revert initialize elem pointer & remove unnecessary benchmark

decode_slice.go

@@ -127,7 +127,7 @@ func (d *sliceDecoder) decodeStream(s *stream, depth int64, p unsafe.Pointer) er
 					// assign new element to the slice
 					typedmemmove(d.elemType, ep, unsafe_New(d.elemType))
 				} else if d.isElemPointerType {
-					*(*unsafe.Pointer)(ep) = nil // initialize elem pointer
+					**(**unsafe.Pointer)(unsafe.Pointer(&ep)) = nil // initialize elem pointer
 				}
 				if err := d.valueDecoder.decodeStream(s, depth, ep); err != nil {
 					return err
@@ -240,7 +240,7 @@ func (d *sliceDecoder) decode(buf []byte, cursor, depth int64, p unsafe.Pointer)
 					// assign new element to the slice
 					typedmemmove(d.elemType, ep, unsafe_New(d.elemType))
 				} else if d.isElemPointerType {
-					*(*unsafe.Pointer)(ep) = nil // initialize elem pointer
+					**(**unsafe.Pointer)(unsafe.Pointer(&ep)) = nil // initialize elem pointer
 				}
 				c, err := d.valueDecoder.decode(buf, cursor, depth, ep)
 				if err != nil {

decode_test.go

@@ -3508,46 +3508,3 @@ func TestDecodeBackSlash(t *testing.T) {
 		})
 	})
 }
-
-var (
-	isWhiteSpace = [256]bool{}
-)
-
-func init() {
-	isWhiteSpace[' '] = true
-	isWhiteSpace['\n'] = true
-	isWhiteSpace['\t'] = true
-	isWhiteSpace['\r'] = true
-}
-
-func skipWhiteSpace(buf []byte, cursor int64) int64 {
-LOOP:
-	if isWhiteSpace[buf[cursor]] {
-		cursor++
-		goto LOOP
-	}
-	return cursor
-}
-
-func skipWhiteSpaceLoop(buf []byte, cursor int64) int64 {
-	for isWhiteSpace[buf[cursor]] {
-		cursor++
-	}
-	return cursor
-}
-
-func BenchmarkSkipWhiteSpace(b *testing.B) {
-	data := []byte(" \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t \n\r\t}")
-	b.ReportAllocs()
-	b.ResetTimer()
-	b.Run("gotoLabel", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			skipWhiteSpace(data, 0)
-		}
-	})
-	b.Run("loop", func(b *testing.B) {
-		for i := 0; i < b.N; i++ {
-			skipWhiteSpaceLoop(data, 0)
-		}
-	})
-}