; LLVM IR from Mohammed-Shoaib/Coding-Problems :: HackerRank/C/Easy (E0007)

; 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"

@__const.number.nums = external hidden unnamed_addr constant [10 x ptr], align 16
@.str.10 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @number(i32 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca [10 x ptr], align 16
  %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 @llvm.lifetime.start.p0(i64 80, ptr %5) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %5, ptr align 16 @__const.number.nums, i64 80, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  %7 = load i32, ptr %3, align 4, !tbaa !5
  store i32 %7, ptr %6, align 4, !tbaa !5
  br label %8

8:                                                ; preds = %30, %2
  %9 = load i32, ptr %6, align 4, !tbaa !5
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = icmp sle i32 %9, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %33

13:                                               ; preds = %8
  %14 = load i32, ptr %6, align 4, !tbaa !5
  %15 = icmp sle i32 %14, 9
  br i1 %15, label %16, label %22

16:                                               ; preds = %13
  %17 = load i32, ptr %6, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [10 x ptr], ptr %5, i64 0, i64 %18
  %20 = load ptr, ptr %19, align 8, !tbaa !9
  %21 = call i32 (ptr, ...) @printf(ptr noundef @.str.10, ptr noundef %20)
  br label %29

22:                                               ; preds = %13
  %23 = load i32, ptr %6, align 4, !tbaa !5
  %24 = and i32 %23, 1
  %25 = icmp ne i32 %24, 0
  %26 = zext i1 %25 to i64
  %27 = select i1 %25, ptr @.str.11, ptr @.str.12
  %28 = call i32 (ptr, ...) @printf(ptr noundef @.str.10, ptr noundef %27)
  br label %29

29:                                               ; preds = %22, %16
  br label %30

30:                                               ; preds = %29
  %31 = load i32, ptr %6, align 4, !tbaa !5
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr %6, align 4, !tbaa !5
  br label %8, !llvm.loop !11

33:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 80, ptr %5) #4
  ret void
}

; 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 nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

declare i32 @printf(ptr noundef, ...) #3

; 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "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 #4 = { 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"

@__const.number.nums = external hidden unnamed_addr constant [10 x ptr], align 16
@.str.10 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local void @number(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %.not8 = icmp sgt i32 %0, %1
  br i1 %.not8, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %3 = sext i32 %0 to i64
  %4 = add i32 %1, 1
  br label %.lr.ph

._crit_edge:                                      ; preds = %14, %2
  ret void

.lr.ph:                                           ; preds = %.lr.ph.preheader, %14
  %indvars.iv = phi i64 [ %3, %.lr.ph.preheader ], [ %indvars.iv.next, %14 ]
  %5 = icmp slt i64 %indvars.iv, 10
  br i1 %5, label %6, label %10

6:                                                ; preds = %.lr.ph
  %7 = getelementptr inbounds [10 x ptr], ptr @__const.number.nums, i64 0, i64 %indvars.iv
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  %9 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.10, ptr noundef %8)
  br label %14

10:                                               ; preds = %.lr.ph
  %11 = and i64 %indvars.iv, 1
  %.not7 = icmp eq i64 %11, 0
  %12 = select i1 %.not7, ptr @.str.12, ptr @.str.11
  %13 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.10, ptr noundef nonnull %12)
  br label %14

14:                                               ; preds = %6, %10
  %indvars.iv.next = add nsw i64 %indvars.iv, 1
  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
  %exitcond.not = icmp eq i32 %4, %lftr.wideiv
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9
}

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

attributes #0 = { 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 = { 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 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !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: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass