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test: port bits.Len intrinsics tests to the new codegen harness

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This change move bits.Len* intrinsification tests to the new codegen
test harness, removing them from the old ssa_test file. Five different
test functions (one for each bit.Len function tested) was used, to
avoid possible unwanted interactions between multiple calls inside one
function.

Change-Id: Iffd5be55b58e88597fa30a562a28dacb01236d8b
Reviewed-on: https://go-review.googlesource.com/98156
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Giovanni Bajo <rasky@develer.com>
This commit is contained in:
Alberto Donizetti 2018-03-02 15:16:27 +01:00
parent 63bcabed49
commit c1806906d8
2 changed files with 53 additions and 202 deletions
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202
src/cmd/compile/internal/gc/asm_test.go
View file

@ -580,48 +580,6 @@ var linuxAMD64Tests = []*asmTest{
`,
pos: []string{"\tROLW\t\\$8,"},
},
{
fn: `
func f48(a uint64) int {
return bits.Len64(a)
}
`,
pos: []string{"\tBSRQ\t"},
},
{
fn: `
func f49(a uint32) int {
return bits.Len32(a)
}
`,
pos: []string{"\tBSRQ\t"},
},
{
fn: `
func f50(a uint16) int {
return bits.Len16(a)
}
`,
pos: []string{"\tBSRQ\t"},
},
/* see ssa.go
{
fn:`
func f51(a uint8) int {
return bits.Len8(a)
}
`,
pos:[]string{"\tBSRQ\t"},
},
*/
{
fn: `
func f52(a uint) int {
return bits.Len(a)
}
`,
pos: []string{"\tBSRQ\t"},
},
{
fn: `
func f53(a uint64) int {
@ -1364,46 +1322,6 @@ var linuxS390XTests = []*asmTest{
`,
pos: []string{"\tMOVWBR\t"},
},
{
fn: `
func f24(a uint64) int {
return bits.Len64(a)
}
`,
pos: []string{"\tFLOGR\t"},
},
{
fn: `
func f25(a uint32) int {
return bits.Len32(a)
}
`,
pos: []string{"\tFLOGR\t"},
},
{
fn: `
func f26(a uint16) int {
return bits.Len16(a)
}
`,
pos: []string{"\tFLOGR\t"},
},
{
fn: `
func f27(a uint8) int {
return bits.Len8(a)
}
`,
pos: []string{"\tFLOGR\t"},
},
{
fn: `
func f28(a uint) int {
return bits.Len(a)
}
`,
pos: []string{"\tFLOGR\t"},
},
{
fn: `
func f29(a uint64) int {
@ -1501,46 +1419,6 @@ var linuxARMTests = []*asmTest{
`,
pos: []string{"\tMOVW\tR[0-9]+@>25,"},
},
{
fn: `
func f3(a uint64) int {
return bits.Len64(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f4(a uint32) int {
return bits.Len32(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f5(a uint16) int {
return bits.Len16(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f6(a uint8) int {
return bits.Len8(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f7(a uint) int {
return bits.Len(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f8(a uint64) int {
@ -1715,46 +1593,6 @@ var linuxARM64Tests = []*asmTest{
`,
pos: []string{"\tREVW\t"},
},
{
fn: `
func f24(a uint64) int {
return bits.Len64(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f25(a uint32) int {
return bits.Len32(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f26(a uint16) int {
return bits.Len16(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f27(a uint8) int {
return bits.Len8(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f28(a uint) int {
return bits.Len(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f29(a uint64) int {
@ -2177,46 +2015,6 @@ var linuxARM64Tests = []*asmTest{
var linuxMIPSTests = []*asmTest{
// Intrinsic tests for math/bits
{
fn: `
func f0(a uint64) int {
return bits.Len64(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f1(a uint32) int {
return bits.Len32(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f2(a uint16) int {
return bits.Len16(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f3(a uint8) int {
return bits.Len8(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f4(a uint) int {
return bits.Len(a)
}
`,
pos: []string{"\tCLZ\t"},
},
{
fn: `
func f5(a uint64) int {

53
test/codegen/mathbits.go Normal file
View file

@ -0,0 +1,53 @@
// asmcheck
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package codegen
import "math/bits"
// --------------- //
// bits.Len* //
// --------------- //
func Len(n uint) int {
//amd64:"BSRQ"
//s390x:"FLOGR"
//arm:"CLZ" arm64:"CLZ"
//mips:"CLZ"
return bits.Len(n)
}
func Len64(n uint64) int {
//amd64:"BSRQ"
//s390x:"FLOGR"
//arm:"CLZ" arm64:"CLZ"
//mips:"CLZ"
return bits.Len64(n)
}
func Len32(n uint32) int {
//amd64:"BSRQ"
//s390x:"FLOGR"
//arm:"CLZ" arm64:"CLZ"
//mips:"CLZ"
return bits.Len32(n)
}
func Len16(n uint16) int {
//amd64:"BSRQ"
//s390x:"FLOGR"
//arm:"CLZ" arm64:"CLZ"
//mips:"CLZ"
return bits.Len16(n)
}
func Len8(n uint8) int {
//amd64 Len8 not intrisified
//s390x:"FLOGR"
//arm:"CLZ" arm64:"CLZ"
//mips:"CLZ"
return bits.Len8(n)
}