; LLVM IR from lionsoul2014/friso :: src (tst-split)

; 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.string_split_entry = type { ptr, i32, ptr, i32, i32 }

@.str = external hidden unnamed_addr constant [117 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [11 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca [128 x i8], align 16
  %8 = alloca ptr, align 8
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store ptr @.str, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 128, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %9 = load ptr, ptr %6, align 8, !tbaa !9
  %10 = call ptr @new_string_split(ptr noundef @.str.1, ptr noundef %9)
  store ptr %10, ptr %8, align 8, !tbaa !9
  %11 = load ptr, ptr %8, align 8, !tbaa !9
  %12 = getelementptr inbounds %struct.string_split_entry, ptr %11, i32 0, i32 4
  %13 = load i32, ptr %12, align 4, !tbaa !11
  %14 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %13)
  %15 = load ptr, ptr %8, align 8, !tbaa !9
  %16 = getelementptr inbounds %struct.string_split_entry, ptr %15, i32 0, i32 1
  %17 = load i32, ptr %16, align 8, !tbaa !13
  %18 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i32 noundef %17)
  %19 = load ptr, ptr %8, align 8, !tbaa !9
  %20 = getelementptr inbounds %struct.string_split_entry, ptr %19, i32 0, i32 3
  %21 = load i32, ptr %20, align 8, !tbaa !14
  %22 = call i32 (ptr, ...) @printf(ptr noundef @.str.4, i32 noundef %21)
  br label %23

23:                                               ; preds = %28, %2
  %24 = load ptr, ptr %8, align 8, !tbaa !9
  %25 = getelementptr inbounds [128 x i8], ptr %7, i64 0, i64 0
  %26 = call ptr @string_split_next(ptr noundef %24, ptr noundef %25)
  %27 = icmp ne ptr %26, null
  br i1 %27, label %28, label %31

28:                                               ; preds = %23
  %29 = getelementptr inbounds [128 x i8], ptr %7, i64 0, i64 0
  %30 = call i32 (ptr, ...) @printf(ptr noundef @.str.5, ptr noundef %29)
  br label %23, !llvm.loop !15

31:                                               ; preds = %23
  %32 = load ptr, ptr %8, align 8, !tbaa !9
  call void @free_string_split(ptr noundef %32)
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 128, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  ret i32 0
}

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

declare ptr @new_string_split(ptr noundef, ptr noundef) #2

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

declare ptr @string_split_next(ptr noundef, ptr noundef) #2

declare void @free_string_split(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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 28}
!12 = !{!"", !10, i64 0, !6, i64 8, !10, i64 16, !6, i64 24, !6, i64 28}
!13 = !{!12, !6, i64 8}
!14 = !{!12, !6, i64 24}
!15 = distinct !{!15, !16}
!16 = !{!"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 [117 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [16 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [11 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #0 {
  %3 = alloca [128 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 128, ptr nonnull %3) #4
  %4 = tail call ptr @new_string_split(ptr noundef nonnull @.str.1, ptr noundef nonnull @.str) #4
  %5 = getelementptr inbounds i8, ptr %4, i64 28
  %6 = load i32, ptr %5, align 4, !tbaa !5
  %7 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i32 noundef %6)
  %8 = getelementptr inbounds i8, ptr %4, i64 8
  %9 = load i32, ptr %8, align 8, !tbaa !11
  %10 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i32 noundef %9)
  %11 = getelementptr inbounds i8, ptr %4, i64 24
  %12 = load i32, ptr %11, align 8, !tbaa !12
  %13 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4, i32 noundef %12)
  %14 = call ptr @string_split_next(ptr noundef %4, ptr noundef nonnull %3) #4
  %.not6 = icmp eq ptr %14, null
  br i1 %.not6, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %.lr.ph
  %15 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5, ptr noundef nonnull %3)
  %16 = call ptr @string_split_next(ptr noundef %4, ptr noundef nonnull %3) #4
  %.not = icmp eq ptr %16, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !13

._crit_edge:                                      ; preds = %.lr.ph, %2
  call void @free_string_split(ptr noundef %4) #4
  call void @llvm.lifetime.end.p0(i64 128, ptr nonnull %3) #4
  ret i32 0
}

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

declare ptr @new_string_split(ptr noundef, ptr noundef) local_unnamed_addr #2

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

declare ptr @string_split_next(ptr noundef, ptr noundef) local_unnamed_addr #2

declare void @free_string_split(ptr noundef) local_unnamed_addr #2

; 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, !10, i64 28}
!6 = !{!"", !7, i64 0, !10, i64 8, !7, i64 16, !10, i64 24, !10, i64 28}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!6, !10, i64 24}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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