; LLVM IR from JessonYue/LeetCodeLearning :: Array/majiyao/两数之和 (main)

; 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.1 = external hidden unnamed_addr constant [23 x i8], align 1

declare i32 @printf(ptr 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: nounwind uwtable
define dso_local void @sumArray(ptr noundef %0, i32 noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 2, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %61, %2
  %12 = load i32, ptr %6, align 4, !tbaa !9
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %11
  store i32 2, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %64

16:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds i32, ptr %17, i64 %19
  %21 = load i32, ptr %20, align 4, !tbaa !9
  store i32 %21, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  store i32 0, ptr %9, align 4, !tbaa !9
  br label %22

22:                                               ; preds = %56, %16
  %23 = load i32, ptr %9, align 4, !tbaa !9
  %24 = load i32, ptr %5, align 4, !tbaa !9
  %25 = icmp slt i32 %23, %24
  br i1 %25, label %27, label %26

26:                                               ; preds = %22
  store i32 5, ptr %7, align 4
  br label %59

27:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  %28 = load ptr, ptr %3, align 8, !tbaa !5
  %29 = load i32, ptr %9, align 4, !tbaa !9
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds i32, ptr %28, i64 %30
  %32 = load i32, ptr %31, align 4, !tbaa !9
  store i32 %32, ptr %10, align 4, !tbaa !9
  %33 = load i32, ptr %8, align 4, !tbaa !9
  %34 = load i32, ptr %10, align 4, !tbaa !9
  %35 = icmp ne i32 %33, %34
  br i1 %35, label %36, label %52

36:                                               ; preds = %27
  %37 = load i32, ptr %8, align 4, !tbaa !9
  %38 = load i32, ptr %10, align 4, !tbaa !9
  %39 = add nsw i32 %37, %38
  %40 = load i32, ptr %4, align 4, !tbaa !9
  %41 = icmp eq i32 %39, %40
  br i1 %41, label %42, label %52

42:                                               ; preds = %36
  %43 = load i32, ptr %6, align 4, !tbaa !9
  %44 = load i32, ptr %9, align 4, !tbaa !9
  %45 = icmp slt i32 %43, %44
  br i1 %45, label %46, label %52

46:                                               ; preds = %42
  %47 = load i32, ptr %6, align 4, !tbaa !9
  %48 = add nsw i32 %47, 1
  %49 = load i32, ptr %9, align 4, !tbaa !9
  %50 = add nsw i32 %49, 1
  %51 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %48, i32 noundef %50)
  store i32 5, ptr %7, align 4
  br label %53

52:                                               ; preds = %42, %36, %27
  store i32 0, ptr %7, align 4
  br label %53

53:                                               ; preds = %52, %46
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  %54 = load i32, ptr %7, align 4
  switch i32 %54, label %59 [
    i32 0, label %55
  ]

55:                                               ; preds = %53
  br label %56

56:                                               ; preds = %55
  %57 = load i32, ptr %9, align 4, !tbaa !9
  %58 = add nsw i32 %57, 1
  store i32 %58, ptr %9, align 4, !tbaa !9
  br label %22, !llvm.loop !11

59:                                               ; preds = %53, %26
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  br label %60

60:                                               ; preds = %59
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %61

61:                                               ; preds = %60
  %62 = load i32, ptr %6, align 4, !tbaa !9
  %63 = add nsw i32 %62, 1
  store i32 %63, ptr %6, align 4, !tbaa !9
  br label %11, !llvm.loop !13

64:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret void
}

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

attributes #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 = { 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 #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"}
!13 = distinct !{!13, !12}


; 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.1 = external hidden unnamed_addr constant [23 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: nofree nounwind uwtable
define dso_local void @sumArray(ptr nocapture noundef readonly %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = load i32, ptr %0, align 4, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 4
  %5 = load i32, ptr %4, align 4, !tbaa !5
  %.not.1 = icmp ne i32 %3, %5
  %6 = add nsw i32 %5, %3
  %7 = icmp eq i32 %6, %1
  %or.cond.1 = select i1 %.not.1, i1 %7, i1 false
  br i1 %or.cond.1, label %.critedge, label %.loopexit.1

.critedge:                                        ; preds = %2
  %8 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef 1, i32 noundef 2)
  br label %.loopexit.1

.loopexit.1:                                      ; preds = %.critedge, %2
  ret void
}

attributes #0 = { 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 #1 = { 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" }

!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"}


; Effective O3 passes: GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyPass,PostOrderFunctionAttrsPass,ReassociatePass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass