; LLVM IR from lzyrapx/Competitive-Programming :: ACdream/1017（网络流sap）.ll (Z7addEdgeiii)

; 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"

%struct.Edge = type { i32, i32, i32 }

@head = external dso_local global [50010 x i32], align 16
@idx = external dso_local global i32, align 4
@edge = external dso_local global [501010 x %struct.Edge], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z7addEdgeiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  %7 = load i32, ptr %5, align 4, !tbaa !5
  %8 = load i32, ptr @idx, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %9
  %11 = getelementptr inbounds %struct.Edge, ptr %10, i32 0, i32 0
  store i32 %7, ptr %11, align 4, !tbaa !9
  %12 = load i32, ptr %6, align 4, !tbaa !5
  %13 = load i32, ptr @idx, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %14
  %16 = getelementptr inbounds %struct.Edge, ptr %15, i32 0, i32 1
  store i32 %12, ptr %16, align 4, !tbaa !11
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [50010 x i32], ptr @head, i64 0, i64 %18
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = load i32, ptr @idx, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %22
  %24 = getelementptr inbounds %struct.Edge, ptr %23, i32 0, i32 2
  store i32 %20, ptr %24, align 4, !tbaa !12
  %25 = load i32, ptr @idx, align 4, !tbaa !5
  %26 = add nsw i32 %25, 1
  store i32 %26, ptr @idx, align 4, !tbaa !5
  %27 = load i32, ptr %4, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [50010 x i32], ptr @head, i64 0, i64 %28
  store i32 %25, ptr %29, align 4, !tbaa !5
  %30 = load i32, ptr %4, align 4, !tbaa !5
  %31 = load i32, ptr @idx, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %32
  %34 = getelementptr inbounds %struct.Edge, ptr %33, i32 0, i32 0
  store i32 %30, ptr %34, align 4, !tbaa !9
  %35 = load i32, ptr @idx, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %36
  %38 = getelementptr inbounds %struct.Edge, ptr %37, i32 0, i32 1
  store i32 0, ptr %38, align 4, !tbaa !11
  %39 = load i32, ptr %5, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [50010 x i32], ptr @head, i64 0, i64 %40
  %42 = load i32, ptr %41, align 4, !tbaa !5
  %43 = load i32, ptr @idx, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %44
  %46 = getelementptr inbounds %struct.Edge, ptr %45, i32 0, i32 2
  store i32 %42, ptr %46, align 4, !tbaa !12
  %47 = load i32, ptr @idx, align 4, !tbaa !5
  %48 = add nsw i32 %47, 1
  store i32 %48, ptr @idx, align 4, !tbaa !5
  %49 = load i32, ptr %5, align 4, !tbaa !5
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds [50010 x i32], ptr @head, i64 0, i64 %50
  store i32 %47, ptr %51, align 4, !tbaa !5
  ret void
}

attributes #0 = { mustprogress 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++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTS4Edge", !6, i64 0, !6, i64 4, !6, i64 8}
!11 = !{!10, !6, i64 4}
!12 = !{!10, !6, i64 8}


; 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"

%struct.Edge = type { i32, i32, i32 }

@head = external dso_local local_unnamed_addr global [50010 x i32], align 16
@idx = external dso_local local_unnamed_addr global i32, align 4
@edge = external dso_local local_unnamed_addr global [501010 x %struct.Edge], align 16

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @_Z7addEdgeiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = load i32, ptr @idx, align 4, !tbaa !5
  %5 = sext i32 %4 to i64
  %6 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %5
  store i32 %1, ptr %6, align 4, !tbaa !9
  %7 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %5, i32 1
  store i32 %2, ptr %7, align 4, !tbaa !11
  %8 = sext i32 %0 to i64
  %9 = getelementptr inbounds [50010 x i32], ptr @head, i64 0, i64 %8
  %10 = load i32, ptr %9, align 4, !tbaa !5
  %11 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %5, i32 2
  store i32 %10, ptr %11, align 4, !tbaa !12
  %12 = add nsw i32 %4, 1
  store i32 %4, ptr %9, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %13
  store i32 %0, ptr %14, align 4, !tbaa !9
  %15 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %13, i32 1
  store i32 0, ptr %15, align 4, !tbaa !11
  %16 = sext i32 %1 to i64
  %17 = getelementptr inbounds [50010 x i32], ptr @head, i64 0, i64 %16
  %18 = load i32, ptr %17, align 4, !tbaa !5
  %19 = getelementptr inbounds [501010 x %struct.Edge], ptr @edge, i64 0, i64 %13, i32 2
  store i32 %18, ptr %19, align 4, !tbaa !12
  %20 = add nsw i32 %4, 2
  store i32 %20, ptr @idx, align 4, !tbaa !5
  store i32 %12, ptr %17, align 4, !tbaa !5
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: none) 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++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTS4Edge", !6, i64 0, !6, i64 4, !6, i64 8}
!11 = !{!10, !6, i64 4}
!12 = !{!10, !6, i64 8}


; Effective O3 passes: DSEPass,EarlyCSEPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass