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https://github.com/golang/go
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d09c6ac417
Updated multiple tests in test/codegen: math.go, mathbits.go, shift.go and slices.go to verify on ppc64/ppc64le as well Change-Id: Id88dd41569b7097819fb4d451b615f69cf7f7a94 Reviewed-on: https://go-review.googlesource.com/c/go/+/412115 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Archana Ravindar <aravind5@in.ibm.com> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Paul Murphy <murp@ibm.com> Reviewed-by: Ian Lance Taylor <iant@google.com>
262 lines
6.2 KiB
Go
262 lines
6.2 KiB
Go
// asmcheck
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package codegen
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import "math"
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var sink64 [8]float64
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func approx(x float64) {
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// amd64/v2:-".*x86HasSSE41" amd64/v3:-".*x86HasSSE41"
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// amd64:"ROUNDSD\t[$]2"
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// s390x:"FIDBR\t[$]6"
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// arm64:"FRINTPD"
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// ppc64:"FRIP"
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// ppc64le:"FRIP"
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// wasm:"F64Ceil"
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sink64[0] = math.Ceil(x)
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// amd64/v2:-".*x86HasSSE41" amd64/v3:-".*x86HasSSE41"
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// amd64:"ROUNDSD\t[$]1"
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// s390x:"FIDBR\t[$]7"
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// arm64:"FRINTMD"
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// ppc64:"FRIM"
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// ppc64le:"FRIM"
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// wasm:"F64Floor"
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sink64[1] = math.Floor(x)
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// s390x:"FIDBR\t[$]1"
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// arm64:"FRINTAD"
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// ppc64:"FRIN"
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// ppc64le:"FRIN"
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sink64[2] = math.Round(x)
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// amd64/v2:-".*x86HasSSE41" amd64/v3:-".*x86HasSSE41"
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// amd64:"ROUNDSD\t[$]3"
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// s390x:"FIDBR\t[$]5"
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// arm64:"FRINTZD"
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// ppc64:"FRIZ"
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// ppc64le:"FRIZ"
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// wasm:"F64Trunc"
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sink64[3] = math.Trunc(x)
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// amd64/v2:-".*x86HasSSE41" amd64/v3:-".*x86HasSSE41"
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// amd64:"ROUNDSD\t[$]0"
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// s390x:"FIDBR\t[$]4"
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// arm64:"FRINTND"
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// wasm:"F64Nearest"
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sink64[4] = math.RoundToEven(x)
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}
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func sqrt(x float64) float64 {
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// amd64:"SQRTSD"
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// 386/sse2:"SQRTSD" 386/softfloat:-"SQRTD"
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// arm64:"FSQRTD"
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// arm/7:"SQRTD"
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// mips/hardfloat:"SQRTD" mips/softfloat:-"SQRTD"
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// mips64/hardfloat:"SQRTD" mips64/softfloat:-"SQRTD"
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// wasm:"F64Sqrt"
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// ppc64le:"FSQRT"
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// ppc64:"FSQRT"
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return math.Sqrt(x)
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}
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func sqrt32(x float32) float32 {
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// amd64:"SQRTSS"
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// 386/sse2:"SQRTSS" 386/softfloat:-"SQRTS"
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// arm64:"FSQRTS"
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// arm/7:"SQRTF"
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// mips/hardfloat:"SQRTF" mips/softfloat:-"SQRTF"
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// mips64/hardfloat:"SQRTF" mips64/softfloat:-"SQRTF"
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// wasm:"F32Sqrt"
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// ppc64le:"FSQRTS"
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// ppc64:"FSQRTS"
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return float32(math.Sqrt(float64(x)))
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}
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// Check that it's using integer registers
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func abs(x, y float64) {
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// amd64:"BTRQ\t[$]63"
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// arm64:"FABSD\t"
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// s390x:"LPDFR\t",-"MOVD\t" (no integer load/store)
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// ppc64:"FABS\t"
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// ppc64le:"FABS\t"
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// riscv64:"FABSD\t"
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// wasm:"F64Abs"
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// arm/6:"ABSD\t"
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sink64[0] = math.Abs(x)
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// amd64:"BTRQ\t[$]63","PXOR" (TODO: this should be BTSQ)
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// s390x:"LNDFR\t",-"MOVD\t" (no integer load/store)
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// ppc64:"FNABS\t"
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// ppc64le:"FNABS\t"
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sink64[1] = -math.Abs(y)
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}
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// Check that it's using integer registers
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func abs32(x float32) float32 {
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// s390x:"LPDFR",-"LDEBR",-"LEDBR" (no float64 conversion)
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return float32(math.Abs(float64(x)))
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}
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// Check that it's using integer registers
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func copysign(a, b, c float64) {
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// amd64:"BTRQ\t[$]63","ANDQ","ORQ"
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// s390x:"CPSDR",-"MOVD" (no integer load/store)
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// ppc64:"FCPSGN"
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// ppc64le:"FCPSGN"
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// riscv64:"FSGNJD"
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// wasm:"F64Copysign"
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sink64[0] = math.Copysign(a, b)
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// amd64:"BTSQ\t[$]63"
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// s390x:"LNDFR\t",-"MOVD\t" (no integer load/store)
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// ppc64:"FCPSGN"
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// ppc64le:"FCPSGN"
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// riscv64:"FSGNJD"
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// arm64:"ORR", -"AND"
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sink64[1] = math.Copysign(c, -1)
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// Like math.Copysign(c, -1), but with integer operations. Useful
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// for platforms that have a copysign opcode to see if it's detected.
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// s390x:"LNDFR\t",-"MOVD\t" (no integer load/store)
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sink64[2] = math.Float64frombits(math.Float64bits(a) | 1<<63)
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// amd64:"ANDQ","ORQ"
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// s390x:"CPSDR\t",-"MOVD\t" (no integer load/store)
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// ppc64:"FCPSGN"
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// ppc64le:"FCPSGN"
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// riscv64:"FSGNJD"
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sink64[3] = math.Copysign(-1, c)
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}
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func fma(x, y, z float64) float64 {
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// amd64/v3:-".*x86HasFMA"
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// amd64:"VFMADD231SD"
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// arm/6:"FMULAD"
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// arm64:"FMADDD"
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// s390x:"FMADD"
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// ppc64:"FMADD"
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// ppc64le:"FMADD"
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// riscv64:"FMADDD"
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return math.FMA(x, y, z)
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}
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func fms(x, y, z float64) float64 {
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// riscv64:"FMSUBD"
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return math.FMA(x, y, -z)
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}
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func fnma(x, y, z float64) float64 {
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// riscv64:"FNMADDD"
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return math.FMA(-x, y, z)
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}
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func fnms(x, y, z float64) float64 {
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// riscv64:"FNMSUBD"
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return math.FMA(x, -y, -z)
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}
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func fromFloat64(f64 float64) uint64 {
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// amd64:"MOVQ\tX.*, [^X].*"
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// arm64:"FMOVD\tF.*, R.*"
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// ppc64:"MFVSRD"
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// ppc64le:"MFVSRD"
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return math.Float64bits(f64+1) + 1
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}
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func fromFloat32(f32 float32) uint32 {
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// amd64:"MOVL\tX.*, [^X].*"
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// arm64:"FMOVS\tF.*, R.*"
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return math.Float32bits(f32+1) + 1
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}
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func toFloat64(u64 uint64) float64 {
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// amd64:"MOVQ\t[^X].*, X.*"
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// arm64:"FMOVD\tR.*, F.*"
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// ppc64:"MTVSRD"
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// ppc64le:"MTVSRD"
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return math.Float64frombits(u64+1) + 1
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}
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func toFloat32(u32 uint32) float32 {
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// amd64:"MOVL\t[^X].*, X.*"
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// arm64:"FMOVS\tR.*, F.*"
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return math.Float32frombits(u32+1) + 1
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}
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// Test that comparisons with constants converted to float
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// are evaluated at compile-time
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func constantCheck64() bool {
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// amd64:"(MOVB\t[$]0)|(XORL\t[A-Z][A-Z0-9]+, [A-Z][A-Z0-9]+)",-"FCMP",-"MOVB\t[$]1"
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// s390x:"MOV(B|BZ|D)\t[$]0,",-"FCMPU",-"MOV(B|BZ|D)\t[$]1,"
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return 0.5 == float64(uint32(1)) || 1.5 > float64(uint64(1<<63))
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}
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func constantCheck32() bool {
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// amd64:"MOV(B|L)\t[$]1",-"FCMP",-"MOV(B|L)\t[$]0"
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// s390x:"MOV(B|BZ|D)\t[$]1,",-"FCMPU",-"MOV(B|BZ|D)\t[$]0,"
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return float32(0.5) <= float32(int64(1)) && float32(1.5) >= float32(int32(-1<<31))
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}
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// Test that integer constants are converted to floating point constants
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// at compile-time
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func constantConvert32(x float32) float32 {
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// amd64:"MOVSS\t[$]f32.3f800000\\(SB\\)"
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// s390x:"FMOVS\t[$]f32.3f800000\\(SB\\)"
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// ppc64:"FMOVS\t[$]f32.3f800000\\(SB\\)"
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// ppc64le:"FMOVS\t[$]f32.3f800000\\(SB\\)"
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// arm64:"FMOVS\t[$]\\(1.0\\)"
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if x > math.Float32frombits(0x3f800000) {
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return -x
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}
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return x
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}
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func constantConvertInt32(x uint32) uint32 {
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// amd64:-"MOVSS"
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// s390x:-"FMOVS"
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// ppc64:-"FMOVS"
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// ppc64le:-"FMOVS"
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// arm64:-"FMOVS"
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if x > math.Float32bits(1) {
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return -x
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}
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return x
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}
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func nanGenerate64() float64 {
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// Test to make sure we don't generate a NaN while constant propagating.
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// See issue 36400.
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zero := 0.0
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// amd64:-"DIVSD"
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inf := 1 / zero // +inf. We can constant propagate this one.
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negone := -1.0
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// amd64:"DIVSD"
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z0 := zero / zero
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// amd64:"MULSD"
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z1 := zero * inf
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// amd64:"SQRTSD"
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z2 := math.Sqrt(negone)
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return z0 + z1 + z2
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}
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func nanGenerate32() float32 {
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zero := float32(0.0)
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// amd64:-"DIVSS"
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inf := 1 / zero // +inf. We can constant propagate this one.
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// amd64:"DIVSS"
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z0 := zero / zero
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// amd64:"MULSS"
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z1 := zero * inf
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return z0 + z1
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}
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