loongarch: rewrite optimization functions in loongarch/itx.S

Change-Id: I1566e8145d36296f2c76107cf15fc2cc7ac0ecc7

src/loongarch/loongson_util.S

@@ -87,4 +87,106 @@
     vpackod.w        \in7,  \in7,  \in9
 .endm
 
+.macro vld_x8 src, start, stride, in0, in1, in2, in3, in4, in5, in6, in7
+    vld           \in0,     \src,     \start
+    vld           \in1,     \src,     \start+(\stride*1)
+    vld           \in2,     \src,     \start+(\stride*2)
+    vld           \in3,     \src,     \start+(\stride*3)
+    vld           \in4,     \src,     \start+(\stride*4)
+    vld           \in5,     \src,     \start+(\stride*5)
+    vld           \in6,     \src,     \start+(\stride*6)
+    vld           \in7,     \src,     \start+(\stride*7)
+.endm
+
+.macro vst_x8 src, start, stride, in0, in1, in2, in3, in4, in5, in6, in7
+    vst           \in0,     \src,     \start
+    vst           \in1,     \src,     \start+(\stride*1)
+    vst           \in2,     \src,     \start+(\stride*2)
+    vst           \in3,     \src,     \start+(\stride*3)
+    vst           \in4,     \src,     \start+(\stride*4)
+    vst           \in5,     \src,     \start+(\stride*5)
+    vst           \in6,     \src,     \start+(\stride*6)
+    vst           \in7,     \src,     \start+(\stride*7)
+.endm
+
+.macro vld_x16 src, start, stride, in0, in1, in2, in3, in4, in5, in6, in7, \
+               in8, in9, in10, in11, in12, in13, in14, in15
+
+    vld_x8 \src, \start, \stride, \in0, \in1, \in2, \in3, \in4, \in5, \in6, \in7
+
+    vld           \in8,     \src,     \start+(\stride*8)
+    vld           \in9,     \src,     \start+(\stride*9)
+    vld           \in10,    \src,     \start+(\stride*10)
+    vld           \in11,    \src,     \start+(\stride*11)
+    vld           \in12,    \src,     \start+(\stride*12)
+    vld           \in13,    \src,     \start+(\stride*13)
+    vld           \in14,    \src,     \start+(\stride*14)
+    vld           \in15,    \src,     \start+(\stride*15)
+.endm
+
+.macro vst_x16 src, start, stride, in0, in1, in2, in3, in4, in5, in6, in7, \
+               in8, in9, in10, in11, in12, in13, in14, in15
+
+    vst_x8 \src, \start, \stride, \in0, \in1, \in2, \in3, \in4, \in5, \in6, \in7
+
+    vst           \in8,     \src,     \start+(\stride*8)
+    vst           \in9,     \src,     \start+(\stride*9)
+    vst           \in10,    \src,     \start+(\stride*10)
+    vst           \in11,    \src,     \start+(\stride*11)
+    vst           \in12,    \src,     \start+(\stride*12)
+    vst           \in13,    \src,     \start+(\stride*13)
+    vst           \in14,    \src,     \start+(\stride*14)
+    vst           \in15,    \src,     \start+(\stride*15)
+.endm
+
+.macro xvld_x8 src, start, stride, in0, in1, in2, in3, in4, in5, in6, in7
+    xvld           \in0,     \src,     \start
+    xvld           \in1,     \src,     \start+(\stride)
+    xvld           \in2,     \src,     \start+(\stride<<1)
+    xvld           \in3,     \src,     \start+(\stride<<1)+(\stride)
+    xvld           \in4,     \src,     \start+(\stride<<2)
+    xvld           \in5,     \src,     \start+(\stride<<2)+(\stride)
+    xvld           \in6,     \src,     \start+(\stride*6)
+    xvld           \in7,     \src,     \start+(\stride<<3)-(\stride)
+.endm
+
+.macro xvst_x8 src, start, stride, in0, in1, in2, in3, in4, in5, in6, in7
+    xvst           \in0,     \src,     \start
+    xvst           \in1,     \src,     \start+(\stride)
+    xvst           \in2,     \src,     \start+(\stride<<1)
+    xvst           \in3,     \src,     \start+(\stride<<1)+(\stride)
+    xvst           \in4,     \src,     \start+(\stride<<2)
+    xvst           \in5,     \src,     \start+(\stride<<2)+(\stride)
+    xvst           \in6,     \src,     \start+(\stride*6)
+    xvst           \in7,     \src,     \start+(\stride<<3)-(\stride)
+.endm
+
+.macro xvld_x16 src, start, stride, in0, in1, in2, in3, in4, in5, in6, in7, \
+                in8, in9, in10, in11, in12, in13, in14, in15
+    xvld_x8 \src, \start, \stride, \in0, \in1, \in2, \in3, \in4, \in5, \in6, \in7
+
+    xvld           \in8,     \src,     \start+(\stride<<3)
+    xvld           \in9,     \src,     \start+(\stride<<3)+(\stride)
+    xvld           \in10,    \src,     \start+(\stride*10)
+    xvld           \in11,    \src,     \start+(\stride*11)
+    xvld           \in12,    \src,     \start+(\stride*12)
+    xvld           \in13,    \src,     \start+(\stride*13)
+    xvld           \in14,    \src,     \start+(\stride*14)
+    xvld           \in15,    \src,     \start+(\stride<<4)-(\stride)
+.endm
+
+.macro xvst_x16 src, start, stride, in0, in1, in2, in3, in4, in5, in6, in7, \
+               in8, in9, in10, in11, in12, in13, in14, in15
+    xvst_x8 \src, \start, \stride, \in0, \in1, \in2, \in3, \in4, \in5, \in6, \in7
+
+    xvst           \in8,     \src,     \start+(\stride<<3)
+    xvst           \in9,     \src,     \start+(\stride<<3)+(\stride)
+    xvst           \in10,    \src,     \start+(\stride*10)
+    xvst           \in11,    \src,     \start+(\stride*11)
+    xvst           \in12,    \src,     \start+(\stride*12)
+    xvst           \in13,    \src,     \start+(\stride*13)
+    xvst           \in14,    \src,     \start+(\stride*14)
+    xvst           \in15,    \src,     \start+(\stride<<4)-(\stride)
+.endm
+
 #endif /* DAV1D_SRC_LOONGSON_UTIL_S */