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| author | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2014-09-22 17:15:45 +0300 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2020-08-18 17:01:36 -0700 |
| commit | 932c9ea09ae204f7a3ef6d46e769a59e6b62a76e (patch) | |
| tree | 83a19a44cc45d78b3182bda8c1cc88e596334b02 | |
| parent | 6dc7aa8da11a450b2cd252fd432c237cd1534acf (diff) | |
| download | sbc-932c9ea09ae204f7a3ef6d46e769a59e6b62a76e.tar.gz | |
sbc/sbc_primitives_sse: Optimize sbc_analyze_8s
This makes use 128 bit XMM registers whenever possible.
$ time src/sbcenc_mmx -s 8 sin_64m.au > /dev/null
real 0m1.064s
user 0m1.012s
sys 0m0.049s
=== After ====
$ time src/sbcenc -s 8 sin_64m.au > /dev/null
real 0m1.032s
user 0m0.996s
sys 0m0.033s
| -rw-r--r-- | sbc/sbc_primitives_sse.c | 109 |
1 files changed, 44 insertions, 65 deletions
diff --git a/sbc/sbc_primitives_sse.c b/sbc/sbc_primitives_sse.c index 2a903e1..9bff6cf 100644 --- a/sbc/sbc_primitives_sse.c +++ b/sbc/sbc_primitives_sse.c @@ -96,80 +96,59 @@ static inline void sbc_analyze_four_sse(const int16_t *in, int32_t *out, static inline void sbc_analyze_eight_sse(const int16_t *in, int32_t *out, const FIXED_T *consts) { - static const SBC_ALIGNED int32_t round_c[2] = { + static const SBC_ALIGNED int32_t round_c[4] = { + 1 << (SBC_PROTO_FIXED8_SCALE - 1), + 1 << (SBC_PROTO_FIXED8_SCALE - 1), 1 << (SBC_PROTO_FIXED8_SCALE - 1), 1 << (SBC_PROTO_FIXED8_SCALE - 1), }; __asm__ volatile ( - "movq (%0), %%mm0\n" - "movq 8(%0), %%mm1\n" - "movq 16(%0), %%mm2\n" - "movq 24(%0), %%mm3\n" - "pmaddwd (%1), %%mm0\n" - "pmaddwd 8(%1), %%mm1\n" - "pmaddwd 16(%1), %%mm2\n" - "pmaddwd 24(%1), %%mm3\n" - "paddd (%2), %%mm0\n" - "paddd (%2), %%mm1\n" - "paddd (%2), %%mm2\n" - "paddd (%2), %%mm3\n" + "movdqu (%0), %%xmm0\n" + "movdqu 16(%0), %%xmm1\n" + "pmaddwd (%1), %%xmm0\n" + "pmaddwd 16(%1), %%xmm1\n" + "paddd (%2), %%xmm0\n" + "paddd (%2), %%xmm1\n" "\n" - "movq 32(%0), %%mm4\n" - "movq 40(%0), %%mm5\n" - "movq 48(%0), %%mm6\n" - "movq 56(%0), %%mm7\n" - "pmaddwd 32(%1), %%mm4\n" - "pmaddwd 40(%1), %%mm5\n" - "pmaddwd 48(%1), %%mm6\n" - "pmaddwd 56(%1), %%mm7\n" - "paddd %%mm4, %%mm0\n" - "paddd %%mm5, %%mm1\n" - "paddd %%mm6, %%mm2\n" - "paddd %%mm7, %%mm3\n" + "movdqu 32(%0), %%xmm2\n" + "movdqu 48(%0), %%xmm3\n" + "pmaddwd 32(%1), %%xmm2\n" + "pmaddwd 48(%1), %%xmm3\n" + "paddd %%xmm2, %%xmm0\n" + "paddd %%xmm3, %%xmm1\n" "\n" - "movq 64(%0), %%mm4\n" - "movq 72(%0), %%mm5\n" - "movq 80(%0), %%mm6\n" - "movq 88(%0), %%mm7\n" - "pmaddwd 64(%1), %%mm4\n" - "pmaddwd 72(%1), %%mm5\n" - "pmaddwd 80(%1), %%mm6\n" - "pmaddwd 88(%1), %%mm7\n" - "paddd %%mm4, %%mm0\n" - "paddd %%mm5, %%mm1\n" - "paddd %%mm6, %%mm2\n" - "paddd %%mm7, %%mm3\n" + "movdqu 64(%0), %%xmm2\n" + "movdqu 80(%0), %%xmm3\n" + "pmaddwd 64(%1), %%xmm2\n" + "pmaddwd 80(%1), %%xmm3\n" + "paddd %%xmm2, %%xmm0\n" + "paddd %%xmm3, %%xmm1\n" "\n" - "movq 96(%0), %%mm4\n" - "movq 104(%0), %%mm5\n" - "movq 112(%0), %%mm6\n" - "movq 120(%0), %%mm7\n" - "pmaddwd 96(%1), %%mm4\n" - "pmaddwd 104(%1), %%mm5\n" - "pmaddwd 112(%1), %%mm6\n" - "pmaddwd 120(%1), %%mm7\n" - "paddd %%mm4, %%mm0\n" - "paddd %%mm5, %%mm1\n" - "paddd %%mm6, %%mm2\n" - "paddd %%mm7, %%mm3\n" + "movdqu 96(%0), %%xmm2\n" + "movdqu 112(%0), %%xmm3\n" + "pmaddwd 96(%1), %%xmm2\n" + "pmaddwd 112(%1), %%xmm3\n" + "paddd %%xmm2, %%xmm0\n" + "paddd %%xmm3, %%xmm1\n" "\n" - "movq 128(%0), %%mm4\n" - "movq 136(%0), %%mm5\n" - "movq 144(%0), %%mm6\n" - "movq 152(%0), %%mm7\n" - "pmaddwd 128(%1), %%mm4\n" - "pmaddwd 136(%1), %%mm5\n" - "pmaddwd 144(%1), %%mm6\n" - "pmaddwd 152(%1), %%mm7\n" - "paddd %%mm4, %%mm0\n" - "paddd %%mm5, %%mm1\n" - "paddd %%mm6, %%mm2\n" - "paddd %%mm7, %%mm3\n" + "movdqu 128(%0), %%xmm2\n" + "movdqu 144(%0), %%xmm3\n" + "pmaddwd 128(%1), %%xmm2\n" + "pmaddwd 144(%1), %%xmm3\n" + "paddd %%xmm2, %%xmm0\n" + "paddd %%xmm3, %%xmm1\n" + "\n" + "psrad %4, %%xmm0\n" + "psrad %4, %%xmm1\n" "\n" - "psrad %4, %%mm0\n" - "psrad %4, %%mm1\n" - "psrad %4, %%mm2\n" - "psrad %4, %%mm3\n" + "movdqa %%xmm0, %%xmm2\n" + "movdqa %%xmm1, %%xmm3\n" + "punpckhqdq %%xmm2, %%xmm2\n" + "punpckhqdq %%xmm3, %%xmm3\n" + "movdq2q %%xmm0, %%mm0\n" + "movdq2q %%xmm2, %%mm1\n" + "movdq2q %%xmm1, %%mm2\n" + "movdq2q %%xmm3, %%mm3\n" "\n" "packssdw %%mm0, %%mm0\n" "packssdw %%mm1, %%mm1\n" |