Use ARM NEON for web build for tiny performance gain

1 files changed, 6 insertions, 2 deletions

diff --git a/build b/build
index 49f0bca..066958e 100755
--- a/build
+++ b/build
@@ -135,10 +135,14 @@ CPPFLAGS="-std=c++20 -pthread"
 # -sMAXIMUM_MEMORY=10737418240 to WASMLINKFLAGS. This way we can enable
 # solvers larger than h48h6k2 in the web version.
 
+# TODO:
+# The options below have to be adjusted when native WASM_SIMD is implemented.
+
 # Build flags for emscripten (WASM target)
-WASMCFLAGS="-std=c11 -fPIC -D_POSIX_C_SOURCE=199309L -pthread"
+WASMCFLAGS="-std=c11 -fPIC -D_POSIX_C_SOURCE=199309L -pthread \
+            -mfpu=neon -mrelaxed-simd"
 WASMCPPFLAGS="-std=c++20 -pthread"
-WASMMFLAGS="-DTHREADS=$THREADS -DWASMSIMD"
+WASMMFLAGS="-DTHREADS=$THREADS -DNEON"
 WASMLINKFLAGS="--no-entry -sEXPORT_NAME='Nissy' -sMODULARIZE 
         -sALLOW_MEMORY_GROWTH -sSTACK_SIZE=5MB -sPTHREAD_POOL_SIZE=$THREADS \
         -sFETCH -sASYNCIFY -sLINKABLE -sEXPORT_ALL"