lavc/huffyuvdsp: optimise RVV vtype for add_hfyu_left_pred_bgr32

T-Head C908: add_hfyu_left_pred_bgr32_c: 237.5 add_hfyu_left_pred_bgr32_rvv_i32: 173.5 (before) add_hfyu_left_pred_bgr32_rvv_i32: 110.0 (after)

Rémi Denis-Courmont committed 2 years ago

Commit 463c5731 parent 233066e2 files · +6 −3Browse files

Unified · Split

2 files

@@ -35,7 +35,8 @@ av_cold void ff_huffyuvdsp_init_riscv(HuffYUVDSPContext *c, · 34 unmodified lines
35	35
36	36	if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR)) {
37	37	c->add_int16 = ff_add_int16_rvv;
38		− c->add_hfyu_left_pred_bgr32 = ff_add_hfyu_left_pred_bgr32_rvv;
	38	+ if (flags & AV_CPU_FLAG_RVB_BASIC)
	39	+ c->add_hfyu_left_pred_bgr32 = ff_add_hfyu_left_pred_bgr32_rvv;
39	40	}
40	41	#endif
41	42	}

@@ -36,8 +36,10 @@ func ff_add_int16_rvv, zve32x · 35 unmodified lines
36	36	ret
37	37	endfunc
38	38
39		−func ff_add_hfyu_left_pred_bgr32_rvv, zve32x
40		− vsetivli zero, 4, e8, m1, ta, ma
	39	+func ff_add_hfyu_left_pred_bgr32_rvv, zve32x, zbb
	40	+ vtype_ivli t1, 4, e8, ta, ma
	41	+ li t0, 4
	42	+ vsetvl zero, t0, t1
41	43	vle8.v v8, (a3)
42	44	sh2add a2, a2, a1
43	45	1:

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