func main() { // bail if sse2 is not supported if !simd.SSE2() { fmt.Println("SSE2 not available") return } count := 0 errors := 0 rand.Seed(42) for i := -63; i <= 63; i++ { a := int(0) if i < 0 { a = -1 << uint(-i) } else { a = 1<<uint(i) - 1 } for j := -63; j <= 63; j++ { count++ b := int(0) if j < 0 { b = -1 << uint(-j) } else { b = 1<<uint(j) - 1 } var xF64x2 simd.F64x2 var yF64x2 simd.F64x2 var xM128d simd.M128d var yM128d simd.M128d for idx := 0; idx < 16; idx++ { abs_a := a if abs_a == math.MinInt64 || abs_a == 0 { abs_a = 64 } if abs_a < 0 { abs_a = -abs_a } abs_b := b if abs_b == math.MinInt64 || abs_b == 0 { abs_b = 64 } if abs_b < 0 { abs_b = -abs_b } if idx < 2 { xF64x2[idx] = rand.ExpFloat64() yF64x2[idx] = rand.ExpFloat64() xM128d[idx] = xF64x2[idx] yM128d[idx] = yF64x2[idx] } } if addpd(xM128d, yM128d) != simd.M128d(simd.AddF64x2(xF64x2, yF64x2)) { fmt.Printf("addm128d(%v, %v)\n", xF64x2, yF64x2) fmt.Println("x:", xF64x2) fmt.Println("y:", yF64x2) fmt.Println("s:", addpd(xM128d, yM128d)) fmt.Println(" :", simd.AddF64x2(xF64x2, yF64x2)) errors++ } } } fmt.Printf("Done, errors: %d\n", errors) }
func TestSSE2(t *testing.T) { // bail if sse2 is not supported if !simd.SSE2() { t.Log("Skipped - SSE2 not available") return } count := 0 rand.Seed(42) for i := -63; i <= 63; i++ { a := int(0) if i < 0 { a = -1 << uint(-i) } else { a = 1<<uint(i) - 1 } for j := -63; j <= 63; j++ { count++ b := int(0) if j < 0 { b = -1 << uint(-j) } else { b = 1<<uint(j) - 1 } var xF64x2 simd.F64x2 var yF64x2 simd.F64x2 var xM128d simd.M128d var yM128d simd.M128d for idx := 0; idx < 16; idx++ { abs_a := a if abs_a == math.MinInt64 || abs_a == 0 { abs_a = 64 } if abs_a < 0 { abs_a = -abs_a } abs_b := b if abs_b == math.MinInt64 || abs_b == 0 { abs_b = 64 } if abs_b < 0 { abs_b = -abs_b } if idx < 2 { xF64x2[idx] = rand.ExpFloat64() yF64x2[idx] = rand.ExpFloat64() xM128d[idx] = xF64x2[idx] yM128d[idx] = yF64x2[idx] } } if addpd(xM128d, yM128d) != simd.M128d(simd.AddF64x2(xF64x2, yF64x2)) { t.Errorf("addm128d(%v, %v)", xF64x2, yF64x2) t.Error("x:", xF64x2) t.Error("y:", yF64x2) t.Error("s:", addpd(xM128d, yM128d)) t.Error(" :", simd.AddF64x2(xF64x2, yF64x2)) } } } t.Log("Test Count:", count) }