; LLVM IR from devantler/software-engineering-f22-shared :: IOT/BudgetManagementExcercise-03-28/ESP-Project/components/components/nghttp (p)

; 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.mrb_value = type { %union.anon, i32 }
%union.anon = type { double }
%struct.mrb_state = type { ptr, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, %struct.mrb_gc, i32, ptr, [256 x i32], i64, [8 x i8], ptr, ptr, ptr, ptr, ptr, ptr, i16, i16 }
%struct.mrb_gc = type { ptr, ptr, ptr, i64, ptr, i32, i32, i32, i32, ptr, ptr, i64, i64, i32, i32, i8, i64 }

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

; Function Attrs: nounwind uwtable
define dso_local zeroext i8 @mrb_regexp_p(ptr noundef %0, i64 %1, i32 %2) #0 {
  %4 = alloca i8, align 1
  %5 = alloca %struct.mrb_value, align 8
  %6 = alloca ptr, align 8
  %7 = getelementptr inbounds { i64, i32 }, ptr %5, i32 0, i32 0
  store i64 %1, ptr %7, align 8
  %8 = getelementptr inbounds { i64, i32 }, ptr %5, i32 0, i32 1
  store i32 %2, ptr %8, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.mrb_state, ptr %9, i32 0, i32 1
  %11 = load i32, ptr %10, align 8, !tbaa !9
  %12 = and i32 %11, 1
  %13 = icmp ne i32 %12, 0
  br i1 %13, label %14, label %15

14:                                               ; preds = %3
  store i8 0, ptr %4, align 1
  br label %49

15:                                               ; preds = %3
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.mrb_state, ptr %16, i32 0, i32 1
  %18 = load i32, ptr %17, align 8, !tbaa !9
  %19 = and i32 %18, 2
  %20 = icmp ne i32 %19, 0
  br i1 %20, label %26, label %21

21:                                               ; preds = %15
  %22 = load ptr, ptr %6, align 8, !tbaa !5
  %23 = call zeroext i8 @mrb_class_defined(ptr noundef %22, ptr noundef @.str.4)
  %24 = zext i8 %23 to i32
  %25 = icmp ne i32 %24, 0
  br i1 %25, label %26, label %39

26:                                               ; preds = %21, %15
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.mrb_state, ptr %27, i32 0, i32 1
  %29 = load i32, ptr %28, align 8, !tbaa !9
  %30 = or i32 %29, 2
  store i32 %30, ptr %28, align 8, !tbaa !9
  %31 = load ptr, ptr %6, align 8, !tbaa !5
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = call ptr @mrb_class_get(ptr noundef %32, ptr noundef @.str.4)
  %34 = getelementptr inbounds { i64, i32 }, ptr %5, i32 0, i32 0
  %35 = load i64, ptr %34, align 8
  %36 = getelementptr inbounds { i64, i32 }, ptr %5, i32 0, i32 1
  %37 = load i32, ptr %36, align 8
  %38 = call zeroext i8 @mrb_obj_is_kind_of(ptr noundef %31, i64 %35, i32 %37, ptr noundef %33)
  store i8 %38, ptr %4, align 1
  br label %49

39:                                               ; preds = %21
  %40 = load ptr, ptr %6, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.mrb_state, ptr %40, i32 0, i32 1
  %42 = load i32, ptr %41, align 8, !tbaa !9
  %43 = or i32 %42, 2
  store i32 %43, ptr %41, align 8, !tbaa !9
  %44 = load ptr, ptr %6, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.mrb_state, ptr %44, i32 0, i32 1
  %46 = load i32, ptr %45, align 8, !tbaa !9
  %47 = or i32 %46, 1
  store i32 %47, ptr %45, align 8, !tbaa !9
  br label %48

48:                                               ; preds = %39
  store i8 0, ptr %4, align 1
  br label %49

49:                                               ; preds = %48, %26, %14
  %50 = load i8, ptr %4, align 1
  ret i8 %50
}

declare zeroext i8 @mrb_class_defined(ptr noundef, ptr noundef) #1

declare zeroext i8 @mrb_obj_is_kind_of(ptr noundef, i64, i32, ptr noundef) #1

declare ptr @mrb_class_get(ptr noundef, ptr noundef) #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" }

!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, !11, i64 8}
!10 = !{!"mrb_state", !6, i64 0, !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !6, i64 88, !6, i64 96, !6, i64 104, !6, i64 112, !6, i64 120, !6, i64 128, !6, i64 136, !6, i64 144, !6, i64 152, !6, i64 160, !6, i64 168, !6, i64 176, !6, i64 184, !6, i64 192, !12, i64 200, !11, i64 312, !6, i64 320, !7, i64 328, !13, i64 1352, !7, i64 1360, !6, i64 1368, !6, i64 1376, !6, i64 1384, !6, i64 1392, !6, i64 1400, !6, i64 1408, !14, i64 1416, !14, i64 1418}
!11 = !{!"int", !7, i64 0}
!12 = !{!"mrb_gc", !6, i64 0, !6, i64 8, !6, i64 16, !13, i64 24, !6, i64 32, !11, i64 40, !11, i64 44, !11, i64 48, !11, i64 52, !6, i64 56, !6, i64 64, !13, i64 72, !13, i64 80, !11, i64 88, !11, i64 92, !7, i64 96, !7, i64 96, !7, i64 96, !7, i64 96, !7, i64 96, !13, i64 104}
!13 = !{!"long", !7, i64 0}
!14 = !{!"short", !7, i64 0}


; 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.4 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local zeroext i8 @mrb_regexp_p(ptr noundef %0, i64 %1, i32 %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = load i32, ptr %4, align 8, !tbaa !5
  %6 = and i32 %5, 1
  %.not = icmp eq i32 %6, 0
  br i1 %.not, label %7, label %18

7:                                                ; preds = %3
  %8 = and i32 %5, 2
  %.not8 = icmp eq i32 %8, 0
  br i1 %.not8, label %9, label %11

9:                                                ; preds = %7
  %10 = tail call zeroext i8 @mrb_class_defined(ptr noundef nonnull %0, ptr noundef nonnull @.str.4) #2
  %.not9 = icmp eq i8 %10, 0
  %.pre = load i32, ptr %4, align 8, !tbaa !5
  br i1 %.not9, label %16, label %11

11:                                               ; preds = %9, %7
  %12 = phi i32 [ %.pre, %9 ], [ %5, %7 ]
  %13 = or i32 %12, 2
  store i32 %13, ptr %4, align 8, !tbaa !5
  %14 = tail call ptr @mrb_class_get(ptr noundef nonnull %0, ptr noundef nonnull @.str.4) #2
  %15 = tail call zeroext i8 @mrb_obj_is_kind_of(ptr noundef nonnull %0, i64 %1, i32 %2, ptr noundef %14) #2
  br label %18

16:                                               ; preds = %9
  %17 = or i32 %.pre, 3
  store i32 %17, ptr %4, align 8, !tbaa !5
  br label %18

18:                                               ; preds = %3, %16, %11
  %.0 = phi i8 [ %15, %11 ], [ 0, %16 ], [ 0, %3 ]
  ret i8 %.0
}

declare zeroext i8 @mrb_class_defined(ptr noundef, ptr noundef) local_unnamed_addr #1

declare zeroext i8 @mrb_obj_is_kind_of(ptr noundef, i64, i32, ptr noundef) local_unnamed_addr #1

declare ptr @mrb_class_get(ptr noundef, 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, !10, i64 8}
!6 = !{!"mrb_state", !7, i64 0, !10, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !7, i64 80, !7, i64 88, !7, i64 96, !7, i64 104, !7, i64 112, !7, i64 120, !7, i64 128, !7, i64 136, !7, i64 144, !7, i64 152, !7, i64 160, !7, i64 168, !7, i64 176, !7, i64 184, !7, i64 192, !11, i64 200, !10, i64 312, !7, i64 320, !8, i64 328, !12, i64 1352, !8, i64 1360, !7, i64 1368, !7, i64 1376, !7, i64 1384, !7, i64 1392, !7, i64 1400, !7, i64 1408, !13, i64 1416, !13, i64 1418}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"mrb_gc", !7, i64 0, !7, i64 8, !7, i64 16, !12, i64 24, !7, i64 32, !10, i64 40, !10, i64 44, !10, i64 48, !10, i64 52, !7, i64 56, !7, i64 64, !12, i64 72, !12, i64 80, !10, i64 88, !10, i64 92, !8, i64 96, !8, i64 96, !8, i64 96, !8, i64 96, !8, i64 96, !12, i64 104}
!12 = !{!"long", !8, i64 0}
!13 = !{!"short", !8, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass