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Differential D19213 Diff 54030 test/Analysis/ScalarEvolution/pr27315.ll

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				; RUN: opt -analyze -scalar-evolution < %s \| FileCheck %s

				declare i1 @use(i64)

				define void @f_0() {
				; CHECK-LABEL: Classifying expressions for: @f_0

				; CHECK: %iv = phi i32 [ 0, %entry ], [ %iv.inc.nowrap, %be ]
				; CHECK-NEXT: --> {0,+,1}<nuw><nsw><%loop>
				; CHECK: %iv.inc.maywrap = add i32 %iv, 1
				; CHECK-NEXT: --> {1,+,1}<nuw><%loop>
				; CHECK: %iv.inc.maywrap.sext = sext i32 %iv.inc.maywrap to i64
				; CHECK-NEXT: --> (sext i32 {1,+,1}<nuw><%loop> to i64)
				entry:
				br label %loop

				loop:
				%iv = phi i32 [ 0, %entry ], [ %iv.inc.nowrap, %be ]
				%iv.inc.maywrap = add i32 %iv, 1
				%iv.inc.maywrap.sext = sext i32 %iv.inc.maywrap to i64
				%cond0 = call i1 @use(i64 %iv.inc.maywrap.sext)
				br i1 %cond0, label %be, label %leave

				be:
				%iv.inc.nowrap = add nsw i32 %iv, 1
				%be.cond = call i1 @use(i64 0) ;; Get an unanalyzable value
				br i1 %be.cond, label %loop, label %leave

				leave:
				ret void
				}