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| author | Lorn Potter <lorn.potter@gmail.com> | 2021-04-16 15:34:57 +1000 |
|---|---|---|
| committer | Qt Cherry-pick Bot <cherrypick_bot@qt-project.org> | 2021-10-05 01:30:16 +0000 |
| commit | 01fe5aaeea74cc25d4052fec0be6d7d03e0faec0 (patch) | |
| tree | f29c53f354741b3607c2bf2a5475fa8043a3e4df /mkspecs | |
| parent | dfe98121e9bbc769d06949a7d2ec6e57ae86d0b7 (diff) | |
wasm: add simd support
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
Fixes: QTBUG-63924
Change-Id: Ifeafae20e199dee0d19689802ad20fd0bd424ca7
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
(cherry picked from commit 0e100a4d892cbdcdb7f326213ec1e4d0d1ae6d89)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Diffstat (limited to 'mkspecs')
| -rw-r--r-- | mkspecs/features/wasm/wasm.prf | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mkspecs/features/wasm/wasm.prf b/mkspecs/features/wasm/wasm.prf index 5ffc647135..e1b10cb23a 100644 --- a/mkspecs/features/wasm/wasm.prf +++ b/mkspecs/features/wasm/wasm.prf @@ -36,6 +36,14 @@ exists($$QMAKE_QT_CONFIG) { message("Setting INITIAL_MEMORY to" $$INITIAL_MEMORY) EMCC_THREAD_LFLAGS += -s INITIAL_MEMORY=$$INITIAL_MEMORY } + + qtConfig(sse2) { + QMAKE_CFLAGS += -O2 -msimd128 -msse -msse2 + QMAKE_CXXFLAGS += -O2 -msimd128 -msse -msse2 + QMAKE_LFLAGS += -msimd128 -msse -msse2 + QMAKE_LFLAGS_DEBUG += -msimd128 -msse -msse2 + } + QMAKE_LFLAGS += $$EMCC_THREAD_LFLAGS QMAKE_LFLAGS_DEBUG += $$EMCC_THREAD_LFLAGS QMAKE_CFLAGS += $$EMCC_THREAD_LFLAGS |