+; PR23538
+; RUN: opt < %s -indvars -loop-deletion -S | FileCheck %s
+
+; Check IndVarSimplify should not replace exit value because or else
+; udiv will be introduced by expand and the cost will be high.
+;
+; CHECK-LABEL: @_Z3fooPKcjj(
+; CHECK-NOT: udiv
+
+declare void @_Z3mixRjj(i32* dereferenceable(4), i32)
+declare void @llvm.lifetime.start(i64, i8* nocapture)
+declare void @llvm.lifetime.end(i64, i8* nocapture)
+
+define i32 @_Z3fooPKcjj(i8* nocapture readonly %s, i32 %len, i32 %c) {
+entry:
+ %a = alloca i32, align 4
+ %tmp = bitcast i32* %a to i8*
+ call void @llvm.lifetime.start(i64 4, i8* %tmp)
+ store i32 -1640531527, i32* %a, align 4
+ %cmp8 = icmp ugt i32 %len, 11
+ br i1 %cmp8, label %while.body.lr.ph, label %while.end
+
+while.body.lr.ph: ; preds = %entry
+ br label %while.body
+
+while.body: ; preds = %while.body, %while.body.lr.ph
+ %keylen.010 = phi i32 [ %len, %while.body.lr.ph ], [ %sub, %while.body ]
+ %s.addr.09 = phi i8* [ %s, %while.body.lr.ph ], [ %add.ptr, %while.body ]
+ %tmp1 = bitcast i8* %s.addr.09 to i32*
+ %tmp2 = load i32, i32* %tmp1, align 4
+ %shl.i = shl i32 %tmp2, 1
+ %and.i = and i32 %shl.i, 16843008
+ %tmp3 = load i32, i32* %a, align 4
+ %sub.i = add i32 %tmp3, %tmp2
+ %add = sub i32 %sub.i, %and.i
+ store i32 %add, i32* %a, align 4
+ %add.ptr = getelementptr inbounds i8, i8* %s.addr.09, i64 12
+ %sub = add i32 %keylen.010, -12
+ %cmp = icmp ugt i32 %sub, 11
+ br i1 %cmp, label %while.body, label %while.cond.while.end_crit_edge
+
+while.cond.while.end_crit_edge: ; preds = %while.body
+ %sub.lcssa = phi i32 [ %sub, %while.body ]
+ br label %while.end
+
+while.end: ; preds = %while.cond.while.end_crit_edge, %entry
+ %keylen.0.lcssa = phi i32 [ %sub.lcssa, %while.cond.while.end_crit_edge ], [ %len, %entry ]
+ call void @_Z3mixRjj(i32* dereferenceable(4) %a, i32 %keylen.0.lcssa)
+ %tmp4 = load i32, i32* %a, align 4
+ call void @llvm.lifetime.end(i64 4, i8* %tmp)
+ ret i32 %tmp4
+}