1; REQUIRES: asserts
2; RUN: opt < %s  -passes='loop-vectorize' -force-vector-width=2 -force-target-supports-scalable-vectors=true -enable-epilogue-vectorization -epilogue-vectorization-force-VF=2 --debug-only=loop-vectorize -S 2>&1 | FileCheck %s
3
4target datalayout = "e-m:e-i64:64-n32:64-v256:256:256-v512:512:512"
5
6; Currently we cannot handle scalable vectorization factors.
7; CHECK: LV: Checking a loop in "f1"
8; CHECK: LEV: Epilogue vectorization for scalable vectors not yet supported.
9
10define void @f1(i8* %A) {
11entry:
12  br label %for.body
13
14for.body:
15  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
16  %arrayidx = getelementptr inbounds i8, i8* %A, i64 %iv
17  store i8 1, i8* %arrayidx, align 1
18  %iv.next = add nuw nsw i64 %iv, 1
19  %exitcond = icmp ne i64 %iv.next, 1024
20  br i1 %exitcond, label %for.body, label %exit, !llvm.loop !0
21
22exit:
23  ret void
24}
25
26!0 = !{!0, !1}
27!1 = !{!"llvm.loop.vectorize.scalable.enable", i1 true}
28