// According to the layout algorithm, the predecessor with the
					// smaller blockOrder is the true branch, and the test results show
					// that it is better to choose the predecessor with a smaller
					// blockOrder than no choice.
					if pb.likelyBranch() && !pSel.likelyBranch() || s.blockOrder[pb.ID] < s.blockOrder[pSel.ID] {
						idx = i
					}
				}
			}
			if idx < 0 {