if p.As == AEXRL {
		return
	}

	// We only care about global data: NAME_EXTERN means a global
	// symbol in the Go sense, and p.Sym.Local is true for a few
	// internally defined symbols.
	// Rewrites must not clobber flags and therefore cannot use the
	// ADD instruction.
	if p.From.Type == obj.TYPE_ADDR && p.From.Name == obj.NAME_EXTERN && !p.From.Sym.Local() {
		// MOVD $sym, Rx becomes MOVD sym@GOT, Rx

}

// These cases are division of a positive signed integer by a power of 2.
// The opt pass doesnt have sufficient information to see that n is positive.
// So, instead, opt rewrites the division with a less-than-optimal replacement.
// Prove, which can see that n is nonnegative, cannot see the division because
// opt, an earlier pass, has already replaced it.

		if os.IsExist(err) {
			if ctx.Err() != nil {
				return nil, ctx.Err()
			}
			continue
		}
		break
	}
	return
}

// rewriteVersionList rewrites the version list in dir
// after a new *.mod file has been written.
func rewriteVersionList(ctx context.Context, dir string) (err error) {
	if filepath.Base(dir) != "@v" {

// which allows bisect to identify the specific call stacks where
// the changed [GODEBUG setting] value causes the target to fail.
//
// # Example
//
// The Go compiler provides support for enabling or disabling certain rewrites
// and optimizations to allow bisect to identify specific source locations where
// the rewrite causes the program to fail. For example, to bisect a failure caused
// by the new loop variable semantics:
//

package template

import (
	"bytes"
	"fmt"
	"html"
	"internal/godebug"
	"io"
	"regexp"
	"text/template"
	"text/template/parse"
)

// escapeTemplate rewrites the named template, which must be
// associated with t, to guarantee that the output of any of the named
// templates is properly escaped. If no error is returned, then the named templates have

      /*use_resource_updates_for_aliases=*/false, shape_determination_fns,
      compilation_result, custom_legalization_passes, module_name,
      lower_to_xla_hlo);
}

// Rewrites the given module with specified args. For each of the constant args,
// it gets inlined in the "main' function and the corresponding argument is
// removed from the signature. For resource args, their subtypes are populated.

			})
		}()
	}

	return newInstrumentedAuthenticator(issuerURL, authn), nil
}

type errorHolder struct {
	err error
}

// discoveryURLRoundTripper is a http.RoundTripper that rewrites the
// {url}/.well-known/openid-configuration to the discovery URL.
type discoveryURLRoundTripper struct {
	base http.RoundTripper
	// discoveryURL is the URL to use to fetch the openid configuration

	// namespace A that has some path rewrite, while listener2 could import
	// a private virtual service for serviceA from the local namespace,
	// with a different path rewrite or no path rewrites.
	virtualServices []config.Config

	// An index of hostname to the namespaced name of the VirtualService containing the most

	//TODO: this compiles to add r5,r6,r0. It should be addi r5,r6,0.
	//      this is OK since r0 == $0, but the latter is preferred.
	ADD $0, R6, R5             	// 7ca60214

        //TODO: the assembler rewrites these into ADDIS $19, R5, Rx and ADD $-10617, Rx, Rx, but the test only sees the first ADDIS
	ADD $1234567, R5                // 3ca50013 or 0600001238a5d687
	ADD $1234567, R5, R6            // 3cc50013 or 0600001238c5d687

(Avg32u <t> x y) => (ADD (SRLconst <t> (SUB <t> x y) [1]) y)

(And(32|16|8) ...) => (AND ...)
(Or(32|16|8) ...) => (OR ...)
(Xor(32|16|8) ...) => (XOR ...)

// constant shifts
// generic opt rewrites all constant shifts to shift by Const64
(Lsh32x64  x (Const64 [c])) && uint32(c) < 32 => (SLLconst x [int32(c)])
(Rsh32x64  x (Const64 [c])) && uint32(c) < 32 => (SRAconst x [int32(c)])