}
}

// An override that takes region.
void PropagateUsage(
    Region* region, ElementsAttr value, int argument_index,
    llvm::SmallVector<std::pair<Region*, int>, 4>* work_list,
    llvm::MapVector<Operation*, llvm::SmallVector<unsigned int, 4>>*
        arguments_to_erase) {
  auto arg = region->getArgument(argument_index);
  for (auto& usage : arg.getUses()) {

  // Ensure that all ops are in the same region, and have the same replication
  // info.
  // TODO(bfontain): Allow for multiple regions/loops in one module.
  // TODO(patn): move this pass after cluster formation to remove the complexity
  // with replication info and metadata, cluster checking and generalizing to
  // multiple TPU clusters.
  Region* region = (*forward_pass_ops.begin())->getParentRegion();

         *
         * Lock file is {@link java.io.RandomAccessFile} that has two regions:
         * - lock state region, locked for the duration of the operation
         * - lock info region, locked just to write the lock info or read info from it
         * <br><br>
         *
         * Algorithm:<br>
         * 1. We first try to acquire a lock on the state region with retries, see {@link #lockStateRegion(LockMode)}.<br>

			return
		}

		region = regionKV.Get(RegionName)
	}
	if region != "" {
		if !validRegionRegex.MatchString(region) {
			err = Errorf(
				"region '%s' is invalid, expected simple characters such as [us-east-1, myregion...]",
				region)
			return
		}
		s.region = region
	}

String id=21
	data="start trace"
String id=22
	data="task0"
String id=23
	data="task0 region"
String id=24
	data="unended region"
String id=25
	data="region0"
String id=26
	data="region1"
String id=27
	data="key0"
String id=28
	data="0123456789abcdef"
String id=29
	data="post-existing region"
String id=30
	data="main.main.func1.1"
String id=31

}

func TestPreferredAffinity(t *testing.T) {
	labelRgChina := map[string]string{
		"region": "China",
	}
	labelRgIndia := map[string]string{
		"region": "India",
	}
	labelAzAz1 := map[string]string{
		"az": "az1",
	}
	labelAzAz2 := map[string]string{
		"az": "az2",
	}
	labelRgChinaAzAz1 := map[string]string{
		"region": "China",
		"az":     "az1",
	}
	podLabelSecurityS1 := map[string]string{

            // Recursivley call again to raise any non-"CPU" subgraphs contained
            // within nested region of `op`.
            for (auto& region : op.getRegions())
              for (auto& block : region.getBlocks())
                RaiseTargetSubgraphsForBlock(block, builder, module,
                                             /*skip_cpu=*/true, func_count,

  // IfRegion condition should always be a scalar. Select the region to fold to.
  bool cond = cond_attr.getSplatValue<BoolAttr>().getValue();
  Region& region = cond ? op.getThenBranch() : op.getElseBranch();

  // If the IfRegion is stateless but the region being inlined itself is not
  // stateless, then inlining the region could cause a loss of information.

  let summary = [{
    The `region` operation wraps high-precision ops as a logical low-precision
    quantized kernel.
  }];

  let arguments = (ins Variadic<AnyType>:$inputs,
                    TypeArrayAttr:$input_specs,
                    TypeArrayAttr:$output_specs,
                    StrAttr:$logical_kernel);
  let results = (outs Variadic<AnyType>:$outputs);
  let regions = (region SizedRegion<1>:$body);

  let summary = [{
    The `region` operation wraps high-precision ops as a logical low-precision
    quantized kernel.
  }];

  let arguments = (ins Variadic<AnyType>:$inputs,
                    TypeArrayAttr:$input_specs,
                    TypeArrayAttr:$output_specs,
                    StrAttr:$logical_kernel);
  let results = (outs Variadic<AnyType>:$outputs);
  let regions = (region SizedRegion<1>:$body);