diff options
Diffstat (limited to 'libgo/go/runtime/gcinfo_test.go')
| -rw-r--r-- | libgo/go/runtime/gcinfo_test.go | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/libgo/go/runtime/gcinfo_test.go b/libgo/go/runtime/gcinfo_test.go index c26f411..d329e32 100644 --- a/libgo/go/runtime/gcinfo_test.go +++ b/libgo/go/runtime/gcinfo_test.go @@ -63,7 +63,7 @@ func TestGCInfo(t *testing.T) { } for i := 0; i < 10; i++ { - verifyGCInfo(t, "heap Ptr", escape(new(Ptr)), trimDead(padDead(infoPtr))) + verifyGCInfo(t, "heap Ptr", escape(new(Ptr)), trimDead(infoPtr)) verifyGCInfo(t, "heap PtrSlice", escape(&make([]*byte, 10)[0]), trimDead(infoPtr10)) verifyGCInfo(t, "heap ScalarPtr", escape(new(ScalarPtr)), trimDead(infoScalarPtr)) verifyGCInfo(t, "heap ScalarPtrSlice", escape(&make([]ScalarPtr, 4)[0]), trimDead(infoScalarPtr4)) @@ -83,25 +83,10 @@ func verifyGCInfo(t *testing.T, name string, p interface{}, mask0 []byte) { } } -func padDead(mask []byte) []byte { - // Because the dead bit isn't encoded in the second word, - // and because on 32-bit systems a one-word allocation - // uses a two-word block, the pointer info for a one-word - // object needs to be expanded to include an extra scalar - // on 32-bit systems to match the heap bitmap. - if runtime.PtrSize == 4 && len(mask) == 1 { - return []byte{mask[0], 0} - } - return mask -} - func trimDead(mask []byte) []byte { - for len(mask) > 2 && mask[len(mask)-1] == typeScalar { + for len(mask) > 0 && mask[len(mask)-1] == typeScalar { mask = mask[:len(mask)-1] } - if len(mask) == 2 && mask[0] == typeScalar && mask[1] == typeScalar { - mask = mask[:0] - } return mask } |