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

; 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 }

; Function Attrs: nounwind uwtable
declare dso_local { i64, i32 } @mrb_obj_iv_get(ptr noundef, ptr noundef, i32 noundef) #0

; Function Attrs: inlinehint nounwind uwtable
declare hidden { i64, i32 } @mrb_nil_value() #1

; Function Attrs: nounwind uwtable
define dso_local { i64, i32 } @mrb_iv_get(ptr noundef %0, i64 %1, i32 %2, i32 noundef %3) #0 {
  %5 = alloca %struct.mrb_value, align 8
  %6 = alloca %struct.mrb_value, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = getelementptr inbounds { i64, i32 }, ptr %6, i32 0, i32 0
  store i64 %1, ptr %9, align 8
  %10 = getelementptr inbounds { i64, i32 }, ptr %6, i32 0, i32 1
  store i32 %2, ptr %10, align 8
  store ptr %0, ptr %7, align 8, !tbaa !5
  store i32 %3, ptr %8, align 4, !tbaa !9
  %11 = getelementptr inbounds { i64, i32 }, ptr %6, i32 0, i32 0
  %12 = load i64, ptr %11, align 8
  %13 = getelementptr inbounds { i64, i32 }, ptr %6, i32 0, i32 1
  %14 = load i32, ptr %13, align 8
  %15 = call zeroext i8 @obj_iv_p(i64 %12, i32 %14)
  %16 = icmp ne i8 %15, 0
  br i1 %16, label %17, label %27

17:                                               ; preds = %4
  %18 = load ptr, ptr %7, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.mrb_value, ptr %6, i32 0, i32 0
  %20 = load ptr, ptr %19, align 8, !tbaa !11
  %21 = load i32, ptr %8, align 4, !tbaa !9
  %22 = call { i64, i32 } @mrb_obj_iv_get(ptr noundef %18, ptr noundef %20, i32 noundef %21)
  %23 = getelementptr inbounds { i64, i32 }, ptr %5, i32 0, i32 0
  %24 = extractvalue { i64, i32 } %22, 0
  store i64 %24, ptr %23, align 8
  %25 = getelementptr inbounds { i64, i32 }, ptr %5, i32 0, i32 1
  %26 = extractvalue { i64, i32 } %22, 1
  store i32 %26, ptr %25, align 8
  br label %33

27:                                               ; preds = %4
  %28 = call { i64, i32 } @mrb_nil_value()
  %29 = getelementptr inbounds { i64, i32 }, ptr %5, i32 0, i32 0
  %30 = extractvalue { i64, i32 } %28, 0
  store i64 %30, ptr %29, align 8
  %31 = getelementptr inbounds { i64, i32 }, ptr %5, i32 0, i32 1
  %32 = extractvalue { i64, i32 } %28, 1
  store i32 %32, ptr %31, align 8
  br label %33

33:                                               ; preds = %27, %17
  %34 = load { i64, i32 }, ptr %5, align 8
  ret { i64, i32 } %34
}

; Function Attrs: nounwind uwtable
declare hidden zeroext i8 @obj_iv_p(i64, i32) #0

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 = { inlinehint 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 = !{!"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 = !{!7, !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"

; Function Attrs: nounwind uwtable
declare dso_local { i64, i32 } @mrb_obj_iv_get(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: inlinehint nounwind uwtable
declare hidden { i64, i32 } @mrb_nil_value() local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local { i64, i32 } @mrb_iv_get(ptr noundef %0, i64 %1, i32 %2, i32 noundef %3) local_unnamed_addr #0 {
  %5 = tail call zeroext i8 @obj_iv_p(i64 %1, i32 %2)
  %.not = icmp eq i8 %5, 0
  br i1 %.not, label %9, label %6

6:                                                ; preds = %4
  %7 = inttoptr i64 %1 to ptr
  %8 = tail call { i64, i32 } @mrb_obj_iv_get(ptr noundef %0, ptr noundef %7, i32 noundef %3)
  br label %11

9:                                                ; preds = %4
  %10 = tail call { i64, i32 } @mrb_nil_value()
  br label %11

11:                                               ; preds = %9, %6
  %.pn = phi { i64, i32 } [ %8, %6 ], [ %10, %9 ]
  ret { i64, i32 } %.pn
}

; Function Attrs: nounwind uwtable
declare hidden zeroext i8 @obj_iv_p(i64, i32) local_unnamed_addr #0

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 = { inlinehint 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)"}


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