| ; RUN: opt -S -loop-vectorize -dce -instcombine -force-vector-width=2 -force-vector-interleave=2 < %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" |
| |
| ;PR 15830. |
| |
| ;CHECK-LABEL: @foo( |
| ; When scalarizing stores we need to preserve the original order. |
| ; Make sure that we are extracting in the correct order (0101, and not 0011). |
| ;CHECK: extractelement <2 x i64> {{.*}}, i32 0 |
| ;CHECK: extractelement <2 x i64> {{.*}}, i32 1 |
| ;CHECK: extractelement <2 x i64> {{.*}}, i32 0 |
| ;CHECK: extractelement <2 x i64> {{.*}}, i32 1 |
| ;CHECK: store |
| ;CHECK: store |
| ;CHECK: store |
| ;CHECK: store |
| ;CHECK: ret |
| |
| define i32 @foo(i32* nocapture %A) { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %0 = shl nsw i64 %indvars.iv, 2 |
| %arrayidx = getelementptr inbounds i32, i32* %A, i64 %0 |
| store i32 4, i32* %arrayidx, align 4 |
| %indvars.iv.next = add i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, 10000 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: |
| ret i32 undef |
| } |
| |
| |