; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -S -loop-unroll -unroll-force-peel-count=1 | FileCheck %s ; RUN: opt < %s -S -passes='loop-unroll' -unroll-force-peel-count=1 | FileCheck %s target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" ; Loop peeling must result in valid scope declartions define internal fastcc void @test01(i8* %p0, i8* %p1, i8* %p2) unnamed_addr align 2 { ; CHECK-LABEL: @test01( ; CHECK-NEXT: for.body47.lr.ph: ; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !0) ; CHECK-NEXT: br label [[FOR_BODY47_PEEL_BEGIN:%.*]] ; CHECK: for.body47.peel.begin: ; CHECK-NEXT: br label [[FOR_BODY47_PEEL:%.*]] ; CHECK: for.body47.peel: ; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !3) ; CHECK-NEXT: store i8 42, i8* [[P0:%.*]], align 1, !alias.scope !3 ; CHECK-NEXT: store i8 43, i8* [[P1:%.*]], align 1, !alias.scope !0 ; CHECK-NEXT: store i8 44, i8* [[P2:%.*]], align 1, !alias.scope !5 ; CHECK-NEXT: store i8 42, i8* [[P0]], align 1, !noalias !3 ; CHECK-NEXT: store i8 43, i8* [[P1]], align 1, !noalias !0 ; CHECK-NEXT: store i8 44, i8* [[P2]], align 1, !noalias !5 ; CHECK-NEXT: [[CMP52_PEEL:%.*]] = icmp eq i32 0, 0 ; CHECK-NEXT: br i1 [[CMP52_PEEL]], label [[COND_TRUE_PEEL:%.*]], label [[COND_END_PEEL:%.*]] ; CHECK: cond.true.peel: ; CHECK-NEXT: store i8 52, i8* [[P0]], align 1, !alias.scope !3 ; CHECK-NEXT: store i8 53, i8* [[P1]], align 1, !alias.scope !0 ; CHECK-NEXT: store i8 54, i8* [[P2]], align 1, !alias.scope !5 ; CHECK-NEXT: store i8 52, i8* [[P0]], align 1, !noalias !3 ; CHECK-NEXT: store i8 53, i8* [[P1]], align 1, !noalias !0 ; CHECK-NEXT: store i8 54, i8* [[P2]], align 1, !noalias !5 ; CHECK-NEXT: br label [[COND_END_PEEL]] ; CHECK: cond.end.peel: ; CHECK-NEXT: store i8 62, i8* [[P0]], align 1, !alias.scope !3 ; CHECK-NEXT: store i8 63, i8* [[P1]], align 1, !alias.scope !0 ; CHECK-NEXT: store i8 64, i8* [[P2]], align 1, !alias.scope !5 ; CHECK-NEXT: store i8 62, i8* [[P0]], align 1, !noalias !3 ; CHECK-NEXT: store i8 63, i8* [[P1]], align 1, !noalias !0 ; CHECK-NEXT: store i8 64, i8* [[P2]], align 1, !noalias !5 ; CHECK-NEXT: [[INC_PEEL:%.*]] = add nuw i32 0, 1 ; CHECK-NEXT: [[EXITCOND_NOT_PEEL:%.*]] = icmp eq i32 [[INC_PEEL]], undef ; CHECK-NEXT: br i1 [[EXITCOND_NOT_PEEL]], label [[FOR_COND_CLEANUP46:%.*]], label [[FOR_BODY47_PEEL_NEXT:%.*]] ; CHECK: for.body47.peel.next: ; CHECK-NEXT: br label [[FOR_BODY47_PEEL_NEXT1:%.*]] ; CHECK: for.body47.peel.next1: ; CHECK-NEXT: br label [[FOR_BODY47_LR_PH_PEEL_NEWPH:%.*]] ; CHECK: for.body47.lr.ph.peel.newph: ; CHECK-NEXT: br label [[FOR_BODY47:%.*]] ; CHECK: for.cond.cleanup46.loopexit: ; CHECK-NEXT: br label [[FOR_COND_CLEANUP46]] ; CHECK: for.cond.cleanup46: ; CHECK-NEXT: ret void ; CHECK: for.body47: ; CHECK-NEXT: [[J_02:%.*]] = phi i32 [ [[INC_PEEL]], [[FOR_BODY47_LR_PH_PEEL_NEWPH]] ], [ [[INC:%.*]], [[COND_END:%.*]] ] ; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata !6) ; CHECK-NEXT: store i8 42, i8* [[P0]], align 1, !alias.scope !6 ; CHECK-NEXT: store i8 43, i8* [[P1]], align 1, !alias.scope !0 ; CHECK-NEXT: store i8 44, i8* [[P2]], align 1, !alias.scope !8 ; CHECK-NEXT: store i8 42, i8* [[P0]], align 1, !noalias !6 ; CHECK-NEXT: store i8 43, i8* [[P1]], align 1, !noalias !0 ; CHECK-NEXT: store i8 44, i8* [[P2]], align 1, !noalias !8 ; CHECK-NEXT: br i1 false, label [[COND_TRUE:%.*]], label [[COND_END]] ; CHECK: cond.true: ; CHECK-NEXT: store i8 52, i8* [[P0]], align 1, !alias.scope !6 ; CHECK-NEXT: store i8 53, i8* [[P1]], align 1, !alias.scope !0 ; CHECK-NEXT: store i8 54, i8* [[P2]], align 1, !alias.scope !8 ; CHECK-NEXT: store i8 52, i8* [[P0]], align 1, !noalias !6 ; CHECK-NEXT: store i8 53, i8* [[P1]], align 1, !noalias !0 ; CHECK-NEXT: store i8 54, i8* [[P2]], align 1, !noalias !8 ; CHECK-NEXT: br label [[COND_END]] ; CHECK: cond.end: ; CHECK-NEXT: store i8 62, i8* [[P0]], align 1, !alias.scope !6 ; CHECK-NEXT: store i8 63, i8* [[P1]], align 1, !alias.scope !0 ; CHECK-NEXT: store i8 64, i8* [[P2]], align 1, !alias.scope !8 ; CHECK-NEXT: store i8 62, i8* [[P0]], align 1, !noalias !6 ; CHECK-NEXT: store i8 63, i8* [[P1]], align 1, !noalias !0 ; CHECK-NEXT: store i8 64, i8* [[P2]], align 1, !noalias !8 ; CHECK-NEXT: [[INC]] = add nuw i32 [[J_02]], 1 ; CHECK-NEXT: br i1 undef, label [[FOR_COND_CLEANUP46_LOOPEXIT:%.*]], label [[FOR_BODY47]], [[LOOP9:!llvm.loop !.*]] ; for.body47.lr.ph: call void @llvm.experimental.noalias.scope.decl(metadata !5) br label %for.body47 for.cond.cleanup46: ; preds = %cond.end ret void for.body47: ; preds = %cond.end, %for.body47.lr.ph %j.02 = phi i32 [ 0, %for.body47.lr.ph ], [ %inc, %cond.end ] call void @llvm.experimental.noalias.scope.decl(metadata !0) store i8 42, i8* %p0, !alias.scope !0 store i8 43, i8* %p1, !alias.scope !5 store i8 44, i8* %p2, !alias.scope !7 store i8 42, i8* %p0, !noalias !0 store i8 43, i8* %p1, !noalias !5 store i8 44, i8* %p2, !noalias !7 %cmp52 = icmp eq i32 %j.02, 0 br i1 %cmp52, label %cond.true, label %cond.end cond.true: ; preds = %for.body47 store i8 52, i8* %p0, !alias.scope !0 store i8 53, i8* %p1, !alias.scope !5 store i8 54, i8* %p2, !alias.scope !7 store i8 52, i8* %p0, !noalias !0 store i8 53, i8* %p1, !noalias !5 store i8 54, i8* %p2, !noalias !7 br label %cond.end cond.end: ; preds = %cond.true, %for.body47 store i8 62, i8* %p0, !alias.scope !0 store i8 63, i8* %p1, !alias.scope !5 store i8 64, i8* %p2, !alias.scope !7 store i8 62, i8* %p0, !noalias !0 store i8 63, i8* %p1, !noalias !5 store i8 64, i8* %p2, !noalias !7 %inc = add nuw i32 %j.02, 1 %exitcond.not = icmp eq i32 %inc, undef br i1 %exitcond.not, label %for.cond.cleanup46, label %for.body47, !llvm.loop !3 } ; Function Attrs: inaccessiblememonly nofree nosync nounwind willreturn declare void @llvm.experimental.noalias.scope.decl(metadata) #0 attributes #0 = { inaccessiblememonly nofree nosync nounwind willreturn } !0 = !{!1} !1 = distinct !{!1, !2, !"foo: %inner.result"} !2 = distinct !{!2, !"foo"} !3 = distinct !{!3, !4} !4 = !{!"llvm.loop.mustprogress"} !5 = !{!6} !6 = distinct !{!6, !2, !"foo: %outer.result"} !7 = !{!1, !6} ; CHECK: !0 = !{!1} ; CHECK: !1 = distinct !{!1, !2, !"foo: %outer.result"} ; CHECK: !2 = distinct !{!2, !"foo"} ; CHECK: !3 = !{!4} ; CHECK: !4 = distinct !{!4, !2, !"foo: %inner.result:Peel0"} ; CHECK: !5 = !{!4, !1} ; CHECK: !6 = !{!7} ; CHECK: !7 = distinct !{!7, !2, !"foo: %inner.result"} ; CHECK: !8 = !{!7, !1} ; CHECK: !9 = distinct !{!9, !10, !11, !12} ; CHECK: !10 = !{!"llvm.loop.mustprogress"} ; CHECK: !11 = !{!"llvm.loop.peeled.count", i32 1} ; CHECK: !12 = !{!"llvm.loop.unroll.disable"}