Files
avo/pass/alloc_test.go
2018-12-28 15:48:37 -08:00

47 lines
701 B
Go

package pass
import (
"testing"
"github.com/mmcloughlin/avo/reg"
)
func TestAllocatorSimple(t *testing.T) {
c := reg.NewCollection()
x, y := c.Xv(), c.Yv()
a, err := NewAllocatorForKind(reg.SSEAVX)
if err != nil {
t.Fatal(err)
}
a.Add(x)
a.Add(y)
a.AddInterference(x, y)
alloc, err := a.Allocate()
if err != nil {
t.Fatal(err)
}
t.Log(alloc)
if alloc[x] != reg.X0 || alloc[y] != reg.Y1 {
t.Fatalf("unexpected allocation")
}
}
func TestAllocatorImpossible(t *testing.T) {
a, err := NewAllocatorForKind(reg.SSEAVX)
if err != nil {
t.Fatal(err)
}
a.AddInterference(reg.X7, reg.Z7)
_, err = a.Allocate()
if err == nil {
t.Fatal("expected allocation error")
}
}