; LLVM IR from lolosssss/leetcode :: c (38_count_and_say)

; 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 [9 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local ptr @countAndSay(i32 noundef) #0

; 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

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #4
  store ptr null, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 1, ptr %3, align 4, !tbaa !9
  br label %4

4:                                                ; preds = %15, %0
  %5 = load i32, ptr %3, align 4, !tbaa !9
  %6 = icmp slt i32 %5, 30
  br i1 %6, label %8, label %7

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

8:                                                ; preds = %4
  %9 = load i32, ptr %3, align 4, !tbaa !9
  %10 = call ptr @countAndSay(i32 noundef %9)
  store ptr %10, ptr %2, align 8, !tbaa !5
  %11 = load i32, ptr %3, align 4, !tbaa !9
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %11, ptr noundef %12)
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  call void @free(ptr noundef %14) #4
  br label %15

15:                                               ; preds = %8
  %16 = load i32, ptr %3, align 4, !tbaa !9
  %17 = add nsw i32 %16, 1
  store i32 %17, ptr %3, align 4, !tbaa !9
  br label %4, !llvm.loop !11

18:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #4
  ret i32 0
}

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

; Function Attrs: nounwind
declare void @free(ptr noundef) #3

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 = { "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 "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 = !{!"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 = 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"

@.str = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local ptr @countAndSay(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = tail call ptr @countAndSay(i32 noundef 1)
  %2 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 1, ptr noundef %1)
  tail call void @free(ptr noundef %1) #3
  %3 = tail call ptr @countAndSay(i32 noundef 2)
  %4 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 2, ptr noundef %3)
  tail call void @free(ptr noundef %3) #3
  %5 = tail call ptr @countAndSay(i32 noundef 3)
  %6 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 3, ptr noundef %5)
  tail call void @free(ptr noundef %5) #3
  %7 = tail call ptr @countAndSay(i32 noundef 4)
  %8 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 4, ptr noundef %7)
  tail call void @free(ptr noundef %7) #3
  %9 = tail call ptr @countAndSay(i32 noundef 5)
  %10 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 5, ptr noundef %9)
  tail call void @free(ptr noundef %9) #3
  %11 = tail call ptr @countAndSay(i32 noundef 6)
  %12 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 6, ptr noundef %11)
  tail call void @free(ptr noundef %11) #3
  %13 = tail call ptr @countAndSay(i32 noundef 7)
  %14 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 7, ptr noundef %13)
  tail call void @free(ptr noundef %13) #3
  %15 = tail call ptr @countAndSay(i32 noundef 8)
  %16 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 8, ptr noundef %15)
  tail call void @free(ptr noundef %15) #3
  %17 = tail call ptr @countAndSay(i32 noundef 9)
  %18 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 9, ptr noundef %17)
  tail call void @free(ptr noundef %17) #3
  %19 = tail call ptr @countAndSay(i32 noundef 10)
  %20 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 10, ptr noundef %19)
  tail call void @free(ptr noundef %19) #3
  %21 = tail call ptr @countAndSay(i32 noundef 11)
  %22 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 11, ptr noundef %21)
  tail call void @free(ptr noundef %21) #3
  %23 = tail call ptr @countAndSay(i32 noundef 12)
  %24 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 12, ptr noundef %23)
  tail call void @free(ptr noundef %23) #3
  %25 = tail call ptr @countAndSay(i32 noundef 13)
  %26 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 13, ptr noundef %25)
  tail call void @free(ptr noundef %25) #3
  %27 = tail call ptr @countAndSay(i32 noundef 14)
  %28 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 14, ptr noundef %27)
  tail call void @free(ptr noundef %27) #3
  %29 = tail call ptr @countAndSay(i32 noundef 15)
  %30 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 15, ptr noundef %29)
  tail call void @free(ptr noundef %29) #3
  %31 = tail call ptr @countAndSay(i32 noundef 16)
  %32 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 16, ptr noundef %31)
  tail call void @free(ptr noundef %31) #3
  %33 = tail call ptr @countAndSay(i32 noundef 17)
  %34 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 17, ptr noundef %33)
  tail call void @free(ptr noundef %33) #3
  %35 = tail call ptr @countAndSay(i32 noundef 18)
  %36 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 18, ptr noundef %35)
  tail call void @free(ptr noundef %35) #3
  %37 = tail call ptr @countAndSay(i32 noundef 19)
  %38 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 19, ptr noundef %37)
  tail call void @free(ptr noundef %37) #3
  %39 = tail call ptr @countAndSay(i32 noundef 20)
  %40 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 20, ptr noundef %39)
  tail call void @free(ptr noundef %39) #3
  %41 = tail call ptr @countAndSay(i32 noundef 21)
  %42 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 21, ptr noundef %41)
  tail call void @free(ptr noundef %41) #3
  %43 = tail call ptr @countAndSay(i32 noundef 22)
  %44 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 22, ptr noundef %43)
  tail call void @free(ptr noundef %43) #3
  %45 = tail call ptr @countAndSay(i32 noundef 23)
  %46 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 23, ptr noundef %45)
  tail call void @free(ptr noundef %45) #3
  %47 = tail call ptr @countAndSay(i32 noundef 24)
  %48 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 24, ptr noundef %47)
  tail call void @free(ptr noundef %47) #3
  %49 = tail call ptr @countAndSay(i32 noundef 25)
  %50 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 25, ptr noundef %49)
  tail call void @free(ptr noundef %49) #3
  %51 = tail call ptr @countAndSay(i32 noundef 26)
  %52 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 26, ptr noundef %51)
  tail call void @free(ptr noundef %51) #3
  %53 = tail call ptr @countAndSay(i32 noundef 27)
  %54 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 27, ptr noundef %53)
  tail call void @free(ptr noundef %53) #3
  %55 = tail call ptr @countAndSay(i32 noundef 28)
  %56 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 28, ptr noundef %55)
  tail call void @free(ptr noundef %55) #3
  %57 = tail call ptr @countAndSay(i32 noundef 29)
  %58 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 29, ptr noundef %57)
  tail call void @free(ptr noundef %57) #3
  ret i32 0
}

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

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #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 = { 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 #2 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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)"}


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass