| ; RUN: opt < %s -loop-vectorize -enable-arm-maskedldst -S | \ |
| ; RUN: FileCheck %s -check-prefixes=COMMON,CHECK |
| |
| ; RUN: opt < %s -loop-vectorize -enable-arm-maskedldst -prefer-predicate-over-epilog -S | \ |
| ; RUN: FileCheck -check-prefixes=COMMON,PREDFLAG %s |
| |
| target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" |
| target triple = "thumbv8.1m.main-arm-unknown-eabihf" |
| |
| define dso_local void @tail_folding_enabled(i32* noalias nocapture %A, i32* noalias nocapture readonly %B, i32* noalias nocapture readonly %C) local_unnamed_addr #0 { |
| ; COMMON-LABEL: tail_folding_enabled( |
| ; COMMON: vector.body: |
| ; COMMON: %[[WML1:.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32( |
| ; COMMON: %[[WML2:.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32( |
| ; COMMON: %[[ADD:.*]] = add nsw <4 x i32> %[[WML2]], %[[WML1]] |
| ; COMMON: call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %[[ADD]] |
| ; COMMON: br i1 %12, label %{{.*}}, label %vector.body |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: |
| ret void |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv |
| %0 = load i32, i32* %arrayidx, align 4 |
| %arrayidx2 = getelementptr inbounds i32, i32* %C, i64 %indvars.iv |
| %1 = load i32, i32* %arrayidx2, align 4 |
| %add = add nsw i32 %1, %0 |
| %arrayidx4 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv |
| store i32 %add, i32* %arrayidx4, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond = icmp eq i64 %indvars.iv.next, 430 |
| br i1 %exitcond, label %for.cond.cleanup, label %for.body, !llvm.loop !6 |
| } |
| |
| define dso_local void @tail_folding_disabled(i32* noalias nocapture %A, i32* noalias nocapture readonly %B, i32* noalias nocapture readonly %C) local_unnamed_addr #0 { |
| ; CHECK-LABEL: tail_folding_disabled( |
| ; CHECK: vector.body: |
| ; CHECK-NOT: @llvm.masked.load.v8i32.p0v8i32( |
| ; CHECK-NOT: @llvm.masked.store.v8i32.p0v8i32( |
| ; CHECK: br i1 %{{.*}}, label {{.*}}, label %vector.body |
| |
| ; PREDFLAG-LABEL: tail_folding_disabled( |
| ; PREDFLAG: vector.body: |
| ; PREDFLAG: %wide.masked.load = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32( |
| ; PREDFLAG: %wide.masked.load1 = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32( |
| ; PREDFLAG: %{{.*}} = add nsw <4 x i32> %wide.masked.load1, %wide.masked.load |
| ; PREDFLAG: call void @llvm.masked.store.v4i32.p0v4i32( |
| ; PREDFLAG: %index.next = add i64 %index, 4 |
| ; PREDFLAG: %12 = icmp eq i64 %index.next, 432 |
| ; PREDFLAG: br i1 %12, label %middle.block, label %vector.body, !llvm.loop !4 |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: |
| ret void |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv |
| %0 = load i32, i32* %arrayidx, align 4 |
| %arrayidx2 = getelementptr inbounds i32, i32* %C, i64 %indvars.iv |
| %1 = load i32, i32* %arrayidx2, align 4 |
| %add = add nsw i32 %1, %0 |
| %arrayidx4 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv |
| store i32 %add, i32* %arrayidx4, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond = icmp eq i64 %indvars.iv.next, 430 |
| br i1 %exitcond, label %for.cond.cleanup, label %for.body, !llvm.loop !10 |
| } |
| |
| ; CHECK: !0 = distinct !{!0, !1} |
| ; CHECK-NEXT: !1 = !{!"llvm.loop.isvectorized", i32 1} |
| ; CHECK-NEXT: !2 = distinct !{!2, !3, !1} |
| ; CHECK-NEXT: !3 = !{!"llvm.loop.unroll.runtime.disable"} |
| ; CHECK-NEXT: !4 = distinct !{!4, !1} |
| ; CHECK-NEXT: !5 = distinct !{!5, !3, !1} |
| |
| attributes #0 = { nofree norecurse nounwind "target-features"="+armv8.1-m.main,+mve.fp" } |
| |
| !6 = distinct !{!6, !7, !8} |
| !7 = !{!"llvm.loop.vectorize.predicate.enable", i1 true} |
| !8 = !{!"llvm.loop.vectorize.enable", i1 true} |
| |
| !10 = distinct !{!10, !11, !12} |
| !11 = !{!"llvm.loop.vectorize.predicate.enable", i1 false} |
| !12 = !{!"llvm.loop.vectorize.enable", i1 true} |