; LLVM IR from DimitrisJim/leetcode_solutions :: C/Algorithms (657)

; 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 @judgeCircle(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 0, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  store i32 0, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, 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
  br label %7

7:                                                ; preds = %28, %1
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = load i8, ptr %8, align 1, !tbaa !11
  %10 = icmp ne i8 %9, 0
  br i1 %10, label %11, label %29

11:                                               ; preds = %7
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %12, i32 1
  store ptr %13, ptr %2, align 8, !tbaa !5
  %14 = load i8, ptr %12, align 1, !tbaa !11
  %15 = sext i8 %14 to i32
  switch i32 %15, label %28 [
    i32 76, label %16
    i32 82, label %19
    i32 85, label %22
    i32 68, label %25
  ]

16:                                               ; preds = %11
  %17 = load i32, ptr %5, align 4, !tbaa !9
  %18 = add nsw i32 %17, 1
  store i32 %18, ptr %5, align 4, !tbaa !9
  br label %28

19:                                               ; preds = %11
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %21 = add nsw i32 %20, 1
  store i32 %21, ptr %6, align 4, !tbaa !9
  br label %28

22:                                               ; preds = %11
  %23 = load i32, ptr %3, align 4, !tbaa !9
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %3, align 4, !tbaa !9
  br label %28

25:                                               ; preds = %11
  %26 = load i32, ptr %4, align 4, !tbaa !9
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %4, align 4, !tbaa !9
  br label %28

28:                                               ; preds = %25, %22, %19, %16, %11
  br label %7, !llvm.loop !12

29:                                               ; preds = %7
  %30 = load i32, ptr %3, align 4, !tbaa !9
  %31 = load i32, ptr %4, align 4, !tbaa !9
  %32 = icmp eq i32 %30, %31
  br i1 %32, label %33, label %37

33:                                               ; preds = %29
  %34 = load i32, ptr %5, align 4, !tbaa !9
  %35 = load i32, ptr %6, align 4, !tbaa !9
  %36 = icmp eq i32 %34, %35
  br label %37

37:                                               ; preds = %33, %29
  %38 = phi i1 [ false, %29 ], [ %36, %33 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret i1 %38
}

; 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"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(read, inaccessiblemem: none) uwtable
define dso_local zeroext i1 @judgeCircle(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load i8, ptr %0, align 1, !tbaa !5
  %.not17 = icmp eq i8 %2, 0
  br i1 %.not17, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %13
  %3 = phi i8 [ %14, %13 ], [ %2, %1 ]
  %.022 = phi i32 [ %.1, %13 ], [ 0, %1 ]
  %.0921 = phi i32 [ %.110, %13 ], [ 0, %1 ]
  %.01120 = phi i32 [ %.112, %13 ], [ 0, %1 ]
  %.01319 = phi i32 [ %.114, %13 ], [ 0, %1 ]
  %.01518 = phi ptr [ %4, %13 ], [ %0, %1 ]
  %4 = getelementptr inbounds i8, ptr %.01518, i64 1
  switch i8 %3, label %13 [
    i8 76, label %5
    i8 82, label %7
    i8 85, label %9
    i8 68, label %11
  ]

5:                                                ; preds = %.lr.ph
  %6 = add nsw i32 %.0921, 1
  br label %13

7:                                                ; preds = %.lr.ph
  %8 = add nsw i32 %.022, 1
  br label %13

9:                                                ; preds = %.lr.ph
  %10 = add nsw i32 %.01319, 1
  br label %13

11:                                               ; preds = %.lr.ph
  %12 = add nsw i32 %.01120, 1
  br label %13

13:                                               ; preds = %11, %9, %7, %5, %.lr.ph
  %.114 = phi i32 [ %.01319, %.lr.ph ], [ %.01319, %11 ], [ %10, %9 ], [ %.01319, %7 ], [ %.01319, %5 ]
  %.112 = phi i32 [ %.01120, %.lr.ph ], [ %12, %11 ], [ %.01120, %9 ], [ %.01120, %7 ], [ %.01120, %5 ]
  %.110 = phi i32 [ %.0921, %.lr.ph ], [ %.0921, %11 ], [ %.0921, %9 ], [ %.0921, %7 ], [ %6, %5 ]
  %.1 = phi i32 [ %.022, %.lr.ph ], [ %.022, %11 ], [ %.022, %9 ], [ %8, %7 ], [ %.022, %5 ]
  %14 = load i8, ptr %4, align 1, !tbaa !5
  %.not = icmp eq i8 %14, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !8

._crit_edge:                                      ; preds = %13, %1
  %.013.lcssa = phi i32 [ 0, %1 ], [ %.114, %13 ]
  %.011.lcssa = phi i32 [ 0, %1 ], [ %.112, %13 ]
  %.09.lcssa = phi i32 [ 0, %1 ], [ %.110, %13 ]
  %.0.lcssa = phi i32 [ 0, %1 ], [ %.1, %13 ]
  %15 = icmp eq i32 %.013.lcssa, %.011.lcssa
  %16 = icmp eq i32 %.09.lcssa, %.0.lcssa
  %17 = select i1 %15, i1 %16, i1 false
  ret i1 %17
}

attributes #0 = { nofree norecurse nosync nounwind memory(read, inaccessiblemem: none) 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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