// cancelled. The returned error is the error returned by the last condition or the
// context error if the context was terminated.
//
// This is the common loop construct for all polling in the wait package.
func loopConditionUntilContext(ctx context.Context, t Timer, immediate, sliding bool, condition ConditionWithContextFunc) error {
	defer t.Stop()

	var timeCh <-chan time.Time

// RUN: tf-mlir-translate -mlir-to-graphdef %s -o - | FileCheck %s

// Verify the ops generated when Ref type is used in a while loop.
func.func @main() {
  // CHECK:  op: "RefEnter"
  // CHECK:  op: "RefMerge"
  // CHECK:  op: "RefSwitch"
  // CHECK:  op: "RefExit"
  // CHECK:  op: "RefNextIteration"
  tf_executor.graph {
    %0:3 = tf_executor.NextIteration.Source : tensor<*x!tf_type.int32ref> {device = "", T = "tfdtype$DT_INT32"} loc("while/NextIteration")

Adrian Kuegel <******@****.***> 1648469008 -0700

Andy Ly <******@****.***> 1598551625 -0700

John Howard <******@****.***> 1612556881 -0800

package ssa

import (
	"fmt"
)

type loop struct {
	header *Block // The header node of this (reducible) loop
	outer  *loop  // loop containing this loop

	// By default, children, exits, and depth are not initialized.
	children []*loop  // loops nested directly within this loop. Initialized by assembleChildren().
	exits    []*Block // exits records blocks reached by exits from this loop. Initialized by findExits().

package ssa

// loopRotate converts loops with a check-loop-condition-at-beginning
// to loops with a check-loop-condition-at-end.
// This helps loops avoid extra unnecessary jumps.
//
//	 loop:
//	   CMPQ ...
//	   JGE exit
//	   ...
//	   JMP loop
//	 exit:
//
//	  JMP entry
//	loop:
//	  ...
//	entry:
//	  CMPQ ...
//	  JLT loop
func loopRotate(f *Func) {
	loopnest := f.loopnest()

  for (int i = 0; i < n; ++i) result.push_back(ToOutput(output_tensors[i]));
  return result;
}

// The backprop loop counter and main backprop loop run in their own execution
// frame (conceptually, the main forward loop and forward loop counter run
// together in a frame, then the backprop loop counter and backprop loop run
// together in a different frame). This returns the frame name to use for the
// backprop while loops.

package escape

var x bool

func f1() {
	var p *int
loop:
	if x {
		goto loop
	}
	// BAD: We should be able to recognize that there
	// aren't any more "goto loop" after here.
	p = new(int) // ERROR "escapes to heap"
	_ = p
}

func f2() {
	var p *int
	if x {
	loop:
		goto loop
	} else {
		p = new(int) // ERROR "does not escape"
	}
	_ = p
}

func f3() {

// Package loopclosure defines an Analyzer that checks for references to
// enclosing loop variables from within nested functions.
//
// # Analyzer loopclosure
//
// loopclosure: check references to loop variables from within nested functions
//
// This analyzer reports places where a function literal references the
// iteration variable of an enclosing loop, and the loop calls the function
// in such a way (e.g. with go or defer) that it may outlive the loop