Winch: v128 min, max, extmul and extadd
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I can grab this one. |
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FYI, there are a couple of conflicts. |
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rebased @saulecabrera |
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It seems that the list of tests that require AVX needs updating: https://github.com/bytecodealliance/wasmtime/actions/runs/13273954433/job/37059662498 |
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it looks good now, but I was unable to find the CI failure the previous time... |
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This PR implements another batch of SIMD instruction for winch x64 backend:
i8x16.max_ui16x8.max_ui32x4.max_ui8x16.max_si16x8.max_si32x4.max_si8x16.min_ui16x8.min_ui32x4.min_ui8x16.min_si16x8.min_si32x4.min_si16x8.extmul_low_i8x16_si16x8.extmul_high_i8x16_si16x8.extmul_low_i8x16_ui16x8.extmul_high_i8x16_ui32x4.extmul_low_i16x8_si32x4.extmul_high_i16x8_si32x4.extmul_low_i16x8_ui32x4.extmul_high_i16x8_ui64x2.extmul_low_i32x4_si64x2.extmul_high_i32x4_si64x2.extmul_low_i32x4_ui64x2.extmul_high_i32x4_ui16x8.extadd_pairwise_i8x16_si16x8.extadd_pairwise_i8x16_ui32x4.extadd_pairwise_i16x8_si32x4.extadd_pairwise_i16x8_uThe add-extend and mul-extend operation are implemented in terms of already existing primitive. This is because almost every single one of those wasm instruction resulted in a special sequence of x64 instruction. While the current implemention emits far from optimal code, it has the advantage of being straighforward. We can always specialize the implementations later.
#8093