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

; 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.HEFI_EDITOR_MEM_IMAGE = type { ptr, i64, i64 }

@HMemImage = external dso_local global %struct.HEFI_EDITOR_MEM_IMAGE, align 8
@HMemImageBackupVar = external dso_local global %struct.HEFI_EDITOR_MEM_IMAGE, align 8

; Function Attrs: nounwind uwtable
define dso_local i64 @HMemImageBackup() #0 {
  %1 = load i64, ptr getelementptr inbounds (%struct.HEFI_EDITOR_MEM_IMAGE, ptr @HMemImage, i32 0, i32 1), align 8, !tbaa !5
  store i64 %1, ptr getelementptr inbounds (%struct.HEFI_EDITOR_MEM_IMAGE, ptr @HMemImageBackupVar, i32 0, i32 1), align 8, !tbaa !5
  %2 = load i64, ptr getelementptr inbounds (%struct.HEFI_EDITOR_MEM_IMAGE, ptr @HMemImage, i32 0, i32 2), align 8, !tbaa !11
  store i64 %2, ptr getelementptr inbounds (%struct.HEFI_EDITOR_MEM_IMAGE, ptr @HMemImageBackupVar, i32 0, i32 2), align 8, !tbaa !11
  ret i64 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" }

!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 = !{!"", !7, i64 0, !10, i64 8, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long long", !8, i64 0}
!11 = !{!6, !10, i64 16}


; 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"

%struct.HEFI_EDITOR_MEM_IMAGE = type { ptr, i64, i64 }

@HMemImage = external dso_local local_unnamed_addr global %struct.HEFI_EDITOR_MEM_IMAGE, align 8
@HMemImageBackupVar = external dso_local local_unnamed_addr global %struct.HEFI_EDITOR_MEM_IMAGE, align 8

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: none) uwtable
define dso_local noundef i64 @HMemImageBackup() local_unnamed_addr #0 {
  %1 = load <2 x i64>, ptr getelementptr inbounds (i8, ptr @HMemImage, i64 8), align 8, !tbaa !5
  store <2 x i64> %1, ptr getelementptr inbounds (i8, ptr @HMemImageBackupVar, i64 8), align 8, !tbaa !5
  ret i64 0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: none) 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"}


; Effective O3 passes: GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass