; LLVM IR from VastoLorde95/Competitive-Programming :: Hackerrank/Game Theory/Problem E/E.ll (Z5solvev)

; 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"

@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i8, align 1
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %1)
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #3
  store i8 1, ptr %4, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %7

7:                                                ; preds = %21, %0
  %8 = load i32, ptr %5, align 4, !tbaa !5
  %9 = load i32, ptr %1, align 4, !tbaa !5
  %10 = icmp slt i32 %8, %9
  br i1 %10, label %12, label %11

11:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %24

12:                                               ; preds = %7
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = icmp ne i32 %14, 1
  br i1 %15, label %16, label %17

16:                                               ; preds = %12
  store i8 0, ptr %4, align 1, !tbaa !9
  br label %17

17:                                               ; preds = %16, %12
  %18 = load i32, ptr %3, align 4, !tbaa !5
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = xor i32 %19, %18
  store i32 %20, ptr %2, align 4, !tbaa !5
  br label %21

21:                                               ; preds = %17
  %22 = load i32, ptr %5, align 4, !tbaa !5
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %5, align 4, !tbaa !5
  br label %7, !llvm.loop !11

24:                                               ; preds = %11
  %25 = load i8, ptr %4, align 1, !tbaa !9, !range !13, !noundef !14
  %26 = trunc i8 %25 to i1
  br i1 %26, label %27, label %36

27:                                               ; preds = %24
  %28 = load i32, ptr %1, align 4, !tbaa !5
  %29 = srem i32 %28, 2
  %30 = icmp ne i32 %29, 0
  br i1 %30, label %31, label %33

31:                                               ; preds = %27
  %32 = call i32 @puts(ptr noundef @.str.1)
  br label %35

33:                                               ; preds = %27
  %34 = call i32 @puts(ptr noundef @.str.2)
  br label %35

35:                                               ; preds = %33, %31
  br label %36

36:                                               ; preds = %35, %24
  %37 = load i32, ptr %2, align 4, !tbaa !5
  %38 = icmp ne i32 %37, 0
  br i1 %38, label %41, label %39

39:                                               ; preds = %36
  %40 = call i32 @puts(ptr noundef @.str.2)
  br label %43

41:                                               ; preds = %36
  %42 = call i32 @puts(ptr noundef @.str.1)
  br label %43

43:                                               ; preds = %41, %39
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #3
  ret void
}

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

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

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

declare i32 @puts(ptr noundef) #2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{i8 0, i8 2}
!14 = !{}


; 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"

@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress nofree nounwind uwtable
define dso_local void @_Z5solvev() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #3
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %4 = load i32, ptr %1, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge.thread.thread

._crit_edge:                                      ; preds = %.lr.ph
  %6 = icmp eq i32 %8, %.0610
  br i1 %spec.select, label %._crit_edge.thread, label %20

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.012 = phi i32 [ %10, %.lr.ph ], [ 0, %0 ]
  %.0511 = phi i1 [ %spec.select, %.lr.ph ], [ true, %0 ]
  %.0610 = phi i32 [ %9, %.lr.ph ], [ 0, %0 ]
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %.not9 = icmp eq i32 %8, 1
  %spec.select = select i1 %.not9, i1 %.0511, i1 false
  %9 = xor i32 %8, %.0610
  %10 = add nuw nsw i32 %.012, 1
  %11 = load i32, ptr %1, align 4, !tbaa !5
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge.thread:                               ; preds = %._crit_edge
  %13 = and i32 %11, 1
  %.not = icmp eq i32 %13, 0
  br i1 %.not, label %18, label %16

._crit_edge.thread.thread:                        ; preds = %0
  %14 = and i32 %4, 1
  %.not25 = icmp eq i32 %14, 0
  %.str.2..str.1 = select i1 %.not25, ptr @.str.2, ptr @.str.1
  %15 = call i32 @puts(ptr noundef nonnull dereferenceable(1) %.str.2..str.1)
  br label %22

16:                                               ; preds = %._crit_edge.thread
  %17 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.1)
  br i1 %6, label %22, label %21

18:                                               ; preds = %._crit_edge.thread
  %19 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  br i1 %6, label %22, label %21

20:                                               ; preds = %._crit_edge
  br i1 %6, label %22, label %21

21:                                               ; preds = %18, %16, %20
  br label %22

22:                                               ; preds = %20, %16, %18, %._crit_edge.thread.thread, %21
  %.str.1.sink = phi ptr [ @.str.1, %21 ], [ @.str.2, %._crit_edge.thread.thread ], [ @.str.2, %18 ], [ @.str.2, %16 ], [ @.str.2, %20 ]
  %23 = call i32 @puts(ptr noundef nonnull dereferenceable(1) %.str.1.sink)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #3
  ret void
}

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

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

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

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #2

attributes #0 = { mustprogress nofree 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree nounwind "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 = { 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: AggressiveInstCombinePass,CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass