; LLVM IR from AdrianWR/push_swap :: src (search)

; 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: nounwind uwtable
define dso_local zeroext i1 @binary_search(i32 noundef %0, ptr noundef %1, i32 noundef %2) #0 {
  %4 = alloca i1, align 1
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #2
  store i32 0, ptr %9, align 4, !tbaa !5
  %12 = load i32, ptr %7, align 4, !tbaa !5
  %13 = sub nsw i32 %12, 1
  store i32 %13, ptr %10, align 4, !tbaa !5
  br label %14

14:                                               ; preds = %48, %3
  %15 = load i32, ptr %9, align 4, !tbaa !5
  %16 = load i32, ptr %10, align 4, !tbaa !5
  %17 = icmp sle i32 %15, %16
  br i1 %17, label %18, label %49

18:                                               ; preds = %14
  %19 = load i32, ptr %9, align 4, !tbaa !5
  %20 = load i32, ptr %10, align 4, !tbaa !5
  %21 = load i32, ptr %9, align 4, !tbaa !5
  %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 !5
  %25 = load ptr, ptr %6, align 8, !tbaa !9
  %26 = load i32, ptr %8, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds i32, ptr %25, i64 %27
  %29 = load i32, ptr %28, align 4, !tbaa !5
  %30 = load i32, ptr %5, align 4, !tbaa !5
  %31 = icmp eq i32 %29, %30
  br i1 %31, label %32, label %33

32:                                               ; preds = %18
  store i1 true, ptr %4, align 1
  store i32 1, ptr %11, align 4
  br label %50

33:                                               ; preds = %18
  %34 = load i32, ptr %5, align 4, !tbaa !5
  %35 = load ptr, ptr %6, align 8, !tbaa !9
  %36 = load i32, ptr %8, align 4, !tbaa !5
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds i32, ptr %35, i64 %37
  %39 = load i32, ptr %38, align 4, !tbaa !5
  %40 = icmp slt i32 %34, %39
  br i1 %40, label %41, label %44

41:                                               ; preds = %33
  %42 = load i32, ptr %8, align 4, !tbaa !5
  %43 = sub nsw i32 %42, 1
  store i32 %43, ptr %10, align 4, !tbaa !5
  br label %47

44:                                               ; preds = %33
  %45 = load i32, ptr %8, align 4, !tbaa !5
  %46 = add nsw i32 %45, 1
  store i32 %46, ptr %9, align 4, !tbaa !5
  br label %47

47:                                               ; preds = %44, %41
  br label %48

48:                                               ; preds = %47
  br label %14, !llvm.loop !11

49:                                               ; preds = %14
  store i1 false, ptr %4, align 1
  store i32 1, ptr %11, align 4
  br label %50

50:                                               ; preds = %49, %32
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  %51 = load i1, ptr %4, align 1
  ret i1 %51
}

; 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

attributes #0 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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: nofree norecurse nosync nounwind memory(argmem: read) uwtable
define dso_local noundef zeroext i1 @binary_search(i32 noundef %0, ptr nocapture noundef readonly %1, i32 noundef %2) local_unnamed_addr #0 {
  %.not19 = icmp sgt i32 %2, 0
  br i1 %.not19, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %3
  %4 = add nsw i32 %2, -1
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %12
  %.021 = phi i32 [ %.1, %12 ], [ %4, %.lr.ph.preheader ]
  %.01420 = phi i32 [ %.115, %12 ], [ 0, %.lr.ph.preheader ]
  %5 = sub nsw i32 %.021, %.01420
  %6 = sdiv i32 %5, 2
  %7 = add nsw i32 %6, %.01420
  %8 = sext i32 %7 to i64
  %9 = getelementptr inbounds i32, ptr %1, i64 %8
  %10 = load i32, ptr %9, align 4, !tbaa !5
  %11 = icmp eq i32 %10, %0
  br i1 %11, label %._crit_edge, label %12

12:                                               ; preds = %.lr.ph
  %13 = icmp sgt i32 %10, %0
  %14 = add nsw i32 %7, -1
  %15 = add nsw i32 %7, 1
  %.115 = select i1 %13, i32 %.01420, i32 %15
  %.1 = select i1 %13, i32 %14, i32 %.021
  %.not.not = icmp sgt i32 %.115, %.1
  br i1 %.not.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %12, %3
  %.not.lcssa = phi i1 [ false, %3 ], [ %11, %12 ], [ %11, %.lr.ph ]
  ret i1 %.not.lcssa
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: read) 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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass