diff options
| author | Lynne <dev@lynne.ee> | 2022-05-21 01:39:12 +0200 |
|---|---|---|
| committer | Lynne <dev@lynne.ee> | 2022-05-21 02:11:50 +0200 |
| commit | 27cffd16aadd04bf2311e3114b8aa81e3732552f (patch) | |
| tree | b066e2956c0cd5bc0b848329963607c96ef1bc28 /libavutil/x86/tx_float_init.c | |
| parent | 0938ff97016884184796c3dd80bc6fcb729e875b (diff) | |
x86/tx_float: replace fft_sr_avx with fft_sr_fma3
When the SLOW_GATHER flag was added to the AVX2 version, this
made FMA3-features not enabled on Zen CPUs.
As FMA3 adds 6-7% across all platforms that support it, in
the interest of saving space, this commit removes the AVX
version and replaces it with an FMA3 version.
The only CPUs affected are Sandy Bridge and Bulldozer, which
have AVX support, but no FMA3 support.
In the future, if there's a demand for it, a version of the
function duplicated for AVX can be added.
Diffstat (limited to 'libavutil/x86/tx_float_init.c')
| -rw-r--r-- | libavutil/x86/tx_float_init.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/libavutil/x86/tx_float_init.c b/libavutil/x86/tx_float_init.c index 108f9b4b04..5db0b57d13 100644 --- a/libavutil/x86/tx_float_init.c +++ b/libavutil/x86/tx_float_init.c @@ -38,8 +38,8 @@ TX_DECL_FN(fft32, avx) TX_DECL_FN(fft32_ns, avx) TX_DECL_FN(fft32, fma3) TX_DECL_FN(fft32_ns, fma3) -TX_DECL_FN(fft_sr, avx) -TX_DECL_FN(fft_sr_ns, avx) +TX_DECL_FN(fft_sr, fma3) +TX_DECL_FN(fft_sr_ns, fma3) TX_DECL_FN(fft_sr, avx2) TX_DECL_FN(fft_sr_ns, avx2) @@ -88,13 +88,13 @@ const FFTXCodelet * const ff_tx_codelet_list_float_x86[] = { TX_DEF(fft32, FFT, 32, 32, 2, 0, 288, b8_i2, fma3, FMA3, AV_TX_INPLACE, AV_CPU_FLAG_AVXSLOW), TX_DEF(fft32_ns, FFT, 32, 32, 2, 0, 352, b8_i2, fma3, FMA3, AV_TX_INPLACE | FF_TX_PRESHUFFLE, AV_CPU_FLAG_AVXSLOW), -#if HAVE_AVX2_EXTERNAL - TX_DEF(fft_sr, FFT, 64, 131072, 2, 0, 256, b8_i2, avx, AVX, 0, AV_CPU_FLAG_AVXSLOW), - TX_DEF(fft_sr_ns, FFT, 64, 131072, 2, 0, 320, b8_i2, avx, AVX, AV_TX_INPLACE | FF_TX_PRESHUFFLE, + TX_DEF(fft_sr, FFT, 64, 131072, 2, 0, 288, b8_i2, fma3, FMA3, 0, AV_CPU_FLAG_AVXSLOW), + TX_DEF(fft_sr_ns, FFT, 64, 131072, 2, 0, 352, b8_i2, fma3, FMA3, AV_TX_INPLACE | FF_TX_PRESHUFFLE, AV_CPU_FLAG_AVXSLOW), - TX_DEF(fft_sr, FFT, 64, 131072, 2, 0, 288, b8_i2, avx2, AVX2, 0, +#if HAVE_AVX2_EXTERNAL + TX_DEF(fft_sr, FFT, 64, 131072, 2, 0, 320, b8_i2, avx2, AVX2, 0, AV_CPU_FLAG_AVXSLOW | AV_CPU_FLAG_SLOW_GATHER), - TX_DEF(fft_sr_ns, FFT, 64, 131072, 2, 0, 352, b8_i2, avx2, AVX2, AV_TX_INPLACE | FF_TX_PRESHUFFLE, + TX_DEF(fft_sr_ns, FFT, 64, 131072, 2, 0, 384, b8_i2, avx2, AVX2, AV_TX_INPLACE | FF_TX_PRESHUFFLE, AV_CPU_FLAG_AVXSLOW | AV_CPU_FLAG_SLOW_GATHER), #endif #endif |