; LLVM IR from thalium/icebox :: third_party/virtualbox/src/VBox/Devices/EFI/Firmware/MdePkg/Library (SmBusReadBlock)

; 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 [152 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [37 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [42 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [23 x i8], align 1

declare zeroext i8 @DebugAssertEnabled() #0

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

; Function Attrs: nounwind uwtable
define dso_local i64 @SmBusReadBlock(i64 noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca i64, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store i64 %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !9
  br label %7

7:                                                ; preds = %3
  %8 = call zeroext i8 @DebugAssertEnabled()
  %9 = icmp ne i8 %8, 0
  br i1 %9, label %10, label %15

10:                                               ; preds = %7
  %11 = load ptr, ptr %5, align 8, !tbaa !9
  %12 = icmp ne ptr %11, null
  br i1 %12, label %14, label %13

13:                                               ; preds = %10
  call void @DebugAssert(ptr noundef @.str, i64 noundef 440, ptr noundef @.str.5)
  br label %14

14:                                               ; preds = %13, %10
  br label %15

15:                                               ; preds = %14, %7
  br label %16

16:                                               ; preds = %15
  br label %17

17:                                               ; preds = %16
  %18 = call zeroext i8 @DebugAssertEnabled()
  %19 = icmp ne i8 %18, 0
  br i1 %19, label %20, label %27

20:                                               ; preds = %17
  %21 = load i64, ptr %4, align 8, !tbaa !5
  %22 = lshr i64 %21, 16
  %23 = and i64 %22, 63
  %24 = icmp eq i64 %23, 0
  br i1 %24, label %26, label %25

25:                                               ; preds = %20
  call void @DebugAssert(ptr noundef @.str, i64 noundef 441, ptr noundef @.str.3)
  br label %26

26:                                               ; preds = %25, %20
  br label %27

27:                                               ; preds = %26, %17
  br label %28

28:                                               ; preds = %27
  br label %29

29:                                               ; preds = %28
  %30 = call zeroext i8 @DebugAssertEnabled()
  %31 = icmp ne i8 %30, 0
  br i1 %31, label %32, label %38

32:                                               ; preds = %29
  %33 = load i64, ptr %4, align 8, !tbaa !5
  %34 = and i64 %33, -8388607
  %35 = icmp eq i64 %34, 0
  br i1 %35, label %37, label %36

36:                                               ; preds = %32
  call void @DebugAssert(ptr noundef @.str, i64 noundef 442, ptr noundef @.str.4)
  br label %37

37:                                               ; preds = %36, %32
  br label %38

38:                                               ; preds = %37, %29
  br label %39

39:                                               ; preds = %38
  %40 = load ptr, ptr %6, align 8, !tbaa !9
  %41 = icmp ne ptr %40, null
  br i1 %41, label %42, label %44

42:                                               ; preds = %39
  %43 = load ptr, ptr %6, align 8, !tbaa !9
  store i64 -9223372036854775805, ptr %43, align 8, !tbaa !5
  br label %44

44:                                               ; preds = %42, %39
  ret i64 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" }

!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 = !{!"long long", !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}


; 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 [152 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [37 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [42 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [23 x i8], align 1

declare zeroext i8 @DebugAssertEnabled() local_unnamed_addr #0

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

; Function Attrs: nounwind uwtable
define dso_local noundef i64 @SmBusReadBlock(i64 noundef %0, ptr noundef readnone %1, ptr noundef writeonly %2) local_unnamed_addr #1 {
  %4 = tail call zeroext i8 @DebugAssertEnabled() #2
  %5 = icmp eq i8 %4, 0
  %6 = icmp ne ptr %1, null
  %or.cond = or i1 %6, %5
  br i1 %or.cond, label %8, label %7

7:                                                ; preds = %3
  tail call void @DebugAssert(ptr noundef nonnull @.str, i64 noundef 440, ptr noundef nonnull @.str.5) #2
  br label %8

8:                                                ; preds = %7, %3
  %9 = tail call zeroext i8 @DebugAssertEnabled() #2
  %.not = icmp eq i8 %9, 0
  %10 = and i64 %0, 4128768
  %11 = icmp eq i64 %10, 0
  %or.cond8 = or i1 %11, %.not
  br i1 %or.cond8, label %13, label %12

12:                                               ; preds = %8
  tail call void @DebugAssert(ptr noundef nonnull @.str, i64 noundef 441, ptr noundef nonnull @.str.3) #2
  br label %13

13:                                               ; preds = %12, %8
  %14 = tail call zeroext i8 @DebugAssertEnabled() #2
  %.not5 = icmp eq i8 %14, 0
  %15 = and i64 %0, -8388607
  %16 = icmp eq i64 %15, 0
  %or.cond10 = or i1 %16, %.not5
  br i1 %or.cond10, label %18, label %17

17:                                               ; preds = %13
  tail call void @DebugAssert(ptr noundef nonnull @.str, i64 noundef 442, ptr noundef nonnull @.str.4) #2
  br label %18

18:                                               ; preds = %13, %17
  %.not6 = icmp eq ptr %2, null
  br i1 %.not6, label %20, label %19

19:                                               ; preds = %18
  store i64 -9223372036854775805, ptr %2, align 8, !tbaa !5
  br label %20

20:                                               ; preds = %19, %18
  ret i64 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)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass