; LLVM IR from thalium/icebox :: third_party/virtualbox/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal (GetElementsFromRequest)

; 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"

@.str = external hidden unnamed_addr constant [155 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [6 x i32], align 4
@.str.11 = external hidden unnamed_addr constant [2 x i32], align 4
@.str.24 = external hidden unnamed_addr constant [27 x i8], align 1
@.str.25 = external hidden unnamed_addr constant [9 x i32], align 4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare zeroext i8 @DebugAssertEnabled() #1

declare void @DebugAssert(ptr noundef, i64 noundef, ptr noundef) #1

declare ptr @StrStr(ptr noundef, ptr noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local zeroext i8 @GetElementsFromRequest(ptr noundef %0) #2 {
  %2 = alloca i8, align 1
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = call ptr @StrStr(ptr noundef %6, ptr noundef @.str.5)
  store ptr %7, ptr %4, align 8, !tbaa !5
  br label %8

8:                                                ; preds = %1
  %9 = call zeroext i8 @DebugAssertEnabled()
  %10 = icmp ne i8 %9, 0
  br i1 %10, label %11, label %16

11:                                               ; preds = %8
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %15, label %14

14:                                               ; preds = %11
  call void @DebugAssert(ptr noundef @.str, i64 noundef 1250, ptr noundef @.str.24)
  br label %15

15:                                               ; preds = %14, %11
  br label %16

16:                                               ; preds = %15, %8
  br label %17

17:                                               ; preds = %16
  br label %18

18:                                               ; preds = %17
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = call ptr @StrStr(ptr noundef %19, ptr noundef @.str.25)
  %21 = icmp ne ptr %20, null
  br i1 %21, label %26, label %22

22:                                               ; preds = %18
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = call ptr @StrStr(ptr noundef %23, ptr noundef @.str.11)
  %25 = icmp ne ptr %24, null
  br i1 %25, label %26, label %27

26:                                               ; preds = %22, %18
  store i8 1, ptr %2, align 1
  store i32 1, ptr %5, align 4
  br label %28

27:                                               ; preds = %22
  store i8 0, ptr %2, align 1
  store i32 1, ptr %5, align 4
  br label %28

28:                                               ; preds = %27, %26
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  %29 = load i8, ptr %2, align 1
  ret i8 %29
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 #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"}


; 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 [155 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [6 x i32], align 4
@.str.11 = external hidden unnamed_addr constant [2 x i32], align 4
@.str.24 = external hidden unnamed_addr constant [27 x i8], align 1
@.str.25 = external hidden unnamed_addr constant [9 x i32], align 4

declare zeroext i8 @DebugAssertEnabled() local_unnamed_addr #0

declare void @DebugAssert(ptr noundef, i64 noundef, ptr noundef) local_unnamed_addr #0

declare ptr @StrStr(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local zeroext range(i8 0, 2) i8 @GetElementsFromRequest(ptr noundef %0) local_unnamed_addr #1 {
  %2 = tail call ptr @StrStr(ptr noundef %0, ptr noundef nonnull @.str.5) #2
  %3 = tail call zeroext i8 @DebugAssertEnabled() #2
  %4 = icmp eq i8 %3, 0
  %5 = icmp ne ptr %2, null
  %or.cond = select i1 %4, i1 true, i1 %5
  br i1 %or.cond, label %7, label %6

6:                                                ; preds = %1
  tail call void @DebugAssert(ptr noundef nonnull @.str, i64 noundef 1250, ptr noundef nonnull @.str.24) #2
  br label %7

7:                                                ; preds = %6, %1
  %8 = tail call ptr @StrStr(ptr noundef %2, ptr noundef nonnull @.str.25) #2
  %.not = icmp eq ptr %8, null
  br i1 %.not, label %9, label %11

9:                                                ; preds = %7
  %10 = tail call ptr @StrStr(ptr noundef %2, ptr noundef nonnull @.str.11) #2
  %.not5 = icmp ne ptr %10, null
  %spec.select = zext i1 %.not5 to i8
  br label %11

11:                                               ; preds = %9, %7
  %.0 = phi i8 [ 1, %7 ], [ %spec.select, %9 ]
  ret i8 %.0
}

attributes #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 = { 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 #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)"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass