const compress/flate.hashMask

4 uses

	compress/flate (current package)
		deflate.go#L55: 	hashMask            = (1 << hashBits) - 1
		deflate.go#L216: 			hh := &d.hashHead[val&hashMask]
		deflate.go#L420: 			hh := &d.hashHead[hash&hashMask]
		deflate.go#L468: 						hh := &d.hashHead[hash&hashMask]

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