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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
}
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