| ; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -enable-if-conversion -dce -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" |
| target triple = "x86_64-apple-macosx10.9.0" |
| |
| ;CHECK: @reduction_func |
| ;CHECK-NOT: load <4 x i32> |
| ;CHECK: ret i32 |
| define i32 @reduction_func(i32* nocapture %A, i32 %n) nounwind uwtable readonly ssp { |
| entry: |
| %cmp10 = icmp sgt i32 %n, 0 |
| br i1 %cmp10, label %for.body, label %for.end |
| |
| for.body: ; preds = %entry, %for.inc |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ] |
| %sum.011 = phi i32 [ %sum.1, %for.inc ], [ 0, %entry ] |
| %arrayidx = getelementptr inbounds i32* %A, i64 %indvars.iv |
| %0 = load i32* %arrayidx, align 4 |
| %cmp1 = icmp sgt i32 %0, 30 |
| br i1 %cmp1, label %if.then, label %for.inc |
| |
| if.then: ; preds = %for.body |
| %add = add i32 %sum.011, 2 |
| %add4 = add i32 %add, %0 |
| br label %for.inc |
| |
| for.inc: ; preds = %for.body, %if.then |
| %sum.1 = phi i32 [ %add4, %if.then ], [ %sum.011, %for.body ] |
| %indvars.iv.next = add i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, %n |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.inc, %entry |
| %sum.0.lcssa = phi i32 [ 0, %entry ], [ 4, %for.inc ] |
| ret i32 %sum.0.lcssa |
| } |
| |
