1; RUN: opt < %s -passes=loop-vectorize,instcombine -force-vector-interleave=1 -force-vector-width=4 -S | FileCheck %s 2 3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 4 5;CHECK-LABEL: @start_at_nonzero( 6;CHECK: mul nuw <4 x i32> 7;CHECK: ret i32 8define i32 @start_at_nonzero(ptr nocapture %a, i32 %start, i32 %end) nounwind uwtable ssp { 9entry: 10 %cmp3 = icmp slt i32 %start, %end 11 br i1 %cmp3, label %for.body.lr.ph, label %for.end 12 13for.body.lr.ph: ; preds = %entry 14 %0 = sext i32 %start to i64 15 br label %for.body 16 17for.body: ; preds = %for.body.lr.ph, %for.body 18 %indvars.iv = phi i64 [ %0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ] 19 %arrayidx = getelementptr inbounds i32, ptr %a, i64 %indvars.iv 20 %1 = load i32, ptr %arrayidx, align 4 21 %mul = mul nuw i32 %1, 333 22 store i32 %mul, ptr %arrayidx, align 4 23 %indvars.iv.next = add i64 %indvars.iv, 1 24 %2 = trunc i64 %indvars.iv.next to i32 25 %cmp = icmp slt i32 %2, %end 26 br i1 %cmp, label %for.body, label %for.end 27 28for.end: ; preds = %for.body, %entry 29 ret i32 4 30} 31