Oh sorry . I can't build it by O3.
在2021年6月30日星期三 UTC+8 下午3:47:04<Yahan Lu> 写道：
> I build simd.cc :
>
> #include <wasm_simd128.h>
> int fun(v128_t a,v128_t b) {
> v128_t prod = wasm_i32x4_add(a, b);
> return prod[0];
> }
> int main() {
> v128_t a = {1,2,3,4};
> v128_t b = {5,4,6,8};
> return fun(a,b);
> }
>
> Build it:
> emcc -msimd128 -O3 foo.c -o foo.js
>
> And run
> ./arm64.debug/d8 ./foo.js --experimental-wasm-simd --print-code
>
> But i don't find any Neon instr in code that be printed by v8?
> I remeber it can work on January 2021.
>
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