a slice backward.
- [Collect](/pkg/slices#Collect) collects values from an iterator into
  a new slice.
- [AppendSeq](/pkg/slices#AppendSeq) appends values from an iterator to
  an existing slice.
- [Sorted](/pkg/slices#Sorted) collects values from an iterator into a
  new slice, and then sorts the slice.
- [SortedFunc](/pkg/slices#SortedFunc) is like `Sorted` but with a
  comparison function.

-- .info --
{"Version":"v1.0.0"}
-- .mod --
// Deprecated: in v1.0.0
module example.com/undeprecated

go 1.17
-- go.mod --
// Deprecated: in v1.0.0
module example.com/undeprecated

go 1.17
-- undeprecated.go --
package undeprecated

-- cmd/a/a.go --
package main

import "fmt"

(BitRev32 ...) => (RBITW ...)
(BitRev16   x) => (SRLconst [48] (RBIT <typ.UInt64> x))
(BitRev8    x) => (SRLconst [56] (RBIT <typ.UInt64> x))

// In fact, UMOD will be translated into UREM instruction, and UREM is originally translated into
// UDIV and MSUB instructions. But if there is already an identical UDIV instruction just before or
// after UREM (case like quo, rem := z/y, z%y), then the second UDIV instruction becomes redundant.

The [CopyFS] function copies an [io/fs.FS] into the local filesystem....

(BTLconst [c] (SHLLconst [d] x)) && c>d      => (BTLconst [c-d] x)
(BTLconst [0] s:(SHR(L|XL) x y)) => (BTL y x)

// Rewrite a & 1 != 1 into a & 1 == 0.
// Among other things, this lets us turn (a>>b)&1 != 1 into a bit test.
(SET(NE|EQ) (CMPLconst [1] s:(ANDLconst [1] _))) => (SET(EQ|NE) (CMPLconst [0] s))

// or -1 based on the sign bit of x.
//
// We implement this by performing the max shift (-1) if y > the maximum value.
//
// We OR (uint64(y < 64) - 1) into y before passing it to SRA. This leaves
// us with -1 (0xffff...) if y >= 64.  Similarly, we OR (uint64(y < 32) - 1) into y
// before passing it to SRAW.
//
// We don't need to sign-extend the OR result, as it will be at minimum 8 bits,

// De-virtualize late-expanded interface calls into late-expanded static calls.
(InterLECall [argsize] {auxCall} (Addr {fn} (SB)) ___) => devirtLECall(v, fn.(*obj.LSym))

// Move and Zero optimizations.
// Move source and destination may overlap.

// Convert Moves into Zeros when the source is known to be zeros.

As a release cycle nears completion, run `relnote todo` to get a list of
unfinished release note work.

To prepare the release notes for a release, run `relnote generate`.
That will merge the `.md` files in `next` into a single file.
Atomically (as close to it as possible) add that file to `_content/doc` directory
of the website repository and remove the `doc/next` directory in this repository.

-- .info --
{"Version":"v1.0.0"}
-- .mod --
module example.com/deprecated/a

go 1.17
-- go.mod --
module example.com/deprecated/a

go 1.17
-- a.go --
package a

-- cmd/a/a.go --
package main

import "fmt"

The new [Localize] function safely converts a slash-separated