// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package syntax

import "fmt"

// PosMax is the largest line or column value that can be represented without loss.
// Incoming values (arguments) larger than PosMax will be set to PosMax.
//
// Keep this consistent with maxLineCol in go/scanner.
const PosMax = 1 << 30

// A Pos represents an absolute (line, col) source position

// then compact the set of argument bitmaps separately from the set of
// local variable bitmaps. As of 2014-04-02, doing this to the godoc binary
// is actually a net loss: we save about 50k of argument bitmaps but the new
// PCDATA tables cost about 100k. So for now we keep using a single index for
// both bitmap lists.
func (lv *liveness) compact(b *ssa.Block) {
	pos := 0