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Add x86 SIMD instructions for min and max

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Only the I8, I16, and I32 versions are included since Cranelift lacks support for AVX.
This commit is contained in:
Andrew Brown
2019-10-25 10:12:35 -07:00
parent f053595748
commit 0ab5760fd7
5 changed files with 194 additions and 0 deletions
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41
cranelift/filetests/filetests/isa/x86/simd-comparison-run.clif
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@@ -66,3 +66,44 @@ ebb0:
return v8
}
; run
function %maxs_i8x16() -> b1 {
ebb0:
v0 = vconst.i8x16 [1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] ; 1 will be greater than -1 == 0xff with
; signed max
v1 = vconst.i8x16 [0xff 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1]
v2 = x86_pmaxs v0, v1
v8 = vall_true v2
return v8
}
; run
function %maxu_i16x8() -> b1 {
ebb0:
v0 = vconst.i16x8 [0 1 1 1 1 1 1 1]
v1 = vconst.i16x8 [-1 1 1 1 1 1 1 1] ; -1 == 0xff will be greater with unsigned max
v2 = x86_pmaxu v0, v1
v8 = vall_true v2
return v8
}
; run
function %mins_i32x4() -> b1 {
ebb0:
v0 = vconst.i32x4 [0 1 1 1]
v1 = vconst.i32x4 [-1 1 1 1] ; -1 == 0xff will be less with signed min
v2 = x86_pmins v0, v1
v8 = vall_true v2
return v8
}
; run
function %minu_i8x16() -> b1 {
ebb0:
v0 = vconst.i8x16 [1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] ; 1 < 2 with unsiged min
v1 = vconst.i8x16 [2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2]
v2 = x86_pminu v0, v1
v8 = vall_true v2
return v8
}
; run