edae6c0217
* x64: Add non-SSE4.1 lowerings of `pmov{s,z}x*`
This commit adds lowerings for a suite of sign/zero extension
instructions which don't require SSE4.1. Like before these lowerings are
based on LLVM's output.
This commit also deletes special casees for `i16x8.extmul_{low,high}_*`
since the output of the special case is the same as the default lowering
of all the component instructions used within as well.
* Remove SSE4.1 specialization of `uwiden_high`
LLVM prefers the `punpckh*`-based lowerings and at least according to
`llvm-mca` these are slightly better cycle-wise too.
31 lines
683 B
Plaintext
31 lines
683 B
Plaintext
test interpret
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test run
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target aarch64
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target s390x
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target x86_64 ssse3 has_sse41=false
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set enable_simd
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target x86_64
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target x86_64 sse41
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target x86_64 sse41 has_avx
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function %swidenlow_i8x16(i8x16) -> i16x8 {
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block0(v0: i8x16):
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v1 = swiden_low v0
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return v1
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}
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; run: %swidenlow_i8x16([1 -2 3 -4 5 -6 7 -8 9 -10 11 -12 13 -14 15 -16]) == [1 -2 3 -4 5 -6 7 -8]
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function %swidenlow_i16x8(i16x8) -> i32x4 {
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block0(v0: i16x8):
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v1 = swiden_low v0
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return v1
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}
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; run: %swidenlow_i16x8([1 -2 3 -4 5 -6 7 -8]) == [1 -2 3 -4]
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function %swidenlow_i32x4(i32x4) -> i64x2 {
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block0(v0: i32x4):
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v1 = swiden_low v0
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return v1
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}
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; run: %swidenlow_i32x4([1 -2 3 -4]) == [1 -2]
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