; LLVM IR from ritikbanger/Hacktoberfest2022-DSA :: 05. Searching/search_rotated_sorted_array.ll (Z6searchRSt6vectorIiSaIiEEi)

; 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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z6searchRSt6vectorIiSaIiEEi(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 0, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %10) #2
  %12 = sub i64 %11, 1
  %13 = trunc i64 %12 to i32
  store i32 %13, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  br label %14

14:                                               ; preds = %92, %2
  %15 = load i32, ptr %6, align 4, !tbaa !9
  %16 = load i32, ptr %7, align 4, !tbaa !9
  %17 = icmp sle i32 %15, %16
  br i1 %17, label %18, label %93

18:                                               ; preds = %14
  %19 = load i32, ptr %6, align 4, !tbaa !9
  %20 = load i32, ptr %7, align 4, !tbaa !9
  %21 = load i32, ptr %6, align 4, !tbaa !9
  %22 = sub nsw i32 %20, %21
  %23 = sdiv i32 %22, 2
  %24 = add nsw i32 %19, %23
  store i32 %24, ptr %8, align 4, !tbaa !9
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = load i32, ptr %8, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %25, i64 noundef %27) #2
  %29 = load i32, ptr %28, align 4, !tbaa !9
  %30 = load i32, ptr %5, align 4, !tbaa !9
  %31 = icmp eq i32 %29, %30
  br i1 %31, label %32, label %34

32:                                               ; preds = %18
  %33 = load i32, ptr %8, align 4, !tbaa !9
  store i32 %33, ptr %3, align 4
  store i32 1, ptr %9, align 4
  br label %94

34:                                               ; preds = %18
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  %36 = load i32, ptr %6, align 4, !tbaa !9
  %37 = sext i32 %36 to i64
  %38 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %35, i64 noundef %37) #2
  %39 = load i32, ptr %38, align 4, !tbaa !9
  %40 = load ptr, ptr %4, align 8, !tbaa !5
  %41 = load i32, ptr %8, align 4, !tbaa !9
  %42 = sext i32 %41 to i64
  %43 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %40, i64 noundef %42) #2
  %44 = load i32, ptr %43, align 4, !tbaa !9
  %45 = icmp sle i32 %39, %44
  br i1 %45, label %46, label %69

46:                                               ; preds = %34
  %47 = load i32, ptr %5, align 4, !tbaa !9
  %48 = load ptr, ptr %4, align 8, !tbaa !5
  %49 = load i32, ptr %6, align 4, !tbaa !9
  %50 = sext i32 %49 to i64
  %51 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %48, i64 noundef %50) #2
  %52 = load i32, ptr %51, align 4, !tbaa !9
  %53 = icmp sge i32 %47, %52
  br i1 %53, label %54, label %65

54:                                               ; preds = %46
  %55 = load i32, ptr %5, align 4, !tbaa !9
  %56 = load ptr, ptr %4, align 8, !tbaa !5
  %57 = load i32, ptr %8, align 4, !tbaa !9
  %58 = sext i32 %57 to i64
  %59 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %56, i64 noundef %58) #2
  %60 = load i32, ptr %59, align 4, !tbaa !9
  %61 = icmp sle i32 %55, %60
  br i1 %61, label %62, label %65

62:                                               ; preds = %54
  %63 = load i32, ptr %8, align 4, !tbaa !9
  %64 = sub nsw i32 %63, 1
  store i32 %64, ptr %7, align 4, !tbaa !9
  br label %68

65:                                               ; preds = %54, %46
  %66 = load i32, ptr %8, align 4, !tbaa !9
  %67 = add nsw i32 %66, 1
  store i32 %67, ptr %6, align 4, !tbaa !9
  br label %68

68:                                               ; preds = %65, %62
  br label %92

69:                                               ; preds = %34
  %70 = load i32, ptr %5, align 4, !tbaa !9
  %71 = load ptr, ptr %4, align 8, !tbaa !5
  %72 = load i32, ptr %8, align 4, !tbaa !9
  %73 = sext i32 %72 to i64
  %74 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %71, i64 noundef %73) #2
  %75 = load i32, ptr %74, align 4, !tbaa !9
  %76 = icmp sge i32 %70, %75
  br i1 %76, label %77, label %88

77:                                               ; preds = %69
  %78 = load i32, ptr %5, align 4, !tbaa !9
  %79 = load ptr, ptr %4, align 8, !tbaa !5
  %80 = load i32, ptr %7, align 4, !tbaa !9
  %81 = sext i32 %80 to i64
  %82 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %79, i64 noundef %81) #2
  %83 = load i32, ptr %82, align 4, !tbaa !9
  %84 = icmp sle i32 %78, %83
  br i1 %84, label %85, label %88

85:                                               ; preds = %77
  %86 = load i32, ptr %8, align 4, !tbaa !9
  %87 = add nsw i32 %86, 1
  store i32 %87, ptr %6, align 4, !tbaa !9
  br label %91

88:                                               ; preds = %77, %69
  %89 = load i32, ptr %8, align 4, !tbaa !9
  %90 = sub nsw i32 %89, 1
  store i32 %90, ptr %7, align 4, !tbaa !9
  br label %91

91:                                               ; preds = %88, %85
  br label %92

92:                                               ; preds = %91, %68
  br label %14, !llvm.loop !11

93:                                               ; preds = %14
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %9, align 4
  br label %94

94:                                               ; preds = %93, %32
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %95 = load i32, ptr %3, align 4
  ret i32 %95
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z6searchRSt6vectorIiSaIiEEi(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = tail call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #1
  %4 = trunc i64 %3 to i32
  %5 = add i32 %4, -1
  %.not39 = icmp slt i32 %5, 0
  br i1 %.not39, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %40
  %.03041 = phi i32 [ %.1, %40 ], [ %5, %2 ]
  %.03140 = phi i32 [ %.132, %40 ], [ 0, %2 ]
  %6 = sub nsw i32 %.03041, %.03140
  %7 = sdiv i32 %6, 2
  %8 = add nsw i32 %7, %.03140
  %9 = sext i32 %8 to i64
  %10 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %9) #1
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = icmp eq i32 %11, %1
  br i1 %12, label %._crit_edge, label %13

13:                                               ; preds = %.lr.ph
  %14 = sext i32 %.03140 to i64
  %15 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %14) #1
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %9) #1
  %18 = load i32, ptr %17, align 4, !tbaa !5
  %.not34 = icmp sgt i32 %16, %18
  br i1 %.not34, label %29, label %19

19:                                               ; preds = %13
  %20 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %14) #1
  %21 = load i32, ptr %20, align 4, !tbaa !5
  %.not37 = icmp sgt i32 %21, %1
  br i1 %.not37, label %27, label %22

22:                                               ; preds = %19
  %23 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %9) #1
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %.not38 = icmp slt i32 %24, %1
  br i1 %.not38, label %27, label %25

25:                                               ; preds = %22
  %26 = add nsw i32 %8, -1
  br label %40

27:                                               ; preds = %22, %19
  %28 = add nsw i32 %8, 1
  br label %40

29:                                               ; preds = %13
  %30 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %9) #1
  %31 = load i32, ptr %30, align 4, !tbaa !5
  %.not35 = icmp sgt i32 %31, %1
  br i1 %.not35, label %38, label %32

32:                                               ; preds = %29
  %33 = sext i32 %.03041 to i64
  %34 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %33) #1
  %35 = load i32, ptr %34, align 4, !tbaa !5
  %.not36 = icmp slt i32 %35, %1
  br i1 %.not36, label %38, label %36

36:                                               ; preds = %32
  %37 = add nsw i32 %8, 1
  br label %40

38:                                               ; preds = %32, %29
  %39 = add nsw i32 %8, -1
  br label %40

40:                                               ; preds = %36, %38, %25, %27
  %.132 = phi i32 [ %.03140, %25 ], [ %28, %27 ], [ %37, %36 ], [ %.03140, %38 ]
  %.1 = phi i32 [ %26, %25 ], [ %.03041, %27 ], [ %.03041, %36 ], [ %39, %38 ]
  %.not = icmp sgt i32 %.132, %.1
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %40, %2
  %.0 = phi i32 [ -1, %2 ], [ -1, %40 ], [ %8, %.lr.ph ]
  ret i32 %.0
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass