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lavc/h264dsp: reduce spills in R-V V idct_add16

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release/7.1
Rémi Denis-Courmont 8 months ago
parent 245f76ad74
commit 9135dffd17
1 changed files with 45 additions and 55 deletions
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  1. 100
      libavcodec/riscv/h264idct_rvv.S

100
libavcodec/riscv/h264idct_rvv.S
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@ -422,9 +422,9 @@ func ff_h264_idct\width\()_dc_add_8_rvv, zve64x
.else
vsetivli zero, \width, e8, mf4, ta, ma
.endif
lh a3, 0(a1)
addi a3, a3, 32
srai a3, a3, 6
lh t0, 0(a1)
addi t0, t0, 32
srai t0, t0, 6
sh zero, 0(a1)
.if \width == 8
li a6, \width * \width
@ -435,7 +435,7 @@ func ff_h264_idct\width\()_dc_add_8_rvv, zve64x
vsetivli zero, \width * \width, e16, m2, ta, ma
.endif
vzext.vf2 v0, v24
vadd.vx v0, v0, a3
vadd.vx v0, v0, t0
vmax.vx v0, v0, zero
.if \width == 8
vsetvli zero, zero, e8, m4, ta, ma
@ -464,33 +464,33 @@ func ff_h264_idct\width\()_dc_add_16_rvv, zve64x, zba
.else
vsetivli zero, \width, e16, mf2, ta, ma
.endif
lw a3, 0(a1)
addi a3, a3, 32
srai a3, a3, 6
lw t0, 0(a1)
addi t0, t0, 32
srai t0, t0, 6
sw zero, 0(a1)
add t4, a0, a2
sh1add t5, a2, a0
sh1add t6, a2, t4
add t1, a0, a2
sh1add t2, a2, a0
sh1add t3, a2, t1
.if \width == 8
sh2add t0, a2, a0
sh2add t1, a2, t4
sh2add t2, a2, t5
sh2add t3, a2, t6
sh2add t4, a2, a0
sh2add t5, a2, t1
sh2add t6, a2, t2
sh2add a7, a2, t3
.endif
vle16.v v0, (a0)
vle16.v v1, (t4)
vle16.v v2, (t5)
vle16.v v3, (t6)
vle16.v v1, (t1)
vle16.v v2, (t2)
vle16.v v3, (t3)
.if \width == 8
vle16.v v4, (t0)
vle16.v v5, (t1)
vle16.v v6, (t2)
vle16.v v7, (t3)
vle16.v v4, (t4)
vle16.v v5, (t5)
vle16.v v6, (t6)
vle16.v v7, (a7)
vsetvli a6, zero, e16, m8, ta, ma
.else
vsetvli a6, zero, e16, m4, ta, ma
.endif
vadd.vx v0, v0, a3
vadd.vx v0, v0, t0
vmax.vx v0, v0, zero
vmin.vx v0, v0, a5
.if \width == 8
@ -499,14 +499,14 @@ func ff_h264_idct\width\()_dc_add_16_rvv, zve64x, zba
vsetivli zero, \width, e16, mf2, ta, ma
.endif
vse16.v v0, (a0)
vse16.v v1, (t4)
vse16.v v2, (t5)
vse16.v v3, (t6)
vse16.v v1, (t1)
vse16.v v2, (t2)
vse16.v v3, (t3)
.if \width == 8
vse16.v v4, (t0)
vse16.v v5, (t1)
vse16.v v6, (t2)
vse16.v v7, (t3)
vse16.v v4, (t4)
vse16.v v5, (t5)
vse16.v v6, (t6)
vse16.v v7, (a7)
.endif
ret
endfunc
@ -536,17 +536,12 @@ endconst
.macro idct4_adds type, depth
func ff_h264_idct_add\type\()_\depth\()_rvv, zve32x
csrwi vxrm, 0
addi sp, sp, -64
addi sp, sp, -16
lla t0, ff_h264_scan8
sd s0, (sp)
li t1, 32 * (\depth / 8)
mv s0, sp
sd ra, 8(sp)
sd s1, 16(sp)
sd s2, 24(sp)
sd s3, 32(sp)
sd s4, 40(sp)
sd s5, 48(sp)
vsetivli zero, 16, e8, m1, ta, ma
vle8.v v8, (t0)
.if \depth == 8
@ -570,23 +565,23 @@ func ff_h264_idct_add\type\()_\depth\()_rvv, zve32x
vmand.mm v1, v1, v2
.endif
vsetvli zero, zero, e16, m2, ta, ma
vmv.x.s s2, v0
vmv.x.s s3, v1
li s1, 16
mv s4, a0
mv s5, a1
vmv.x.s a4, v0
vmv.x.s a7, v1
mv t4, a0
mv t5, a1
mv a1, a2
mv a2, a3
li a3, 16
1:
andi t0, s2, 1
addi s1, s1, -1
srli s2, s2, 1
andi t0, a4, 1
addi a3, a3, -1
srli a4, a4, 1
.ifc \type, 16
beqz t0, 3f # if (nnz)
.endif
lw t2, (s5) # block_offset[i]
andi t1, s3, 1
add a0, s4, t2
lw t2, (t5) # block_offset[i]
andi t1, a7, 1
add a0, t4, t2
.ifc \type, 16
bnez t1, 2f # if (nnz == 1 && block[i * 16])
.else
@ -600,19 +595,14 @@ func ff_h264_idct_add\type\()_\depth\()_rvv, zve32x
.endif
jal ff_h264_idct4_dc_add_\depth\()_rvv
3:
srli s3, s3, 1
addi s5, s5, 4
srli a7, a7, 1
addi t5, t5, 4
addi a1, a1, 16 * 2 * (\depth / 8)
bnez s1, 1b
bnez a3, 1b
ld s5, 48(sp)
ld s4, 40(sp)
ld s3, 32(sp)
ld s2, 24(sp)
ld s1, 16(sp)
ld ra, 8(sp)
ld s0, 0(sp)
addi sp, sp, 64
addi sp, sp, 16
ret
endfunc
.endm

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