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https://github.com/openharmony/third_party_dav1d.git
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AArch64: Trim Armv8.0 Neon path of 6-tap and 8-tap MC functions
There are some instruction sequences we could merge after the lane
load/store patch (c28f364cef).
This change will simplify the loading of filter weights to save 288
bytes in the Armv8.0 Neon path of 6-tap and 8-tap MC functions.
This commit is contained in:
Arpad Panyik
committed by
Martin Storsjö
Martin Storsjö
parent
948e739d7d
commit
b8110a4c14
+11
-22
@@ -1475,8 +1475,7 @@ L(\type\()_\taps\()_h):
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20: // 2xN h
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AARCH64_VALID_JUMP_TARGET
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.ifc \type, put
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add \xmx, \xmx, #2
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ldr s0, [\xmx]
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ldur s0, [\xmx, #2]
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sub \src, \src, #1
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add \ds2, \dst, \d_strd
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add \sr2, \src, \s_strd
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@@ -1509,8 +1508,7 @@ L(\type\()_\taps\()_h):
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40: // 4xN h
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AARCH64_VALID_JUMP_TARGET
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add \xmx, \xmx, #2
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ldr s0, [\xmx]
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ldur s0, [\xmx, #2]
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sub \src, \src, #1
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add \ds2, \dst, \d_strd
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add \sr2, \src, \s_strd
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@@ -1741,8 +1739,7 @@ function L(\type\()_\taps\()_v)
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b.gt 28f
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cmp \h, #2
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add \xmy, \xmy, #2
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ldr s0, [\xmy]
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ldur s0, [\xmy, #2]
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sub \src, \src, \s_strd
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add \ds2, \dst, \d_strd
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add \sr2, \src, \s_strd
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@@ -1821,8 +1818,7 @@ function L(\type\()_\taps\()_v)
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// 4x2, 4x4 v
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cmp \h, #2
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add \xmy, \xmy, #2
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ldr s0, [\xmy]
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ldur s0, [\xmy, #2]
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sub \src, \src, \s_strd
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add \ds2, \dst, \d_strd
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add \sr2, \src, \s_strd
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@@ -1897,8 +1893,7 @@ function L(\type\()_\taps\()_v)
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// 8x2, 8x4 v
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cmp \h, #2
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add \xmy, \xmy, #2
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ldr s0, [\xmy]
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ldur s0, [\xmy, #2]
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sub \src, \src, \s_strd
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add \ds2, \dst, \d_strd
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add \sr2, \src, \s_strd
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@@ -1996,8 +1991,7 @@ function L(\type\()_\taps\()_v)
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b.gt 1680b
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// 16x2, 16x4 v
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add \xmy, \xmy, #2
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ldr s0, [\xmy]
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ldur s0, [\xmy, #2]
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sub \src, \src, \s_strd
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add \ds2, \dst, \d_strd
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add \sr2, \src, \s_strd
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@@ -2064,11 +2058,9 @@ function L(\type\()_\taps\()_hv)
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20:
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AARCH64_VALID_JUMP_TARGET
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.ifc \type, put
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add \xmx, \xmx, #2
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ldr s0, [\xmx]
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ldur s0, [\xmx, #2]
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b.gt 280f
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add \xmy, \xmy, #2
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ldr s1, [\xmy]
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ldur s1, [\xmy, #2]
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// 2x2, 2x4 hv
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sub \sr2, \src, #1
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@@ -2202,11 +2194,9 @@ L(\type\()_\taps\()_filter_2):
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40:
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AARCH64_VALID_JUMP_TARGET
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add \xmx, \xmx, #2
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ldr s0, [\xmx]
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ldur s0, [\xmx, #2]
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b.gt 480f
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add \xmy, \xmy, #2
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ldr s1, [\xmy]
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ldur s1, [\xmy, #2]
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sub \sr2, \src, #1
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sub \src, \sr2, \s_strd
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add \ds2, \dst, \d_strd
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@@ -2396,9 +2386,8 @@ L(\type\()_\taps\()_filter_4):
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320:
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AARCH64_VALID_JUMP_TARGET
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b.gt 880f
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add \xmy, \xmy, #2
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ld1 {v0.8b}, [\xmx]
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ldr s1, [\xmy]
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ldur s1, [\xmy, #2]
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.ifc \taps, 6tap
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sub \src, \src, #2
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.else
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+11
-22
@@ -1618,8 +1618,7 @@ L(\type\()_\taps\()_h):
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20: // 2xN h
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AARCH64_VALID_JUMP_TARGET
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.ifc \type, put
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add \xmx, \xmx, #2
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ldr s0, [\xmx]
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ldur s0, [\xmx, #2]
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sub \src, \src, #2
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add \ds2, \dst, \d_strd
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add \sr2, \src, \s_strd
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@@ -1651,8 +1650,7 @@ L(\type\()_\taps\()_h):
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40: // 4xN h
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AARCH64_VALID_JUMP_TARGET
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add \xmx, \xmx, #2
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ldr s0, [\xmx]
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ldur s0, [\xmx, #2]
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sub \src, \src, #2
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add \ds2, \dst, \d_strd
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add \sr2, \src, \s_strd
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@@ -1859,8 +1857,7 @@ function L(\type\()_\taps\()_v)
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b.gt 28f
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cmp \h, #2
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add \xmy, \xmy, #2
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ldr s0, [\xmy]
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ldur s0, [\xmy, #2]
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sub \src, \src, \s_strd
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add \ds2, \dst, \d_strd
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add \sr2, \src, \s_strd
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@@ -1937,8 +1934,7 @@ function L(\type\()_\taps\()_v)
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// 4x2, 4x4 v
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cmp \h, #2
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add \xmy, \xmy, #2
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ldr s0, [\xmy]
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ldur s0, [\xmy, #2]
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sub \src, \src, \s_strd
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add \ds2, \dst, \d_strd
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add \sr2, \src, \s_strd
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@@ -2002,8 +1998,7 @@ function L(\type\()_\taps\()_v)
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// 8x2, 8x4 v
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cmp \h, #2
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add \xmy, \xmy, #2
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ldr s0, [\xmy]
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ldur s0, [\xmy, #2]
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sub \src, \src, \s_strd
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add \ds2, \dst, \d_strd
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add \sr2, \src, \s_strd
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@@ -2091,8 +2086,7 @@ function L(\type\()_\taps\()_v)
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b.gt 1680b
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// 16x2, 16x4 v
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add \xmy, \xmy, #2
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ldr s0, [\xmy]
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ldur s0, [\xmy, #2]
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sub \src, \src, \s_strd
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sxtl v0.8h, v0.8b
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@@ -2154,11 +2148,9 @@ function L(\type\()_\taps\()_hv)
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20:
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AARCH64_VALID_JUMP_TARGET
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.ifc \type, put
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add \xmx, \xmx, #2
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ldr s0, [\xmx]
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ldur s0, [\xmx, #2]
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b.gt 280f
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add \xmy, \xmy, #2
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ldr s1, [\xmy]
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ldur s1, [\xmy, #2]
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// 2x2, 2x4 hv
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sub \sr2, \src, #2
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@@ -2301,11 +2293,9 @@ L(\type\()_\taps\()_filter_2):
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40:
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AARCH64_VALID_JUMP_TARGET
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add \xmx, \xmx, #2
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ldr s0, [\xmx]
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ldur s0, [\xmx, #2]
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b.gt 480f
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add \xmy, \xmy, #2
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ldr s1, [\xmy]
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ldur s1, [\xmy, #2]
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sub \sr2, \src, #2
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sub \src, \sr2, \s_strd
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add \ds2, \dst, \d_strd
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@@ -2501,9 +2491,8 @@ L(\type\()_\taps\()_filter_4):
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320:
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AARCH64_VALID_JUMP_TARGET
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b.gt 880f
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add \xmy, \xmy, #2
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ld1 {v0.8b}, [\xmx]
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ldr s1, [\xmy]
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ldur s1, [\xmy, #2]
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.ifc \taps, 6tap
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sub \src, \src, #4
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.else
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