//
//go:linkname add
//go:nosplit
func add(p unsafe.Pointer, x uintptr) unsafe.Pointer {
	return unsafe.Pointer(uintptr(p) + x)
}

// getg returns the pointer to the current g.
// The compiler rewrites calls to this function into instructions
// that fetch the g directly (from TLS or from the dedicated register).
func getg() *g

// mcall switches from the g to the g0 stack and invokes fn(g),

package syscall

import (
	"internal/bytealg"
	"runtime"
	"sync"
	"unicode/utf16"
	"unsafe"
)

// ForkLock is not used on Windows.
var ForkLock sync.RWMutex

// EscapeArg rewrites command line argument s as prescribed
// in https://msdn.microsoft.com/en-us/library/ms880421.
// This function returns "" (2 double quotes) if s is empty.
// Alternatively, these transformations are done:

	results := make([]*dto.MetricFamily, 0, len(metrics))
	for n, mf := range metrics {
		if e, ok := m.exported[n]; ok {
			// Apply rewrite rules for metrics that have them.
			if e.rewriters == nil {
				results = append(results, mf)
			} else {
				for _, rewriter := range e.rewriters {
					new, err := rewriter(mf)
					if err != nil {
						return nil, err
					}
					results = append(results, new)
				}
			}

  return success();
}

// Rewrites the program_key input of `preprocess_op` to use the output of
// _TPUCompileMlir.
void RewritePreprocessInputs(OpBuilder* builder, func::FuncOp func_op,
                             Operation* preprocess_op) {
  if (preprocess_op->getParentOp() == nullptr) return;

  // Find predecessor TPUCompile Op and rewrite the program key.
  Operation* tpu_compile_predecessor =

		}
		return Mem{Base: Reg((x >> 16) & (1<<4 - 1)), Mode: mode}

	case arg_R_rotate:
		Rm := Reg(x & (1<<4 - 1))
		typ, count := decodeShift(x)
		// ROR #0 here means ROR #0, but decodeShift rewrites to RRX #1.
		if typ == RotateRightExt {
			return Rm
		}
		return RegShift{Rm, typ, count}

	case arg_R_shift_R:
		Rm := Reg(x & (1<<4 - 1))
		Rs := Reg((x >> 8) & (1<<4 - 1))

	}

	return
}

// RewriteImport rewrites any import of path oldPath to path newPath.
func RewriteImport(fset *token.FileSet, f *ast.File, oldPath, newPath string) (rewrote bool) {
	for _, imp := range f.Imports {
		if importPath(imp) == oldPath {
			rewrote = true
			// record old End, because the default is to compute
			// it using the length of imp.Path.Value.

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

package ssa

// shortcircuit finds situations where branch directions
// are always correlated and rewrites the CFG to take
// advantage of that fact.
// This optimization is useful for compiling && and || expressions.
func shortcircuit(f *Func) {
	// Step 1: Replace a phi arg with a constant if that arg

			f.Imports = f.Imports[:len(f.Imports)-1]
			break
		}
	}

	return
}

// rewriteImport rewrites any import of path oldPath to path newPath.
func rewriteImport(f *ast.File, oldPath, newPath string) (rewrote bool) {
	for _, imp := range f.Imports {
		if importPath(imp) == oldPath {
			rewrote = true
			// record old End, because the default is to compute
			// it using the length of imp.Path.Value.

	p := &onePassProg{
		Start:  prog.Start,
		NumCap: prog.NumCap,
		Inst:   make([]onePassInst, len(prog.Inst)),
	}
	for i, inst := range prog.Inst {
		p.Inst[i] = onePassInst{Inst: inst}
	}

	// rewrites one or more common Prog constructs that enable some otherwise
	// non-onepass Progs to be onepass. A:BD (for example) means an InstAlt at
	// ip A, that points to ips B & C.
	// A:BC + B:DA => A:BC + B:CD

				n.To.Reg = x86.REG_DX
			}

			j.To.SetTarget(n)
			j2.To.SetTarget(s.Pc())
		}

	case ssa.Op386HMULL, ssa.Op386HMULLU:
		// the frontend rewrites constant division by 8/16/32 bit integers into
		// HMUL by a constant
		// SSA rewrites generate the 64 bit versions

		// Arg[0] is already in AX as it's the only register we allow
		// and DX is the only output we care about (the high bits)