ca7c849da3
Previously we used the i386 target, probably with all optional features disabled. However, the Pentium 4 has been released a _long_ time ago and it seems reasonable to me to take that as a minimum requirement. Upstream Go now also seems to move in this direction: https://github.com/golang/go/issues/40255 The main motivation for this is that there were floating point issues when running the tests for the math package: GOARCH=386 tinygo test math I haven't investigated what's the issue, but I strongly suspect it's caused by the weird x87 80-bit floating point format. This could perhaps be fixed in a different way (by setting the FPU precision to 64 bits) but I figured that just setting the minimum requirement to the Pentium 4 would probably be fine. If needed, we can respect the GO386 environment variable to support these very old CPUs. To support this newer CPU, I had to make sure that the stack is aligned to 16 bytes everywhere. This was not yet always the case.
256 строки
6,5 КиБ
Go
256 строки
6,5 КиБ
Go
package runtime
|
|
|
|
// This file redirects math stubs to their fallback implementation.
|
|
// TODO: use optimized versions if possible.
|
|
|
|
import (
|
|
_ "unsafe"
|
|
)
|
|
|
|
//go:linkname math_Asin math.Asin
|
|
func math_Asin(x float64) float64 { return math_asin(x) }
|
|
|
|
//go:linkname math_asin math.asin
|
|
func math_asin(x float64) float64
|
|
|
|
//go:linkname math_Asinh math.Asinh
|
|
func math_Asinh(x float64) float64 { return math_asinh(x) }
|
|
|
|
//go:linkname math_asinh math.asinh
|
|
func math_asinh(x float64) float64
|
|
|
|
//go:linkname math_Acos math.Acos
|
|
func math_Acos(x float64) float64 { return math_acos(x) }
|
|
|
|
//go:linkname math_acos math.acos
|
|
func math_acos(x float64) float64
|
|
|
|
//go:linkname math_Acosh math.Acosh
|
|
func math_Acosh(x float64) float64 { return math_acosh(x) }
|
|
|
|
//go:linkname math_acosh math.acosh
|
|
func math_acosh(x float64) float64
|
|
|
|
//go:linkname math_Atan math.Atan
|
|
func math_Atan(x float64) float64 { return math_atan(x) }
|
|
|
|
//go:linkname math_atan math.atan
|
|
func math_atan(x float64) float64
|
|
|
|
//go:linkname math_Atanh math.Atanh
|
|
func math_Atanh(x float64) float64 { return math_atanh(x) }
|
|
|
|
//go:linkname math_atanh math.atanh
|
|
func math_atanh(x float64) float64
|
|
|
|
//go:linkname math_Atan2 math.Atan2
|
|
func math_Atan2(y, x float64) float64 { return math_atan2(y, x) }
|
|
|
|
//go:linkname math_atan2 math.atan2
|
|
func math_atan2(y, x float64) float64
|
|
|
|
//go:linkname math_Cbrt math.Cbrt
|
|
func math_Cbrt(x float64) float64 { return math_cbrt(x) }
|
|
|
|
//go:linkname math_cbrt math.cbrt
|
|
func math_cbrt(x float64) float64
|
|
|
|
//go:linkname math_Ceil math.Ceil
|
|
func math_Ceil(x float64) float64 {
|
|
if GOARCH == "arm64" || GOARCH == "wasm" {
|
|
return llvm_ceil(x)
|
|
}
|
|
return math_ceil(x)
|
|
}
|
|
|
|
//export llvm.ceil.f64
|
|
func llvm_ceil(x float64) float64
|
|
|
|
//go:linkname math_ceil math.ceil
|
|
func math_ceil(x float64) float64
|
|
|
|
//go:linkname math_Cos math.Cos
|
|
func math_Cos(x float64) float64 { return math_cos(x) }
|
|
|
|
//go:linkname math_cos math.cos
|
|
func math_cos(x float64) float64
|
|
|
|
//go:linkname math_Cosh math.Cosh
|
|
func math_Cosh(x float64) float64 { return math_cosh(x) }
|
|
|
|
//go:linkname math_cosh math.cosh
|
|
func math_cosh(x float64) float64
|
|
|
|
//go:linkname math_Erf math.Erf
|
|
func math_Erf(x float64) float64 { return math_erf(x) }
|
|
|
|
//go:linkname math_erf math.erf
|
|
func math_erf(x float64) float64
|
|
|
|
//go:linkname math_Erfc math.Erfc
|
|
func math_Erfc(x float64) float64 { return math_erfc(x) }
|
|
|
|
//go:linkname math_erfc math.erfc
|
|
func math_erfc(x float64) float64
|
|
|
|
//go:linkname math_Exp math.Exp
|
|
func math_Exp(x float64) float64 { return math_exp(x) }
|
|
|
|
//go:linkname math_exp math.exp
|
|
func math_exp(x float64) float64
|
|
|
|
//go:linkname math_Expm1 math.Expm1
|
|
func math_Expm1(x float64) float64 { return math_expm1(x) }
|
|
|
|
//go:linkname math_expm1 math.expm1
|
|
func math_expm1(x float64) float64
|
|
|
|
//go:linkname math_Exp2 math.Exp2
|
|
func math_Exp2(x float64) float64 { return math_exp2(x) }
|
|
|
|
//go:linkname math_exp2 math.exp2
|
|
func math_exp2(x float64) float64
|
|
|
|
//go:linkname math_Floor math.Floor
|
|
func math_Floor(x float64) float64 {
|
|
if GOARCH == "arm64" || GOARCH == "wasm" {
|
|
return llvm_floor(x)
|
|
}
|
|
return math_floor(x)
|
|
}
|
|
|
|
//export llvm.floor.f64
|
|
func llvm_floor(x float64) float64
|
|
|
|
//go:linkname math_floor math.floor
|
|
func math_floor(x float64) float64
|
|
|
|
//go:linkname math_Frexp math.Frexp
|
|
func math_Frexp(x float64) (float64, int) { return math_frexp(x) }
|
|
|
|
//go:linkname math_frexp math.frexp
|
|
func math_frexp(x float64) (float64, int)
|
|
|
|
//go:linkname math_Hypot math.Hypot
|
|
func math_Hypot(p, q float64) float64 { return math_hypot(p, q) }
|
|
|
|
//go:linkname math_hypot math.hypot
|
|
func math_hypot(p, q float64) float64
|
|
|
|
//go:linkname math_Ldexp math.Ldexp
|
|
func math_Ldexp(frac float64, exp int) float64 { return math_ldexp(frac, exp) }
|
|
|
|
//go:linkname math_ldexp math.ldexp
|
|
func math_ldexp(frac float64, exp int) float64
|
|
|
|
//go:linkname math_Log math.Log
|
|
func math_Log(x float64) float64 { return math_log(x) }
|
|
|
|
//go:linkname math_log math.log
|
|
func math_log(x float64) float64
|
|
|
|
//go:linkname math_Log1p math.Log1p
|
|
func math_Log1p(x float64) float64 { return math_log1p(x) }
|
|
|
|
//go:linkname math_log1p math.log1p
|
|
func math_log1p(x float64) float64
|
|
|
|
//go:linkname math_Log10 math.Log10
|
|
func math_Log10(x float64) float64 { return math_log10(x) }
|
|
|
|
//go:linkname math_log10 math.log10
|
|
func math_log10(x float64) float64
|
|
|
|
//go:linkname math_Log2 math.Log2
|
|
func math_Log2(x float64) float64 { return math_log2(x) }
|
|
|
|
//go:linkname math_log2 math.log2
|
|
func math_log2(x float64) float64
|
|
|
|
//go:linkname math_Max math.Max
|
|
func math_Max(x, y float64) float64 { return math_max(x, y) }
|
|
|
|
//go:linkname math_max math.max
|
|
func math_max(x, y float64) float64
|
|
|
|
//go:linkname math_Min math.Min
|
|
func math_Min(x, y float64) float64 { return math_min(x, y) }
|
|
|
|
//go:linkname math_min math.min
|
|
func math_min(x, y float64) float64
|
|
|
|
//go:linkname math_Mod math.Mod
|
|
func math_Mod(x, y float64) float64 { return math_mod(x, y) }
|
|
|
|
//go:linkname math_mod math.mod
|
|
func math_mod(x, y float64) float64
|
|
|
|
//go:linkname math_Modf math.Modf
|
|
func math_Modf(x float64) (float64, float64) { return math_modf(x) }
|
|
|
|
//go:linkname math_modf math.modf
|
|
func math_modf(x float64) (float64, float64)
|
|
|
|
//go:linkname math_Pow math.Pow
|
|
func math_Pow(x, y float64) float64 { return math_pow(x, y) }
|
|
|
|
//go:linkname math_pow math.pow
|
|
func math_pow(x, y float64) float64
|
|
|
|
//go:linkname math_Remainder math.Remainder
|
|
func math_Remainder(x, y float64) float64 { return math_remainder(x, y) }
|
|
|
|
//go:linkname math_remainder math.remainder
|
|
func math_remainder(x, y float64) float64
|
|
|
|
//go:linkname math_Sin math.Sin
|
|
func math_Sin(x float64) float64 { return math_sin(x) }
|
|
|
|
//go:linkname math_sin math.sin
|
|
func math_sin(x float64) float64
|
|
|
|
//go:linkname math_Sinh math.Sinh
|
|
func math_Sinh(x float64) float64 { return math_sinh(x) }
|
|
|
|
//go:linkname math_sinh math.sinh
|
|
func math_sinh(x float64) float64
|
|
|
|
//go:linkname math_Sqrt math.Sqrt
|
|
func math_Sqrt(x float64) float64 {
|
|
if GOARCH == "386" || GOARCH == "amd64" || GOARCH == "wasm" {
|
|
return llvm_sqrt(x)
|
|
}
|
|
return math_sqrt(x)
|
|
}
|
|
|
|
//export llvm.sqrt.f64
|
|
func llvm_sqrt(x float64) float64
|
|
|
|
//go:linkname math_sqrt math.sqrt
|
|
func math_sqrt(x float64) float64
|
|
|
|
//go:linkname math_Tan math.Tan
|
|
func math_Tan(x float64) float64 { return math_tan(x) }
|
|
|
|
//go:linkname math_tan math.tan
|
|
func math_tan(x float64) float64
|
|
|
|
//go:linkname math_Tanh math.Tanh
|
|
func math_Tanh(x float64) float64 { return math_tanh(x) }
|
|
|
|
//go:linkname math_tanh math.tanh
|
|
func math_tanh(x float64) float64
|
|
|
|
//go:linkname math_Trunc math.Trunc
|
|
func math_Trunc(x float64) float64 {
|
|
if GOARCH == "arm64" || GOARCH == "wasm" {
|
|
return llvm_trunc(x)
|
|
}
|
|
return math_trunc(x)
|
|
}
|
|
|
|
//export llvm.trunc.f64
|
|
func llvm_trunc(x float64) float64
|
|
|
|
//go:linkname math_trunc math.trunc
|
|
func math_trunc(x float64) float64
|