// CHECK-LABEL: testValidWhileRegion
func.func @testValidWhileRegion(%arg0 : tensor<*xf32>, %arg1 : tensor<i32>) -> tensor<*xf32> {
  %0:2 = "tf.WhileRegion"(%arg0, %arg1) (
    {
      // condition, check if count has reached 0
      ^bb0(%carg0: tensor<*xf32>, %carg1: tensor<i32>):
      %zero = arith.constant dense<0> : tensor<i32>
      %ne = "tf.NotEqual"(%carg1, %zero) : (tensor<i32>, tensor<i32>) -> tensor<i1>

		if r == obj.REG_NONE {
			r = rt
		}
		o1 |= (uint32(rf&31) << 16) | (uint32(r&31) << 5) | uint32(rt&31)

	// This is supposed to be something that stops execution.
	// It's not supposed to be reached, ever, but if it is, we'd
	// like to be able to tell how we got there. Assemble as
	// 0xbea71700 which is guaranteed to raise undefined instruction
	// exception.
	case 90:
		o1 = 0xbea71700

				acquireLockRankAndM(lockRankGscan)
			}
			return r

		}
	}
	print("runtime: castogscanstatus oldval=", hex(oldval), " newval=", hex(newval), "\n")
	throw("castogscanstatus")
	panic("not reached")
}

// casgstatusAlwaysTrack is a debug flag that causes casgstatus to always track
// various latencies on every transition instead of sampling them.
var casgstatusAlwaysTrack = false

Colours might stand to the Right Hand, and the other to the Left. Close before the Paper, at the Confine of the Colours below, I placed a Candle to illuminate the Paper strongly: For the Experiment was tried in the Night. The Flame of the Candle reached up to the lower edge of the Paper, or a very little higher. Then at the distance of six Feet, and one or two Inches from the Paper upon the Floor I erected a Glass Lens four Inches and a quarter broad, which might collect the Rays coming from the...