; LLVM IR from ritikbanger/Hacktoberfest2022-DSA :: 36. C Programs (calendar)

; 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 [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [22 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @gotoxy(i32 noundef, i32 noundef) #0

declare i32 @printf(ptr noundef, ...) #1

; Function Attrs: nounwind uwtable
define dso_local void @printmonth(i32 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @gotoxy(i32 noundef 5, i32 noundef 0)
  %7 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  call void @gotoxy(i32 noundef 10, i32 noundef 2)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 1, ptr %5, align 4, !tbaa !5
  br label %8

8:                                                ; preds = %15, %2
  %9 = load i32, ptr %5, align 4, !tbaa !5
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = icmp slt i32 %9, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %18

13:                                               ; preds = %8
  %14 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  br label %15

15:                                               ; preds = %13
  %16 = load i32, ptr %5, align 4, !tbaa !5
  %17 = add nsw i32 %16, 1
  store i32 %17, ptr %5, align 4, !tbaa !5
  br label %8, !llvm.loop !9

18:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 1, ptr %6, align 4, !tbaa !5
  br label %19

19:                                               ; preds = %36, %18
  %20 = load i32, ptr %6, align 4, !tbaa !5
  %21 = load i32, ptr %3, align 4, !tbaa !5
  %22 = icmp sle i32 %20, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %39

24:                                               ; preds = %19
  %25 = load i32, ptr %6, align 4, !tbaa !5
  %26 = call i32 (ptr, ...) @printf(ptr noundef @.str.4, i32 noundef %25)
  %27 = load i32, ptr %6, align 4, !tbaa !5
  %28 = sub nsw i32 %27, 1
  %29 = load i32, ptr %4, align 4, !tbaa !5
  %30 = add nsw i32 %28, %29
  %31 = srem i32 %30, 7
  %32 = icmp eq i32 %31, 0
  br i1 %32, label %33, label %35

33:                                               ; preds = %24
  %34 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  call void @gotoxy(i32 noundef 10, i32 noundef 0)
  br label %35

35:                                               ; preds = %33, %24
  br label %36

36:                                               ; preds = %35
  %37 = load i32, ptr %6, align 4, !tbaa !5
  %38 = add nsw i32 %37, 1
  store i32 %38, ptr %6, align 4, !tbaa !5
  br label %19, !llvm.loop !11

39:                                               ; preds = %23
  call void @gotoxy(i32 noundef 0, i32 noundef 3)
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

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 = { "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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; 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 [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [22 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @gotoxy(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @printmonth(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  tail call void @gotoxy(i32 noundef 5, i32 noundef 0)
  %3 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  tail call void @gotoxy(i32 noundef 10, i32 noundef 2)
  %4 = icmp sgt i32 %1, 1
  br i1 %4, label %.lr.ph, label %.preheader

.preheader:                                       ; preds = %.lr.ph, %2
  %.not12 = icmp slt i32 %0, 1
  br i1 %.not12, label %._crit_edge, label %.lr.ph14

.lr.ph14:                                         ; preds = %.preheader
  %5 = add i32 %1, -1
  br label %8

.lr.ph:                                           ; preds = %2, %.lr.ph
  %.0911 = phi i32 [ %7, %.lr.ph ], [ 1, %2 ]
  %6 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  %7 = add nuw nsw i32 %.0911, 1
  %exitcond.not = icmp eq i32 %7, %1
  br i1 %exitcond.not, label %.preheader, label %.lr.ph, !llvm.loop !5

._crit_edge:                                      ; preds = %15, %.preheader
  tail call void @gotoxy(i32 noundef 0, i32 noundef 3)
  ret void

8:                                                ; preds = %.lr.ph14, %15
  %.013 = phi i32 [ 1, %.lr.ph14 ], [ %16, %15 ]
  %9 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4, i32 noundef %.013)
  %10 = add i32 %5, %.013
  %11 = srem i32 %10, 7
  %12 = icmp eq i32 %11, 0
  br i1 %12, label %13, label %15

13:                                               ; preds = %8
  %14 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  tail call void @gotoxy(i32 noundef 10, i32 noundef 0)
  br label %15

15:                                               ; preds = %8, %13
  %16 = add nuw i32 %.013, 1
  %exitcond15.not = icmp eq i32 %.013, %0
  br i1 %exitcond15.not, label %._crit_edge, label %8, !llvm.loop !7
}

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 = { 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" }

!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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = distinct !{!7, !6}


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