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Code Issues Releases Activity

x86/tx_float: enable AVX-only split-radix FFT codelets

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Sandy Bridge, Ivy Bridge and Bulldozer cores don't support FMA3.
This commit is contained in:
Lynne
2022-09-24 03:51:48 +02:00
parent d2f482965f
commit f21899db7d
2 changed files with 10 additions and 0 deletions
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2
libavutil/x86/tx_float.asm
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@@ -1379,6 +1379,8 @@ cglobal fft_sr_ns_float, 4, 10, 16, 272, ctx, out, in, tmp, len, lut, itab, rtab
%endmacro
%if ARCH_X86_64
FFT_SPLIT_RADIX_FN avx, 0
FFT_SPLIT_RADIX_FN avx, 1
FFT_SPLIT_RADIX_FN fma3, 0
FFT_SPLIT_RADIX_FN fma3, 1
%if HAVE_AVX2_EXTERNAL

8
libavutil/x86/tx_float_init.c
View File

@@ -38,6 +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)
@@ -57,6 +59,7 @@ TX_DECL_FN(fft16_asm, avx)
TX_DECL_FN(fft16_asm, fma3)
TX_DECL_FN(fft32_asm, avx)
TX_DECL_FN(fft32_asm, fma3)
TX_DECL_FN(fft_sr_asm, avx)
TX_DECL_FN(fft_sr_asm, fma3)
TX_DECL_FN(fft_sr_asm, avx2)
@@ -214,6 +217,11 @@ const FFTXCodelet * const ff_tx_codelet_list_float_x86[] = {
AV_TX_INPLACE | FF_TX_PRESHUFFLE | FF_TX_ASM_CALL, 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),
TX_DEF(fft_sr, FFT, 64, 131072, 2, 0, 256, b8_i2, avx, AVX, 0, AV_CPU_FLAG_AVXSLOW),
TX_DEF(fft_sr_asm, FFT, 64, 131072, 2, 0, 320, b8_i2, avx, AVX,
AV_TX_INPLACE | FF_TX_PRESHUFFLE | FF_TX_ASM_CALL, 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,
AV_CPU_FLAG_AVXSLOW),
TX_DEF(fft_sr, FFT, 64, 131072, 2, 0, 288, b8_i2, fma3, FMA3, 0, AV_CPU_FLAG_AVXSLOW),
TX_DEF(fft_sr_asm, FFT, 64, 131072, 2, 0, 352, b8_i2, fma3, FMA3,
AV_TX_INPLACE | FF_TX_PRESHUFFLE | FF_TX_ASM_CALL, AV_CPU_FLAG_AVXSLOW),