docker: use -O2 instead of -O3 on emscripten
O3 has some bugs which our tests cause to manifest, so -O2 for now.
@@ -8,8 +8,8 @@ exe_wrapper = ['/usr/bin/v8', '--experimental-wasm-simd']
[properties]
skip_sanity_check = true
-c_args = ['-Weverything', '-Werror', '-O3', '-msimd128']
-cpp_args = ['-Weverything', '-Werror', '-O3', '-msimd128']
+c_args = ['-Weverything', '-Werror', '-O2', '-msimd128']
+cpp_args = ['-Weverything', '-Werror', '-O2', '-msimd128']
c_link_args = ['-s', 'ENVIRONMENT=shell']
cpp_link_args = ['-s', 'ENVIRONMENT=shell']
