; RUN: opt -indvars -loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -S < %s | FileCheck %s target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" ; We must not vectorize this loop. %add55 is not reduction. Its value is used ; multiple times. ; PR18526 ; CHECK: multiple_use_of_value ; CHECK-NOT: <2 x i32> define void @multiple_use_of_value() { entry: %n = alloca i32, align 4 %k7 = alloca i32, align 4 %nf = alloca i32, align 4 %0 = load i32, i32* %k7, align 4 %.neg1 = sub i32 0, %0 %n.promoted = load i32, i32* %n, align 4 %nf.promoted = load i32, i32* %nf, align 4 br label %for.body for.body: %inc107 = phi i32 [ undef, %entry ], [ %inc10, %for.body ] %inc6 = phi i32 [ %nf.promoted, %entry ], [ undef, %for.body ] %add55 = phi i32 [ %n.promoted, %entry ], [ %add5, %for.body ] %.neg2 = sub i32 0, %inc6 %add.neg = add i32 0, %add55 %add4.neg = add i32 %add.neg, %.neg1 %sub = add i32 %add4.neg, %.neg2 %add5 = add i32 %sub, %add55 %inc10 = add i32 %inc107, 1 %cmp = icmp ult i32 %inc10, 61 br i1 %cmp, label %for.body, label %for.end for.end: %add5.lcssa = phi i32 [ %add5, %for.body ] store i32 %add5.lcssa, i32* %n, align 4 ret void }