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arm wasm: add vst2_u8 translation to Wasm SIMD #1214

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Sep 10, 2024
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arm wasm: add vst2_u8 translation to Wasm SIMD #1214

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18 changes: 17 additions & 1 deletion simde/arm/neon/st2.h
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,7 @@
#if !defined(SIMDE_ARM_NEON_ST2_H)
#define SIMDE_ARM_NEON_ST2_H

#include "types.h"
#include "combine.h"
#include "zip.h"

HEDLEY_DIAGNOSTIC_PUSH
Expand Down Expand Up @@ -233,6 +233,22 @@ void
simde_vst2_u8(uint8_t *ptr, simde_uint8x8x2_t val) {
#if defined(SIMDE_ARM_NEON_A32V7_NATIVE)
vst2_u8(ptr, val);
#elif defined(SIMDE_WASM_SIMD128_NATIVE)
simde_uint8x16_private r0_;
simde_uint8x16_private ab_ = simde_uint8x16_to_private(simde_vcombine_u8(val.val[0], val.val[1]));

r0_.v128 = wasm_i8x16_shuffle(ab_.v128, ab_.v128,
0, 8,
1, 9,
2, 10,
3, 11,
4, 12,
5, 13,
6, 14,
7, 15
);

wasm_v128_store(ptr, r0_.v128);
#else
simde_uint8x8_private a_[2] = {simde_uint8x8_to_private(val.val[0]),
simde_uint8x8_to_private(val.val[1])};
Expand Down