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test/codegen: port arm64 byte slice zeroing tests

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And delete them from asm_test.

Change-Id: Id533130470da9176a401cb94972f626f43a62148
Reviewed-on: https://go-review.googlesource.com/103656
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 2018-03-30 14:15:15 +02:00
parent 4ed94ef1a8
commit f2abca90a2
2 changed files with 41 additions and 90 deletions
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90
src/cmd/compile/internal/gc/asm_test.go
View file

@ -429,54 +429,6 @@ var linuxARM64Tests = []*asmTest{
pos: []string{"\tCSEL\t"},
},
// Check that zero stores are combine into larger stores
{
fn: `
func $(b []byte) {
_ = b[1] // early bounds check to guarantee safety of writes below
b[0] = 0
b[1] = 0
}
`,
pos: []string{"MOVH\tZR"},
neg: []string{"MOVB"},
},
{
fn: `
func $(b []byte) {
_ = b[1] // early bounds check to guarantee safety of writes below
b[1] = 0
b[0] = 0
}
`,
pos: []string{"MOVH\tZR"},
neg: []string{"MOVB"},
},
{
fn: `
func $(b []byte) {
_ = b[3] // early bounds check to guarantee safety of writes below
b[0] = 0
b[1] = 0
b[2] = 0
b[3] = 0
}
`,
pos: []string{"MOVW\tZR"},
neg: []string{"MOVB", "MOVH"},
},
{
fn: `
func $(b []byte) {
_ = b[3] // early bounds check to guarantee safety of writes below
b[2] = 0
b[3] = 0
b[1] = 0
b[0] = 0
}
`,
pos: []string{"MOVW\tZR"},
neg: []string{"MOVB", "MOVH"},
},
{
fn: `
func $(h []uint16) {
@ -499,23 +451,6 @@ var linuxARM64Tests = []*asmTest{
pos: []string{"MOVW\tZR"},
neg: []string{"MOVB", "MOVH"},
},
{
fn: `
func $(b []byte) {
_ = b[7] // early bounds check to guarantee safety of writes below
b[0] = 0
b[1] = 0
b[2] = 0
b[3] = 0
b[4] = 0
b[5] = 0
b[6] = 0
b[7] = 0
}
`,
pos: []string{"MOVD\tZR"},
neg: []string{"MOVB", "MOVH", "MOVW"},
},
{
fn: `
func $(h []uint16) {
@ -564,31 +499,6 @@ var linuxARM64Tests = []*asmTest{
pos: []string{"MOVD\tZR"},
neg: []string{"MOVB", "MOVH", "MOVW"},
},
{
fn: `
func $(b []byte) {
_ = b[15] // early bounds check to guarantee safety of writes below
b[0] = 0
b[1] = 0
b[2] = 0
b[3] = 0
b[4] = 0
b[5] = 0
b[6] = 0
b[7] = 0
b[8] = 0
b[9] = 0
b[10] = 0
b[11] = 0
b[12] = 0
b[13] = 0
b[15] = 0
b[14] = 0
}
`,
pos: []string{"STP"},
neg: []string{"MOVB", "MOVH", "MOVW"},
},
{
fn: `
func $(h []uint16) {