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test/codegen: port all small memmove tests to codegen

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This change ports all the remaining tests checking that small memmoves
are replaced with MOVs to the new codegen test harness, and deletes
them from the asm_test file.

Change-Id: I01c94b441e27a5d61518035af62d62779dafeb56
Reviewed-on: https://go-review.googlesource.com/100476
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 2018-03-14 11:07:06 +01:00
parent 858042b8fd
commit cd3aae9b81
2 changed files with 24 additions and 53 deletions
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50
src/cmd/compile/internal/gc/asm_test.go
View file

@ -630,36 +630,6 @@ var linuxAMD64Tests = []*asmTest{
`,
pos: []string{"\tANDQ\t\\$4095,"},
},
{
// Test that small memmove was replaced with direct movs
fn: `
func $() {
x := [...]byte{1, 2, 3, 4, 5, 6, 7}
copy(x[1:], x[:])
}
`,
neg: []string{"memmove"},
},
{
// Same as above but with different size
fn: `
func $() {
x := [...]byte{1, 2, 3, 4}
copy(x[1:], x[:])
}
`,
neg: []string{"memmove"},
},
{
// Same as above but with different size
fn: `
func $() {
x := [...]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}
copy(x[1:], x[:])
}
`,
neg: []string{"memmove"},
},
{
fn: `
func $(p int, q *int) bool {
@ -765,26 +735,6 @@ var linux386Tests = []*asmTest{
`,
pos: []string{"\tANDL\t\\$4095,"},
},
{
// Test that small memmove was replaced with direct movs
fn: `
func $() {
x := [...]byte{1, 2, 3, 4, 5, 6, 7}
copy(x[1:], x[:])
}
`,
neg: []string{"memmove"},
},
{
// Same as above but with different size
fn: `
func $() {
x := [...]byte{1, 2, 3, 4}
copy(x[1:], x[:])
}
`,
neg: []string{"memmove"},
},
}
var linuxS390XTests = []*asmTest{

27
test/codegen/movesmall.go
View file

@ -6,7 +6,28 @@
package codegen
func movesmall() {
x := [...]byte{1, 2, 3, 4, 5, 6, 7}
copy(x[1:], x[:]) // arm64:-".*memmove"
// These tests check that memmoves calls on small data are replaced
// with MOVs
func movesmall4() {
x := [...]byte{1, 2, 3, 4}
// 386:-".*memmove"
// amd64:-".*memmove"
// arm:-".*memmove"
// arm64:-".*memmove"
copy(x[1:], x[:])
}
func movesmall7() {
x := [...]byte{1, 2, 3, 4, 5, 6, 7}
// 386:-".*memmove"
// amd64:-".*memmove"
// arm64:-".*memmove"
copy(x[1:], x[:])
}
func movesmall16() {
x := [...]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}
// amd64:-".*memmove"
copy(x[1:], x[:])
}