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Commit c5de4d09 authored by easyaspi314's avatar easyaspi314 Committed by Michael R. Crusoe
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neon: Add qtbl/qtbx polyfills for A32V7 

Similar to _mm_shuffle_epi8, qtbl/qtbx now split up to multiple shuffles on
A32V7. With multi-vector shuffles, two tables are created, the indexes
are subtracted, and either TBX'd on the result of the other table or ORR'd
together (TBX is mandatory for qtbx, but ORR is chosen when the lookups would
not be theoretically dual issued).
parent 3bda0d7c
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arm/neon/qtbl.h
View file @ c5de4d09
...@@ -40,6 +40,10 @@ simde_uint8x8_t ...@@ -40,6 +40,10 @@ simde_uint8x8_t
simde_vqtbl1_u8(simde_uint8x16_t t, simde_uint8x8_t idx) { simde_vqtbl1_u8(simde_uint8x16_t t, simde_uint8x8_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbl1_u8(t, idx); return vqtbl1_u8(t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8x2_t split;
simde_memcpy(&split, &t, sizeof(split));
return vtbl2_u8(split, idx);
#else #else
simde_uint8x16_private t_ = simde_uint8x16_to_private(t); simde_uint8x16_private t_ = simde_uint8x16_to_private(t);
simde_uint8x8_private simde_uint8x8_private
...@@ -86,6 +90,10 @@ simde_uint8x8_t ...@@ -86,6 +90,10 @@ simde_uint8x8_t
simde_vqtbl2_u8(simde_uint8x16x2_t t, simde_uint8x8_t idx) { simde_vqtbl2_u8(simde_uint8x16x2_t t, simde_uint8x8_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbl2_u8(t, idx); return vqtbl2_u8(t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8x4_t split;
simde_memcpy(&split, &t, sizeof(split));
return vtbl4_u8(split, idx);
#else #else
simde_uint8x16_private t_[2] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]) }; simde_uint8x16_private t_[2] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]) };
simde_uint8x8_private simde_uint8x8_private
...@@ -135,6 +143,15 @@ simde_uint8x8_t ...@@ -135,6 +143,15 @@ simde_uint8x8_t
simde_vqtbl3_u8(simde_uint8x16x3_t t, simde_uint8x8_t idx) { simde_vqtbl3_u8(simde_uint8x16x3_t t, simde_uint8x8_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbl3_u8(t, idx); return vqtbl3_u8(t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8_t idx_hi = vsub_u8(idx, vdup_n_u8(32));
uint8x8x4_t split_lo;
uint8x8x2_t split_hi;
simde_memcpy(&split_lo, &t.val[0], sizeof(split_lo));
simde_memcpy(&split_hi, &t.val[2], sizeof(split_hi));
uint8x8_t lo = vtbl4_u8(split_lo, idx);
uint8x8_t hi = vtbl2_u8(split_hi, idx_hi);
return vorr_u8(lo, hi);
#else #else
simde_uint8x16_private t_[3] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]), simde_uint8x16_private t_[3] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]),
simde_uint8x16_to_private(t.val[2]) }; simde_uint8x16_to_private(t.val[2]) };
...@@ -187,6 +204,15 @@ simde_uint8x8_t ...@@ -187,6 +204,15 @@ simde_uint8x8_t
simde_vqtbl4_u8(simde_uint8x16x4_t t, simde_uint8x8_t idx) { simde_vqtbl4_u8(simde_uint8x16x4_t t, simde_uint8x8_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbl4_u8(t, idx); return vqtbl4_u8(t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8_t idx_hi = vsub_u8(idx, vdup_n_u8(32));
uint8x8x4_t split_lo;
uint8x8x4_t split_hi;
simde_memcpy(&split_lo, &t.val[0], sizeof(split_lo));
simde_memcpy(&split_hi, &t.val[2], sizeof(split_hi));
uint8x8_t lo = vtbl4_u8(split_lo, idx);
uint8x8_t hi = vtbl4_u8(split_hi, idx_hi);
return vorr_u8(lo, hi);
#else #else
simde_uint8x16_private t_[4] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]), simde_uint8x16_private t_[4] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]),
simde_uint8x16_to_private(t.val[2]), simde_uint8x16_to_private(t.val[3]) }; simde_uint8x16_to_private(t.val[2]), simde_uint8x16_to_private(t.val[3]) };
...@@ -244,6 +270,12 @@ simde_uint8x16_t ...@@ -244,6 +270,12 @@ simde_uint8x16_t
simde_vqtbl1q_u8(simde_uint8x16_t t, simde_uint8x16_t idx) { simde_vqtbl1q_u8(simde_uint8x16_t t, simde_uint8x16_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbl1q_u8(t, idx); return vqtbl1q_u8(t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8x2_t split;
simde_memcpy(&split, &t, sizeof(split));
uint8x8_t lo = vtbl2_u8(split, vget_low_u8(idx));
uint8x8_t hi = vtbl2_u8(split, vget_high_u8(idx));
return vcombine_u8(lo, hi);
#elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE) #elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE)
return vec_and(vec_perm(t, t, idx), vec_cmplt(idx, vec_splats(HEDLEY_STATIC_CAST(unsigned char, 16)))); return vec_and(vec_perm(t, t, idx), vec_cmplt(idx, vec_splats(HEDLEY_STATIC_CAST(unsigned char, 16))));
#else #else
...@@ -292,6 +324,12 @@ simde_uint8x16_t ...@@ -292,6 +324,12 @@ simde_uint8x16_t
simde_vqtbl2q_u8(simde_uint8x16x2_t t, simde_uint8x16_t idx) { simde_vqtbl2q_u8(simde_uint8x16x2_t t, simde_uint8x16_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbl2q_u8(t, idx); return vqtbl2q_u8(t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8x4_t split;
simde_memcpy(&split, &t, sizeof(split));
uint8x8_t lo = vtbl4_u8(split, vget_low_u8(idx));
uint8x8_t hi = vtbl4_u8(split, vget_high_u8(idx));
return vcombine_u8(lo, hi);
#elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE) #elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE)
return vec_and(vec_perm(t.val[0], t.val[1], idx), return vec_and(vec_perm(t.val[0], t.val[1], idx),
vec_cmplt(idx, vec_splats(HEDLEY_STATIC_CAST(unsigned char, 32)))); vec_cmplt(idx, vec_splats(HEDLEY_STATIC_CAST(unsigned char, 32))));
...@@ -345,6 +383,17 @@ simde_uint8x16_t ...@@ -345,6 +383,17 @@ simde_uint8x16_t
simde_vqtbl3q_u8(simde_uint8x16x3_t t, simde_uint8x16_t idx) { simde_vqtbl3q_u8(simde_uint8x16x3_t t, simde_uint8x16_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbl3q_u8(t, idx); return vqtbl3q_u8(t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x16_t idx_hi = vsubq_u8(idx, vdupq_n_u8(32));
uint8x8x4_t split_lo;
uint8x8x2_t split_hi;
simde_memcpy(&split_lo, &t.val[0], sizeof(split_lo));
simde_memcpy(&split_hi, &t.val[2], sizeof(split_hi));
uint8x8_t hi_lo = vtbl2_u8(split_hi, vget_low_u8(idx_hi));
uint8x8_t hi_hi = vtbl2_u8(split_hi, vget_high_u8(idx_hi));
uint8x8_t lo = vtbx4_u8(hi_lo, split_lo, vget_low_u8(idx));
uint8x8_t hi = vtbx4_u8(hi_hi, split_lo, vget_high_u8(idx));
return vcombine_u8(lo, hi);
#elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE) #elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE)
SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_01 = vec_perm(t.val[0], t.val[1], idx); SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_01 = vec_perm(t.val[0], t.val[1], idx);
SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_2 = vec_perm(t.val[2], t.val[2], idx); SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_2 = vec_perm(t.val[2], t.val[2], idx);
...@@ -404,6 +453,17 @@ simde_uint8x16_t ...@@ -404,6 +453,17 @@ simde_uint8x16_t
simde_vqtbl4q_u8(simde_uint8x16x4_t t, simde_uint8x16_t idx) { simde_vqtbl4q_u8(simde_uint8x16x4_t t, simde_uint8x16_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbl4q_u8(t, idx); return vqtbl4q_u8(t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x16_t idx_hi = vsubq_u8(idx, vdupq_n_u8(32));
uint8x8x4_t split_lo;
uint8x8x4_t split_hi;
simde_memcpy(&split_lo, &t.val[0], sizeof(split_lo));
simde_memcpy(&split_hi, &t.val[2], sizeof(split_hi));
uint8x8_t lo_lo = vtbl4_u8(split_lo, vget_low_u8(idx));
uint8x8_t lo_hi = vtbl4_u8(split_lo, vget_high_u8(idx));
uint8x8_t lo = vtbx4_u8(lo_lo, split_hi, vget_low_u8(idx_hi));
uint8x8_t hi = vtbx4_u8(lo_hi, split_hi, vget_high_u8(idx_hi));
return vcombine_u8(lo, hi);
#elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE) #elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE)
SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_01 = vec_perm(t.val[0], t.val[1], idx); SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_01 = vec_perm(t.val[0], t.val[1], idx);
SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_23 = vec_perm(t.val[2], t.val[3], idx); SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_23 = vec_perm(t.val[2], t.val[3], idx);
......
arm/neon/qtbx.h
View file @ c5de4d09
...@@ -40,6 +40,10 @@ simde_uint8x8_t ...@@ -40,6 +40,10 @@ simde_uint8x8_t
simde_vqtbx1_u8(simde_uint8x8_t a, simde_uint8x16_t t, simde_uint8x8_t idx) { simde_vqtbx1_u8(simde_uint8x8_t a, simde_uint8x16_t t, simde_uint8x8_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbx1_u8(a, t, idx); return vqtbx1_u8(a, t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8x2_t split;
simde_memcpy(&split, &t, sizeof(split));
return vtbx2_u8(a, split, idx);
#else #else
simde_uint8x16_private t_ = simde_uint8x16_to_private(t); simde_uint8x16_private t_ = simde_uint8x16_to_private(t);
simde_uint8x8_private simde_uint8x8_private
...@@ -89,6 +93,10 @@ simde_uint8x8_t ...@@ -89,6 +93,10 @@ simde_uint8x8_t
simde_vqtbx2_u8(simde_uint8x8_t a, simde_uint8x16x2_t t, simde_uint8x8_t idx) { simde_vqtbx2_u8(simde_uint8x8_t a, simde_uint8x16x2_t t, simde_uint8x8_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbx2_u8(a, t, idx); return vqtbx2_u8(a, t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8x4_t split;
simde_memcpy(&split, &t, sizeof(split));
return vtbx4_u8(a, split, idx);
#else #else
simde_uint8x16_private t_[2] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]) }; simde_uint8x16_private t_[2] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]) };
simde_uint8x8_private simde_uint8x8_private
...@@ -140,6 +148,14 @@ simde_uint8x8_t ...@@ -140,6 +148,14 @@ simde_uint8x8_t
simde_vqtbx3_u8(simde_uint8x8_t a, simde_uint8x16x3_t t, simde_uint8x8_t idx) { simde_vqtbx3_u8(simde_uint8x8_t a, simde_uint8x16x3_t t, simde_uint8x8_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbx3_u8(a, t, idx); return vqtbx3_u8(a, t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8_t idx_hi = vsub_u8(idx, vdup_n_u8(32));
uint8x8x4_t split_lo;
uint8x8x2_t split_hi;
simde_memcpy(&split_lo, &t.val[0], sizeof(split_lo));
simde_memcpy(&split_hi, &t.val[2], sizeof(split_hi));
uint8x8_t hi = vtbx2_u8(a, split_hi, idx_hi);
return vtbx4_u8(hi, split_lo, idx);
#else #else
simde_uint8x16_private t_[3] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]), simde_uint8x16_to_private(t.val[2]) }; simde_uint8x16_private t_[3] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]), simde_uint8x16_to_private(t.val[2]) };
simde_uint8x8_private simde_uint8x8_private
...@@ -193,6 +209,14 @@ simde_uint8x8_t ...@@ -193,6 +209,14 @@ simde_uint8x8_t
simde_vqtbx4_u8(simde_uint8x8_t a, simde_uint8x16x4_t t, simde_uint8x8_t idx) { simde_vqtbx4_u8(simde_uint8x8_t a, simde_uint8x16x4_t t, simde_uint8x8_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbx4_u8(a, t, idx); return vqtbx4_u8(a, t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8_t idx_hi = vsub_u8(idx, vdup_n_u8(32));
uint8x8x4_t split_lo;
uint8x8x4_t split_hi;
simde_memcpy(&split_lo, &t.val[0], sizeof(split_lo));
simde_memcpy(&split_hi, &t.val[2], sizeof(split_hi));
uint8x8_t lo = vtbx4_u8(a, split_lo, idx);
return vtbx4_u8(lo, split_hi, idx_hi);
#else #else
simde_uint8x16_private t_[4] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]), simde_uint8x16_to_private(t.val[2]), simde_uint8x16_to_private(t.val[3]) }; simde_uint8x16_private t_[4] = { simde_uint8x16_to_private(t.val[0]), simde_uint8x16_to_private(t.val[1]), simde_uint8x16_to_private(t.val[2]), simde_uint8x16_to_private(t.val[3]) };
simde_uint8x8_private simde_uint8x8_private
...@@ -251,6 +275,12 @@ simde_uint8x16_t ...@@ -251,6 +275,12 @@ simde_uint8x16_t
simde_vqtbx1q_u8(simde_uint8x16_t a, simde_uint8x16_t t, simde_uint8x16_t idx) { simde_vqtbx1q_u8(simde_uint8x16_t a, simde_uint8x16_t t, simde_uint8x16_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbx1q_u8(a, t, idx); return vqtbx1q_u8(a, t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8x2_t split;
simde_memcpy(&split, &t, sizeof(split));
uint8x8_t lo = vtbx2_u8(vget_low_u8(a), split, vget_low_u8(idx));
uint8x8_t hi = vtbx2_u8(vget_high_u8(a), split, vget_high_u8(idx));
return vcombine_u8(lo, hi);
#elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE) #elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE)
return vec_sel(a, return vec_sel(a,
vec_perm(t, t, idx), vec_perm(t, t, idx),
...@@ -304,6 +334,12 @@ simde_uint8x16_t ...@@ -304,6 +334,12 @@ simde_uint8x16_t
simde_vqtbx2q_u8(simde_uint8x16_t a, simde_uint8x16x2_t t, simde_uint8x16_t idx) { simde_vqtbx2q_u8(simde_uint8x16_t a, simde_uint8x16x2_t t, simde_uint8x16_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbx2q_u8(a, t, idx); return vqtbx2q_u8(a, t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x8x4_t split;
simde_memcpy(&split, &t, sizeof(split));
uint8x8_t lo = vtbx4_u8(vget_low_u8(a), split, vget_low_u8(idx));
uint8x8_t hi = vtbx4_u8(vget_high_u8(a), split, vget_high_u8(idx));
return vcombine_u8(lo, hi);
#elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE) #elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE)
return vec_sel(a, vec_perm(t.val[0], t.val[1], idx), return vec_sel(a, vec_perm(t.val[0], t.val[1], idx),
vec_cmplt(idx, vec_splats(HEDLEY_STATIC_CAST(unsigned char, 32)))); vec_cmplt(idx, vec_splats(HEDLEY_STATIC_CAST(unsigned char, 32))));
...@@ -360,6 +396,17 @@ simde_uint8x16_t ...@@ -360,6 +396,17 @@ simde_uint8x16_t
simde_vqtbx3q_u8(simde_uint8x16_t a, simde_uint8x16x3_t t, simde_uint8x16_t idx) { simde_vqtbx3q_u8(simde_uint8x16_t a, simde_uint8x16x3_t t, simde_uint8x16_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbx3q_u8(a, t, idx); return vqtbx3q_u8(a, t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x16_t idx_hi = vsubq_u8(idx, vdupq_n_u8(32));
uint8x8x4_t split_lo;
uint8x8x2_t split_hi;
simde_memcpy(&split_lo, &t.val[0], sizeof(split_lo));
simde_memcpy(&split_hi, &t.val[2], sizeof(split_hi));
uint8x8_t hi_lo = vtbx2_u8(vget_low_u8(a), split_hi, vget_low_u8(idx_hi));
uint8x8_t hi_hi = vtbx2_u8(vget_high_u8(a), split_hi, vget_high_u8(idx_hi));
uint8x8_t lo_lo = vtbx4_u8(hi_lo, split_lo, vget_low_u8(idx));
uint8x8_t lo_hi = vtbx4_u8(hi_hi, split_lo, vget_high_u8(idx));
return vcombine_u8(lo_lo, lo_hi);
#elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE) #elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE)
SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_01 = vec_perm(t.val[0], t.val[1], idx); SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_01 = vec_perm(t.val[0], t.val[1], idx);
SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_2 = vec_perm(t.val[2], t.val[2], idx); SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_2 = vec_perm(t.val[2], t.val[2], idx);
...@@ -422,6 +469,17 @@ simde_uint8x16_t ...@@ -422,6 +469,17 @@ simde_uint8x16_t
simde_vqtbx4q_u8(simde_uint8x16_t a, simde_uint8x16x4_t t, simde_uint8x16_t idx) { simde_vqtbx4q_u8(simde_uint8x16_t a, simde_uint8x16x4_t t, simde_uint8x16_t idx) {
#if defined(SIMDE_ARM_NEON_A64V8_NATIVE) #if defined(SIMDE_ARM_NEON_A64V8_NATIVE)
return vqtbx4q_u8(a, t, idx); return vqtbx4q_u8(a, t, idx);
#elif defined(SIMDE_ARM_NEON_A32V7_NATIVE)
uint8x16_t idx_hi = vsubq_u8(idx, vdupq_n_u8(32));
uint8x8x4_t split_lo;
uint8x8x4_t split_hi;
simde_memcpy(&split_lo, &t.val[0], sizeof(split_lo));
simde_memcpy(&split_hi, &t.val[2], sizeof(split_hi));
uint8x8_t lo_lo = vtbx4_u8(vget_low_u8(a), split_lo, vget_low_u8(idx));
uint8x8_t lo_hi = vtbx4_u8(vget_high_u8(a), split_lo, vget_high_u8(idx));
uint8x8_t lo = vtbx4_u8(lo_lo, split_hi, vget_low_u8(idx_hi));
uint8x8_t hi = vtbx4_u8(lo_hi, split_hi, vget_high_u8(idx_hi));
return vcombine_u8(lo, hi);
#elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE) #elif defined(SIMDE_POWER_ALTIVEC_P6_NATIVE)
SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_01 = vec_perm(t.val[0], t.val[1], idx); SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_01 = vec_perm(t.val[0], t.val[1], idx);
SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_23 = vec_perm(t.val[2], t.val[3], idx); SIMDE_POWER_ALTIVEC_VECTOR(unsigned char) r_23 = vec_perm(t.val[2], t.val[3], idx);
......
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