; LLVM IR from chirag-singhal/Coding-Interview-101 :: Miscellaneous/Labs/Lab3 (multiQ)

; 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

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

5:                                                ; preds = %18, %1
  %6 = load i32, ptr %4, align 4, !tbaa !9
  %7 = icmp slt i32 %6, 10
  br i1 %7, label %9, label %8

8:                                                ; preds = %5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  br label %21

9:                                                ; preds = %5
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = load i32, ptr %4, align 4, !tbaa !9
  %12 = sext i32 %11 to i64
  %13 = getelementptr inbounds ptr, ptr %10, i64 %12
  %14 = load ptr, ptr %13, align 8, !tbaa !5
  %15 = call i32 @lengthQ(ptr noundef %14)
  %16 = load i32, ptr %3, align 4, !tbaa !9
  %17 = add nsw i32 %16, %15
  store i32 %17, ptr %3, align 4, !tbaa !9
  br label %18

18:                                               ; preds = %9
  %19 = load i32, ptr %4, align 4, !tbaa !9
  %20 = add nsw i32 %19, 1
  store i32 %20, ptr %4, align 4, !tbaa !9
  br label %5, !llvm.loop !11

21:                                               ; preds = %8
  %22 = load i32, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret i32 %22
}

declare i32 @lengthQ(ptr noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!"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"

; Function Attrs: nounwind uwtable
define dso_local i32 @sizeMQ(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %3 = tail call i32 @lengthQ(ptr noundef %2) #2
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = tail call i32 @lengthQ(ptr noundef %5) #2
  %7 = add nsw i32 %6, %3
  %8 = getelementptr inbounds i8, ptr %0, i64 16
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %10 = tail call i32 @lengthQ(ptr noundef %9) #2
  %11 = add nsw i32 %10, %7
  %12 = getelementptr inbounds i8, ptr %0, i64 24
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  %14 = tail call i32 @lengthQ(ptr noundef %13) #2
  %15 = add nsw i32 %14, %11
  %16 = getelementptr inbounds i8, ptr %0, i64 32
  %17 = load ptr, ptr %16, align 8, !tbaa !5
  %18 = tail call i32 @lengthQ(ptr noundef %17) #2
  %19 = add nsw i32 %18, %15
  %20 = getelementptr inbounds i8, ptr %0, i64 40
  %21 = load ptr, ptr %20, align 8, !tbaa !5
  %22 = tail call i32 @lengthQ(ptr noundef %21) #2
  %23 = add nsw i32 %22, %19
  %24 = getelementptr inbounds i8, ptr %0, i64 48
  %25 = load ptr, ptr %24, align 8, !tbaa !5
  %26 = tail call i32 @lengthQ(ptr noundef %25) #2
  %27 = add nsw i32 %26, %23
  %28 = getelementptr inbounds i8, ptr %0, i64 56
  %29 = load ptr, ptr %28, align 8, !tbaa !5
  %30 = tail call i32 @lengthQ(ptr noundef %29) #2
  %31 = add nsw i32 %30, %27
  %32 = getelementptr inbounds i8, ptr %0, i64 64
  %33 = load ptr, ptr %32, align 8, !tbaa !5
  %34 = tail call i32 @lengthQ(ptr noundef %33) #2
  %35 = add nsw i32 %34, %31
  %36 = getelementptr inbounds i8, ptr %0, i64 72
  %37 = load ptr, ptr %36, align 8, !tbaa !5
  %38 = tail call i32 @lengthQ(ptr noundef %37) #2
  %39 = add nsw i32 %38, %35
  ret i32 %39
}

declare i32 @lengthQ(ptr noundef) local_unnamed_addr #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 = { "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 = { 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"}


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