; LLVM IR from yudi-matsuzake/libgenerics :: doc/examples (graph0)

; 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.graph_t = type { i64, i64, i64, ptr, ptr }
%struct.queue_t = type { i64, i64, ptr, ptr }
%struct.qnode_t = type { ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [1 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1

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

7:                                                ; preds = %52, %1
  %8 = load i64, ptr %3, align 8, !tbaa !9
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.graph_t, ptr %9, i32 0, i32 0
  %11 = load i64, ptr %10, align 8, !tbaa !11
  %12 = icmp ult i64 %8, %11
  br i1 %12, label %13, label %55

13:                                               ; preds = %7
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = load i64, ptr %3, align 8, !tbaa !9
  %16 = call i32 @graph_get_label_at(ptr noundef %14, i64 noundef %15, ptr noundef %4)
  %17 = load i32, ptr %4, align 4, !tbaa !13
  %18 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %17)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.graph_t, ptr %19, i32 0, i32 3
  %21 = load ptr, ptr %20, align 8, !tbaa !15
  %22 = load i64, ptr %3, align 8, !tbaa !9
  %23 = getelementptr inbounds %struct.queue_t, ptr %21, i64 %22
  %24 = getelementptr inbounds %struct.queue_t, ptr %23, i32 0, i32 2
  %25 = load ptr, ptr %24, align 8, !tbaa !16
  store ptr %25, ptr %5, align 8, !tbaa !5
  br label %26

26:                                               ; preds = %46, %13
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = icmp ne ptr %27, null
  br i1 %28, label %29, label %50

29:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  %30 = load ptr, ptr %5, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.qnode_t, ptr %30, i32 0, i32 2
  %32 = load ptr, ptr %31, align 8, !tbaa !18
  %33 = load i32, ptr %32, align 4, !tbaa !13
  store i32 %33, ptr %6, align 4, !tbaa !13
  %34 = load ptr, ptr %2, align 8, !tbaa !5
  %35 = load i32, ptr %6, align 4, !tbaa !13
  %36 = sext i32 %35 to i64
  %37 = call i32 @graph_get_label_at(ptr noundef %34, i64 noundef %36, ptr noundef %4)
  %38 = load i32, ptr %4, align 4, !tbaa !13
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.qnode_t, ptr %39, i32 0, i32 0
  %41 = load ptr, ptr %40, align 8, !tbaa !20
  %42 = icmp ne ptr %41, null
  %43 = zext i1 %42 to i64
  %44 = select i1 %42, ptr @.str.2, ptr @.str.3
  %45 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %38, ptr noundef %44)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %46

46:                                               ; preds = %29
  %47 = load ptr, ptr %5, align 8, !tbaa !5
  %48 = getelementptr inbounds %struct.qnode_t, ptr %47, i32 0, i32 0
  %49 = load ptr, ptr %48, align 8, !tbaa !20
  store ptr %49, ptr %5, align 8, !tbaa !5
  br label %26, !llvm.loop !21

50:                                               ; preds = %26
  %51 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  br label %52

52:                                               ; preds = %50
  %53 = load i64, ptr %3, align 8, !tbaa !9
  %54 = add i64 %53, 1
  store i64 %54, ptr %3, align 8, !tbaa !9
  br label %7, !llvm.loop !23

55:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

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

declare i32 @graph_get_label_at(ptr noundef, i64 noundef, ptr noundef) #2

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

; 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 = { "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 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"graph_t", !10, i64 0, !10, i64 8, !10, i64 16, !6, i64 24, !6, i64 32}
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !7, i64 0}
!15 = !{!12, !6, i64 24}
!16 = !{!17, !6, i64 16}
!17 = !{!"queue_t", !10, i64 0, !10, i64 8, !6, i64 16, !6, i64 24}
!18 = !{!19, !6, i64 16}
!19 = !{!"qnode_t", !6, i64 0, !6, i64 8, !6, i64 16}
!20 = !{!19, !6, i64 0}
!21 = distinct !{!21, !22}
!22 = !{!"llvm.loop.mustprogress"}
!23 = distinct !{!23, !22}


; 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.queue_t = type { i64, i64, ptr, ptr }

@.str = external hidden unnamed_addr constant [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [1 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @printf_graph(ptr noundef %0) local_unnamed_addr #0 {
  %2 = alloca i32, align 4
  %3 = load i64, ptr %0, align 8, !tbaa !5
  %.not21 = icmp eq i64 %3, 0
  br i1 %.not21, label %._crit_edge20, label %.lr.ph19

.lr.ph19:                                         ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 24
  br label %5

5:                                                ; preds = %.lr.ph19, %._crit_edge
  %.017 = phi i64 [ 0, %.lr.ph19 ], [ %21, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  %6 = call i32 @graph_get_label_at(ptr noundef nonnull %0, i64 noundef %.017, ptr noundef nonnull %2) #4
  %7 = load i32, ptr %2, align 4, !tbaa !11
  %8 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %7)
  %9 = load ptr, ptr %4, align 8, !tbaa !13
  %10 = getelementptr inbounds %struct.queue_t, ptr %9, i64 %.017, i32 2
  %.01214 = load ptr, ptr %10, align 8, !tbaa !14
  %.not15 = icmp eq ptr %.01214, null
  br i1 %.not15, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %5, %.lr.ph
  %.01216 = phi ptr [ %.012, %.lr.ph ], [ %.01214, %5 ]
  %11 = getelementptr inbounds i8, ptr %.01216, i64 16
  %12 = load ptr, ptr %11, align 8, !tbaa !15
  %13 = load i32, ptr %12, align 4, !tbaa !11
  %14 = sext i32 %13 to i64
  %15 = call i32 @graph_get_label_at(ptr noundef nonnull %0, i64 noundef %14, ptr noundef nonnull %2) #4
  %16 = load i32, ptr %2, align 4, !tbaa !11
  %17 = load ptr, ptr %.01216, align 8, !tbaa !17
  %.not13 = icmp eq ptr %17, null
  %18 = select i1 %.not13, ptr @.str.3, ptr @.str.2
  %19 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %16, ptr noundef nonnull %18)
  %.012 = load ptr, ptr %.01216, align 8, !tbaa !14
  %.not = icmp eq ptr %.012, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !18

._crit_edge:                                      ; preds = %.lr.ph, %5
  %20 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  %21 = add nuw i64 %.017, 1
  %22 = load i64, ptr %0, align 8, !tbaa !5
  %23 = icmp ult i64 %21, %22
  br i1 %23, label %5, label %._crit_edge20, !llvm.loop !20

._crit_edge20:                                    ; preds = %._crit_edge, %1
  ret void
}

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

declare i32 @graph_get_label_at(ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: mustprogress 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 = { mustprogress 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 = { 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 #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, !7, i64 0}
!6 = !{!"graph_t", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24, !10, i64 32}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !8, i64 0}
!13 = !{!6, !10, i64 24}
!14 = !{!10, !10, i64 0}
!15 = !{!16, !10, i64 16}
!16 = !{!"qnode_t", !10, i64 0, !10, i64 8, !10, i64 16}
!17 = !{!16, !10, i64 0}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.mustprogress"}
!20 = distinct !{!20, !19}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass