From 0e100a4d892cbdcdb7f326213ec1e4d0d1ae6d89 Mon Sep 17 00:00:00 2001 From: Lorn Potter Date: Fri, 16 Apr 2021 15:34:57 +1000 Subject: wasm: add simd support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Emscripten only supports SSE1, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, and 128-bit AVX instruction sets at this time. https://emscripten.org/docs/porting/simd.html Browsers might need to enable simd support in the advanced configurations about: config or chrome:flags Enable by configuring Qt with -sse2 Pick-to: 6.2 Fixes: QTBUG-63924 Change-Id: Ifeafae20e199dee0d19689802ad20fd0bd424ca7 Reviewed-by: Morten Johan Sørvig --- cmake/QtCompilerOptimization.cmake | 3 +++ 1 file changed, 3 insertions(+) (limited to 'cmake/QtCompilerOptimization.cmake') diff --git a/cmake/QtCompilerOptimization.cmake b/cmake/QtCompilerOptimization.cmake index 952ace6652..69029a59de 100644 --- a/cmake/QtCompilerOptimization.cmake +++ b/cmake/QtCompilerOptimization.cmake @@ -199,4 +199,7 @@ if(WASM) set(QT_CFLAGS_OPTIMIZE_FULL "-O3") set(QT_CFLAGS_OPTIMIZE_SIZE "-Os") set(QT_CFLAGS_OPTIMIZE_DEBUG "-g2") + + set(QT_CFLAGS_SSE2 -O2 -msimd128 -msse -msse2) + endif() -- cgit v1.2.3