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x64: Migrate iadd_pairwise to ISLE (#4718)

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* Add a test for iadd_pairwise with swiden input

* Implement iadd_pairwise for swiden_{low,high} input

* Add a test case for iadd_pairwise with uwiden input

* Implement iadd_pairwise with uwiden
This commit is contained in:
Trevor Elliott
2022-08-16 12:21:06 -07:00
committed by GitHub
parent bc8e36a6af
commit fbfceaec98
5 changed files with 172 additions and 160 deletions
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37
cranelift/codegen/src/isa/x64/lower.isle
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@@ -3189,3 +3189,40 @@
;; Add this second set of converted lanes to the original to properly handle
;; values greater than max signed int.
(x64_paddd tmp1 dst)))
;; Rules for `iadd_pairwise` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(rule (lower
(has_type $I16X8 (iadd_pairwise
(swiden_low val @ (value_type $I8X16))
(swiden_high val))))
(let ((mul_const Xmm (x64_xmm_load_const $I8X16 (iadd_pairwise_mul_const_16))))
(x64_pmaddubsw mul_const val)))
(rule (lower
(has_type $I32X4 (iadd_pairwise
(swiden_low val @ (value_type $I16X8))
(swiden_high val))))
(let ((mul_const Xmm (x64_xmm_load_const $I16X8 (iadd_pairwise_mul_const_32))))
(x64_pmaddwd val mul_const)))
(rule (lower
(has_type $I16X8 (iadd_pairwise
(uwiden_low val @ (value_type $I8X16))
(uwiden_high val))))
(let ((mul_const Xmm (x64_xmm_load_const $I8X16 (iadd_pairwise_mul_const_16))))
(x64_pmaddubsw val mul_const)))
(rule (lower
(has_type $I32X4 (iadd_pairwise
(uwiden_low val @ (value_type $I16X8))
(uwiden_high val))))
(let ((xor_const Xmm (x64_xmm_load_const $I16X8 (iadd_pairwise_xor_const_32)))
(dst Xmm (x64_pxor val xor_const))
(madd_const Xmm (x64_xmm_load_const $I16X8 (iadd_pairwise_mul_const_32)))
(dst Xmm (x64_pmaddwd dst madd_const))
(addd_const Xmm (x64_xmm_load_const $I16X8 (iadd_pairwise_addd_const_32))))
(x64_paddd dst addd_const)))