Upstream kelindar/bitmap state of the touched files before 7c356f442d

bitmap.go

@@ -236,36 +236,6 @@ func dimensionsOf(n, m int) uint64 {
 
 // pointersOf returns a pointer to an array containing pointers to the
 // first element of each bitmap and the maximum length of all bitmaps
-// simdBinary is one of the accelerated two-operand primitives.
-type simdBinary func(dst, src unsafe.Pointer, n uint64)
-
-// uniformLen returns the word count shared by every source, or zero when the sources
-// differ in length. The _many primitives apply a single count to all of their inputs,
-// so they can only combine sources that are all the same length.
-func uniformLen(other Bitmap, extra []Bitmap) int {
-	n := len(other)
-	for i := range extra {
-		if len(extra[i]) != n {
-			return 0
-		}
-	}
-	return n
-}
-
-// foldEach applies op to every source in turn, each over its own length. This is what
-// ragged inputs need: a longer source would be truncated by a shared count, a shorter
-// one read past its end.
-func foldEach(dst *Bitmap, op simdBinary, other Bitmap, extra []Bitmap) {
-	if len(other) > 0 {
-		op(unsafe.Pointer(&(*dst)[0]), unsafe.Pointer(&other[0]), uint64(len(other)))
-	}
-	for i := range extra {
-		if len(extra[i]) > 0 {
-			op(unsafe.Pointer(&(*dst)[0]), unsafe.Pointer(&extra[i][0]), uint64(len(extra[i])))
-		}
-	}
-}
-
 func pointersOf(other Bitmap, extra []Bitmap) (unsafe.Pointer, int) {
 	out := make([]unsafe.Pointer, len(extra)+1)
 	out[0] = unsafe.Pointer(&other[0])