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1; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S |FileCheck %s2; SCEV expansion uses existing value or value + offset to reduce duplicate code expansion so foo should only generate one select inst after loop vectorization.3; CHECK-LABEL: @foo(4; CHECK: select5; CHECK-NOT: select6 7@ySrcL = common global ptr null, align 88@smL = common global i32 0, align 49 10define void @foo(i32 %rwL, i32 %kL, i32 %xfL) {11entry:12 %sub = add nsw i32 %rwL, -113 %shr = ashr i32 %xfL, 614 %cmp.i = icmp slt i32 %sub, %shr15 %cond.i = select i1 %cmp.i, i32 %sub, i32 %shr16 %cmp6 = icmp sgt i32 %cond.i, %kL17 br i1 %cmp6, label %for.body.lr.ph, label %for.end18 19for.body.lr.ph: ; preds = %entry20 %tmp = load ptr, ptr @ySrcL, align 821 %tmp1 = sext i32 %kL to i6422 %tmp2 = sext i32 %cond.i to i6423 br label %for.body24 25for.body: ; preds = %for.body, %for.body.lr.ph26 %indvars.iv = phi i64 [ %tmp1, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]27 %reduct.07 = phi i32 [ 0, %for.body.lr.ph ], [ %add, %for.body ]28 %arrayidx = getelementptr inbounds i8, ptr %tmp, i64 %indvars.iv29 %tmp3 = load i8, ptr %arrayidx, align 130 %conv = zext i8 %tmp3 to i3231 %add = add nsw i32 %conv, %reduct.0732 %indvars.iv.next = add nsw i64 %indvars.iv, 133 %cmp = icmp slt i64 %indvars.iv.next, %tmp234 br i1 %cmp, label %for.body, label %for.end.loopexit35 36for.end.loopexit: ; preds = %for.body37 %add.lcssa = phi i32 [ %add, %for.body ]38 br label %for.end39 40for.end: ; preds = %for.end.loopexit, %entry41 %reduct.0.lcssa = phi i32 [ 0, %entry ], [ %add.lcssa, %for.end.loopexit ]42 store i32 %reduct.0.lcssa, ptr @smL, align 443 ret void44}45