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test/codegen: port floats tests to codegen
And delete them from asm_test. Change-Id: Ibdaca3496eefc73c731b511ddb9636a1f3dff68c Reviewed-on: https://go-review.googlesource.com/100915 Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Alberto Donizetti
parent
546bab8c29
commit
cceee685be
3 changed files with 75 additions and 96 deletions
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@ -410,35 +410,6 @@ var linuxAMD64Tests = []*asmTest{
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}`,
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pos: []string{"\tADDQ\t[A-Z]"},
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},
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// Floating-point strength reduction
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{
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fn: `
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func f60(f float64) float64 {
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return f * 2.0
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}`,
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pos: []string{"\tADDSD\t"},
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},
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{
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fn: `
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func f62(f float64) float64 {
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return f / 16.0
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}`,
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pos: []string{"\tMULSD\t"},
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},
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{
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fn: `
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func f63(f float64) float64 {
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return f / 0.125
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}`,
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pos: []string{"\tMULSD\t"},
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},
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{
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fn: `
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func f64(f float64) float64 {
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return f / 0.5
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}`,
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pos: []string{"\tADDSD\t"},
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},
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// Check that compare to constant string uses 2/4/8 byte compares
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{
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fn: `
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@ -634,39 +605,6 @@ var linux386Tests = []*asmTest{
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}
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var linuxS390XTests = []*asmTest{
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// Fused multiply-add/sub instructions.
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{
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fn: `
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func f14(x, y, z float64) float64 {
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return x * y + z
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}
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`,
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pos: []string{"\tFMADD\t"},
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},
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{
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fn: `
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func f15(x, y, z float64) float64 {
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return x * y - z
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}
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`,
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pos: []string{"\tFMSUB\t"},
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},
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{
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fn: `
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func f16(x, y, z float32) float32 {
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return x * y + z
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}
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`,
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pos: []string{"\tFMADDS\t"},
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},
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{
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fn: `
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func f17(x, y, z float32) float32 {
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return x * y - z
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}
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`,
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pos: []string{"\tFMSUBS\t"},
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},
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{
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// check that stack store is optimized away
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fn: `
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@ -1113,39 +1051,6 @@ var linuxMIPS64Tests = []*asmTest{
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}
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var linuxPPC64LETests = []*asmTest{
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// Fused multiply-add/sub instructions.
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{
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fn: `
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func f0(x, y, z float64) float64 {
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return x * y + z
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}
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`,
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pos: []string{"\tFMADD\t"},
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},
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{
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fn: `
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func f1(x, y, z float64) float64 {
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return x * y - z
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}
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`,
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pos: []string{"\tFMSUB\t"},
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},
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{
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fn: `
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func f2(x, y, z float32) float32 {
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return x * y + z
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}
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`,
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pos: []string{"\tFMADDS\t"},
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},
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{
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fn: `
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func f3(x, y, z float32) float32 {
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return x * y - z
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}
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`,
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pos: []string{"\tFMSUBS\t"},
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},
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{
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// check that stack store is optimized away
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fn: `
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@ -7,7 +7,8 @@
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package codegen
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// This file contains codegen tests related to arithmetic
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// simplifications/optimizations.
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// simplifications and optimizations on integer types.
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// For codegen tests on float types, see floats.go.
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// -------------------- //
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// Multiplication //
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73
test/codegen/floats.go
Normal file
73
test/codegen/floats.go
Normal file
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@ -0,0 +1,73 @@
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// 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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// This file contains codegen tests related to arithmetic
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// simplifications and optimizations on float types.
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// For codegen tests on integer types, see arithmetic.go.
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// --------------------- //
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// Strength-reduce //
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// --------------------- //
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func Mul2(f float64) float64 {
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// 386:"ADDSD",-"MULSD"
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// amd64:"ADDSD",-"MULSD"
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// arm:"ADDD",-"MULD"
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// arm64:"FADDD",-"FMULD"
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return f * 2.0
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}
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func DivPow2(f1, f2, f3 float64) (float64, float64, float64) {
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// 386:"MULSD",-"DIVSD"
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// amd64:"MULSD",-"DIVSD"
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// arm:"MULD",-"DIVD"
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// arm64:"FMULD",-"FDIVD"
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x := f1 / 16.0
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// 386:"MULSD",-"DIVSD"
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// amd64:"MULSD",-"DIVSD"
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// arm:"MULD",-"DIVD"
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// arm64:"FMULD",-"FDIVD"
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y := f2 / 0.125
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// 386:"ADDSD",-"DIVSD",-"MULSD"
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// amd64:"ADDSD",-"DIVSD",-"MULSD"
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// arm:"ADDD",-"MULD",-"DIVD"
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// arm64:"FADDD",-"FMULD",-"FDIVD"
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z := f3 / 0.5
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return x, y, z
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}
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// ----------- //
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// Fused //
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// ----------- //
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func FusedAdd32(x, y, z float32) float32 {
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// s390x:"FMADDS\t"
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// ppc64le:"FMADDS\t"
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return x*y + z
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}
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func FusedSub32(x, y, z float32) float32 {
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// s390x:"FMSUBS\t"
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// ppc64le:"FMSUBS\t"
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return x*y - z
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}
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func FusedAdd64(x, y, z float64) float64 {
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// s390x:"FMADD\t"
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// ppc64le:"FMADD\t"
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return x*y + z
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}
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func FusedSub64(x, y, z float64) float64 {
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// s390x:"FMSUB\t"
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// ppc64le:"FMSUB\t"
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return x*y - z
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}
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