| ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -instcombine -S | FileCheck %s |
| |
| target 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" |
| |
| ;CHECK-LABEL: @start_at_nonzero( |
| ;CHECK: mul nuw <4 x i32> |
| ;CHECK: ret i32 |
| define i32 @start_at_nonzero(i32* nocapture %a, i32 %start, i32 %end) nounwind uwtable ssp { |
| entry: |
| %cmp3 = icmp slt i32 %start, %end |
| br i1 %cmp3, label %for.body.lr.ph, label %for.end |
| |
| for.body.lr.ph: ; preds = %entry |
| %0 = sext i32 %start to i64 |
| br label %for.body |
| |
| for.body: ; preds = %for.body.lr.ph, %for.body |
| %indvars.iv = phi i64 [ %0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv |
| %1 = load i32, i32* %arrayidx, align 4 |
| %mul = mul nuw i32 %1, 333 |
| store i32 %mul, i32* %arrayidx, align 4 |
| %indvars.iv.next = add i64 %indvars.iv, 1 |
| %2 = trunc i64 %indvars.iv.next to i32 |
| %cmp = icmp slt i32 %2, %end |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: ; preds = %for.body, %entry |
| ret i32 4 |
| } |
