; LLVM IR from devparthgarg/Data-Structures-and-Algorithms :: 06. Searching/07 Search in Infinite Sized Array/07b search in infinite sorted array_96756d26 (Z14searchInfinitePii)

; 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
declare dso_local noundef i32 @_Z12binarySearchPiiii(ptr noundef, i32 noundef, i32 noundef, i32 noundef) #0

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

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

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z14searchInfinitePii(ptr noundef %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
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds i32, ptr %8, i64 0
  %10 = load i32, ptr %9, align 4, !tbaa !9
  %11 = load i32, ptr %5, align 4, !tbaa !9
  %12 = icmp eq i32 %10, %11
  br i1 %12, label %13, label %14

13:                                               ; preds = %2
  store i32 0, ptr %3, align 4
  br label %46

14:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 1, ptr %6, align 4, !tbaa !9
  br label %15

15:                                               ; preds = %23, %14
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = load i32, ptr %6, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds i32, ptr %16, i64 %18
  %20 = load i32, ptr %19, align 4, !tbaa !9
  %21 = load i32, ptr %5, align 4, !tbaa !9
  %22 = icmp slt i32 %20, %21
  br i1 %22, label %23, label %26

23:                                               ; preds = %15
  %24 = load i32, ptr %6, align 4, !tbaa !9
  %25 = mul nsw i32 %24, 2
  store i32 %25, ptr %6, align 4, !tbaa !9
  br label %15, !llvm.loop !11

26:                                               ; preds = %15
  %27 = load ptr, ptr %4, align 8, !tbaa !5
  %28 = load i32, ptr %6, align 4, !tbaa !9
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds i32, ptr %27, i64 %29
  %31 = load i32, ptr %30, align 4, !tbaa !9
  %32 = load i32, ptr %5, align 4, !tbaa !9
  %33 = icmp eq i32 %31, %32
  br i1 %33, label %34, label %36

34:                                               ; preds = %26
  %35 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %35, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %45

36:                                               ; preds = %26
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  %38 = load i32, ptr %6, align 4, !tbaa !9
  %39 = sdiv i32 %38, 2
  %40 = add nsw i32 %39, 1
  %41 = load i32, ptr %6, align 4, !tbaa !9
  %42 = sub nsw i32 %41, 1
  %43 = load i32, ptr %5, align 4, !tbaa !9
  %44 = call noundef i32 @_Z12binarySearchPiiii(ptr noundef %37, i32 noundef %40, i32 noundef %42, i32 noundef %43)
  store i32 %44, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %45

45:                                               ; preds = %36, %34
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  br label %46

46:                                               ; preds = %45, %13
  %47 = load i32, ptr %3, align 4
  ret i32 %47
}

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
declare dso_local noundef i32 @_Z12binarySearchPiiii(ptr noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z14searchInfinitePii(ptr noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = load i32, ptr %0, align 4, !tbaa !5
  %4 = icmp eq i32 %3, %1
  br i1 %4, label %17, label %.preheader

.preheader:                                       ; preds = %2, %.preheader
  %.0 = phi i32 [ %9, %.preheader ], [ 1, %2 ]
  %5 = zext nneg i32 %.0 to i64
  %6 = getelementptr inbounds i32, ptr %0, i64 %5
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = icmp slt i32 %7, %1
  %9 = shl nsw i32 %.0, 1
  br i1 %8, label %.preheader, label %10, !llvm.loop !9

10:                                               ; preds = %.preheader
  %11 = icmp eq i32 %7, %1
  br i1 %11, label %17, label %12

12:                                               ; preds = %10
  %13 = lshr i32 %.0, 1
  %14 = add nuw nsw i32 %13, 1
  %15 = add nsw i32 %.0, -1
  %16 = tail call noundef i32 @_Z12binarySearchPiiii(ptr noundef nonnull %0, i32 noundef %14, i32 noundef %15, i32 noundef %1)
  br label %17

17:                                               ; preds = %12, %10, %2
  %.1 = phi i32 [ 0, %2 ], [ %16, %12 ], [ %.0, %10 ]
  ret i32 %.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" }

!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,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass