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// Copyright 2016 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 ssa
import "testing"
// We generate memmove for copy(x[1:], x[:]), however we may change it to OpMove,
// because size is known. Check that OpMove is alias-safe, or we did call memmove.
func TestMove(t *testing.T) {
x := [...]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40}
copy(x[1:], x[:])
for i := 1; i < len(x); i++ {
if int(x[i]) != i {
t.Errorf("Memmove got converted to OpMove in alias-unsafe way. Got %d insted of %d in position %d", int(x[i]), i, i+1)
}
}
}
func TestMoveSmall(t *testing.T) {
x := [...]byte{1, 2, 3, 4, 5, 6, 7}
copy(x[1:], x[:])
for i := 1; i < len(x); i++ {
if int(x[i]) != i {
t.Errorf("Memmove got converted to OpMove in alias-unsafe way. Got %d instead of %d in position %d", int(x[i]), i, i+1)
}
}
}
func TestSubFlags(t *testing.T) {
if !subFlags32(0, 1).lt() {
t.Errorf("subFlags32(0,1).lt() returned false")
}
if !subFlags32(0, 1).ult() {
t.Errorf("subFlags32(0,1).ult() returned false")
}
}
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