of where the implementation is at, follow the label SIMD in the >> issue tracker: https://github.com/kripken/emscripten/labels/SIMD >> - Emscripten SDK 1.27.0 introduces a "Emscripten Ports" mechanism >> which allows downloading and compiling Emscripten ported libraries as >> needed. Currently SDL2 and Zlib are supported by passing -s USE_SDL=2 and >> -s USE_ZLIB=1. >> - WebGL 2.0 specification and implementation is maturing, and >> Emscripten is following the progress, and has added more support for WebGL >> 2.0/GLES3 in the codebase. This support can be prototyped in Firefox >> Nightly by following these instructions: https://wiki. >> mozilla.org/Platform/GFX/WebGL2 . Build your Emscripten code with the >> linker flag -s USE_WEBGL2=1 and also possibly with -s FULL_ES3=1 for full >> GLES3 emulation, and initialize a WebGL2 context using the HTML5 WebGL >> context creation API. Bug reports and success/failure stories on this front >> are very welcome. >> - Emscripten HTML5 API features two new interfaces for more detailed >> rendering management. The HTML5 Fullscreen API has been extended to enable >> different preset strategies for fullscreen mode presentation. Check out >> https://github.com/kripken/emscripten/pull/2975 for details. A second >> interface enables applications to control vsync timing for >> 30fps/60fps/uncapped vsync rendering. Read more on that here: >> https://github.com/kripken/emscripten/pull/2839 . The uncapped vsync >> control entails some amount of emulation at this point. There is a recent >> email thread at https://www.khronos.org/webgl/public-mailing-list/ >> archives/1411/ titled "[Public WebGL] dev-tools 60fps limiter toggle" >> discussing the addition of proper vsyncless rendering control in the >> browser. If you find this important, please raise your opinion in that >> thread and/or the different bug reports to browsers for support. >> - Emscripten SDK 1.27.0 will be the last compiler release that uses >> the upstream LLVM/Clang 3.3 compiler backend. The 'incoming' development >> branch in Emscripten has been merged to LLVM 3.4 now, so once that matures, >> the next SDK release will be based on that version. >> >> Updating existing installations to 1.27.0 is done with the usual mantra: >> "emsdk update", "emsdk install sdk-1.27.0-64bit", "emsdk activate >> sdk-1.27.0-64bit". For new installations, download packages are directly >> accessible here: >> >> - Windows 64-bit Web Installer: https://s3.amazonaws.com/ >> mozilla-games/emscripten/releases/emsdk-1.25.0-web-64bit.exe >> >> - Windows 64-bit Full Offline Installer: https://s3. >> amazonaws.com/mozilla-games/emscripten/releases/emsdk-1. >> 25.0-full-64bit.exe >> >> - Windows Portable .zip: https://s3.amazonaws. >> com/mozilla-games/emscripten/releases/emsdk-1.25.0-portable-64bit.zip >> >> - Linux and Mac OS X Portable archive: https://s3.amazonaws. >> com/mozilla-games/emscripten/releases/emsdk-portable.tar.gz >> >> This will be the last SDK release for this year, so wish you all >> Emscripteners happy holidays, and keep on making native apps webby! >> >> Jukka >> >> -- > 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 [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. 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