; LLVM IR from buresjan/optim_lbm :: nomad/src/Math/Direction.ll (ZN9NOMAD_4_39DirectionmIERKS0_)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.NOMAD_4_3::ArrayOfDouble" = type { ptr, i64, ptr }
%"class.NOMAD_4_3::Double" = type <{ ptr, double, i8, [7 x i8] }>

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK9NOMAD_4_313ArrayOfDouble4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

declare noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZN9NOMAD_4_39DirectionmIERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #3 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  store i64 0, ptr %5, align 8, !tbaa !9
  br label %7

7:                                                ; preds = %21, %2
  %8 = load i64, ptr %5, align 8, !tbaa !9
  %9 = call noundef i64 @_ZNK9NOMAD_4_313ArrayOfDouble4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %6)
  %10 = icmp ult i64 %8, %9
  br i1 %10, label %12, label %11

11:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  br label %24

12:                                               ; preds = %7
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = load i64, ptr %5, align 8, !tbaa !9
  %15 = call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %13, i64 noundef %14)
  %16 = getelementptr inbounds %"class.NOMAD_4_3::ArrayOfDouble", ptr %6, i32 0, i32 2
  %17 = load ptr, ptr %16, align 8, !tbaa !11
  %18 = load i64, ptr %5, align 8, !tbaa !9
  %19 = getelementptr inbounds %"class.NOMAD_4_3::Double", ptr %17, i64 %18
  %20 = call noundef nonnull align 8 dereferenceable(17) ptr @_ZN9NOMAD_4_36DoublemIERKS0_(ptr noundef nonnull align 8 dereferenceable(17) %19, ptr noundef nonnull align 8 dereferenceable(17) %15)
  br label %21

21:                                               ; preds = %12
  %22 = load i64, ptr %5, align 8, !tbaa !9
  %23 = add i64 %22, 1
  store i64 %23, ptr %5, align 8, !tbaa !9
  br label %7, !llvm.loop !13

24:                                               ; preds = %11
  ret ptr %6
}

declare noundef nonnull align 8 dereferenceable(17) ptr @_ZN9NOMAD_4_36DoublemIERKS0_(ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(17)) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 16}
!12 = !{!"_ZTSN9NOMAD_4_313ArrayOfDoubleE", !10, i64 8, !6, i64 16}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.NOMAD_4_3::Double" = type <{ ptr, double, i8, [7 x i8] }>

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK9NOMAD_4_313ArrayOfDouble4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

declare noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZN9NOMAD_4_39DirectionmIERKS0_(ptr noundef nonnull returned align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %1) local_unnamed_addr #2 align 2 {
  %3 = tail call noundef i64 @_ZNK9NOMAD_4_313ArrayOfDouble4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0)
  %.not = icmp eq i64 %3, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  br label %5

._crit_edge:                                      ; preds = %5, %2
  ret ptr %0

5:                                                ; preds = %.lr.ph, %5
  %.05 = phi i64 [ 0, %.lr.ph ], [ %10, %5 ]
  %6 = tail call noundef nonnull align 8 dereferenceable(17) ptr @_ZNK9NOMAD_4_313ArrayOfDoubleixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %.05)
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = getelementptr inbounds %"class.NOMAD_4_3::Double", ptr %7, i64 %.05
  %9 = tail call noundef nonnull align 8 dereferenceable(17) ptr @_ZN9NOMAD_4_36DoublemIERKS0_(ptr noundef nonnull align 8 dereferenceable(17) %8, ptr noundef nonnull align 8 dereferenceable(17) %6)
  %10 = add nuw i64 %.05, 1
  %11 = tail call noundef i64 @_ZNK9NOMAD_4_313ArrayOfDouble4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0)
  %12 = icmp ult i64 %10, %11
  br i1 %12, label %5, label %._crit_edge, !llvm.loop !11
}

declare noundef nonnull align 8 dereferenceable(17) ptr @_ZN9NOMAD_4_36DoublemIERKS0_(ptr noundef nonnull align 8 dereferenceable(17), ptr noundef nonnull align 8 dereferenceable(17)) local_unnamed_addr #1

attributes #0 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !10, i64 16}
!6 = !{!"_ZTSN9NOMAD_4_313ArrayOfDoubleE", !7, i64 8, !10, i64 16}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass