| ; REQUIRES: asserts |
| ; RUN: opt < %s -passes='loop-vectorize' -force-target-supports-scalable-vectors=true -enable-epilogue-vectorization -epilogue-vectorization-force-VF=2 --debug-only=loop-vectorize -S -scalable-vectorization=on 2>&1 | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-n32:64-v256:256:256-v512:512:512" |
| |
| ; Currently we cannot handle scalable vectorization factors. |
| ; CHECK: LV: Checking a loop in 'f1' |
| ; CHECK: LEV: Epilogue vectorization factor is forced. |
| ; CHECK: Epilogue Loop VF:2, Epilogue Loop UF:1 |
| |
| define void @f1(ptr %A) { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i8, ptr %A, i64 %iv |
| store i8 1, ptr %arrayidx, align 1 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond = icmp ne i64 %iv.next, 1024 |
| br i1 %exitcond, label %for.body, label %exit, !llvm.loop !0 |
| |
| exit: |
| ret void |
| } |
| |
| !0 = !{!0, !1} |
| !1 = !{!"llvm.loop.vectorize.scalable.enable", i1 true} |
