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make DCE on emscripten/wasm configurable and disabled by default

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Sebastian Krzyszkowiak 2019-02-08 02:12:31 +01:00
parent 26a32fd083
commit d878a86634
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1 changed files with 9 additions and 1 deletions
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10
cmake/libsuperderpy.cmake
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@ -215,7 +215,15 @@ if (NOT LIBSUPERDERPY_CONFIG_INCLUDED)
set_property(CACHE LIBSUPERDERPY_EMSCRIPTEN_MODE PROPERTY STRINGS "asm.js;wasm")
if("${LIBSUPERDERPY_EMSCRIPTEN_MODE}" STREQUAL "wasm")
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -s WASM=1")
set(EMSCRIPTEN_FLAGS ${EMSCRIPTEN_FLAGS} -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 --no-heap-copy -s MAIN_MODULE=2 -s EXPORTED_FUNCTIONS=@${CMAKE_BINARY_DIR}/emscripten-imports.json)
set(EMSCRIPTEN_FLAGS ${EMSCRIPTEN_FLAGS} -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 --no-heap-copy)
option(EMSCRIPTEN_DCE "Enable dead code elimination in WebAssembly build" OFF) # off by default due to issues with libc functions not getting exported
if (EMSCRIPTEN_DCE)
set(EMSCRIPTEN_FLAGS ${EMSCRIPTEN_FLAGS} -s MAIN_MODULE=2 -s EXPORTED_FUNCTIONS=@${CMAKE_BINARY_DIR}/emscripten-imports.json)
else (EMSCRIPTEN_DCE)
set(EMSCRIPTEN_FLAGS ${EMSCRIPTEN_FLAGS} -s MAIN_MODULE=1 -s EXPORT_ALL=1)
endif(EMSCRIPTEN_DCE)
set(CMAKE_SHARED_MODULE_SUFFIX ".wasm.so")
add_definitions(-DLIBSUPERDERPY_WASM=1)
else()