; LLVM IR from machinefi/psa-crypto-esp32 :: psa_layer (psa_crypto)

; 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.psa_key_slot_t = type { %struct.psa_core_key_attributes_t, i64, %struct.key_data }
%struct.psa_core_key_attributes_t = type { i16, i16, i32, i32, %struct.psa_key_policy_s, i16 }
%struct.psa_key_policy_s = type { i32, i32, i32 }
%struct.key_data = type { ptr, i64 }

; Function Attrs: nounwind uwtable
define dso_local i32 @psa_remove_key_data_from_memory(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds %struct.psa_key_slot_t, ptr %3, i32 0, i32 2
  %5 = getelementptr inbounds %struct.key_data, ptr %4, i32 0, i32 0
  %6 = load ptr, ptr %5, align 8, !tbaa !9
  %7 = icmp ne ptr %6, null
  br i1 %7, label %8, label %17

8:                                                ; preds = %1
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.psa_key_slot_t, ptr %9, i32 0, i32 2
  %11 = getelementptr inbounds %struct.key_data, ptr %10, i32 0, i32 0
  %12 = load ptr, ptr %11, align 8, !tbaa !9
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.psa_key_slot_t, ptr %13, i32 0, i32 2
  %15 = getelementptr inbounds %struct.key_data, ptr %14, i32 0, i32 1
  %16 = load i64, ptr %15, align 8, !tbaa !17
  call void @iotex_platform_zeroize(ptr noundef %12, i64 noundef %16)
  br label %17

17:                                               ; preds = %8, %1
  %18 = load ptr, ptr %2, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.psa_key_slot_t, ptr %18, i32 0, i32 2
  %20 = getelementptr inbounds %struct.key_data, ptr %19, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8, !tbaa !9
  call void @free(ptr noundef %21) #3
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.psa_key_slot_t, ptr %22, i32 0, i32 2
  %24 = getelementptr inbounds %struct.key_data, ptr %23, i32 0, i32 0
  store ptr null, ptr %24, align 8, !tbaa !9
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.psa_key_slot_t, ptr %25, i32 0, i32 2
  %27 = getelementptr inbounds %struct.key_data, ptr %26, i32 0, i32 1
  store i64 0, ptr %27, align 8, !tbaa !17
  ret i32 0
}

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

; Function Attrs: nounwind
declare void @free(ptr noundef) #2

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 "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"}
!9 = !{!10, !6, i64 40}
!10 = !{!"", !11, i64 0, !15, i64 32, !16, i64 40}
!11 = !{!"", !12, i64 0, !12, i64 2, !13, i64 4, !13, i64 8, !14, i64 12, !12, i64 24}
!12 = !{!"short", !7, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = !{!"psa_key_policy_s", !13, i64 0, !13, i64 4, !13, i64 8}
!15 = !{!"long", !7, i64 0}
!16 = !{!"key_data", !6, i64 0, !15, i64 8}
!17 = !{!10, !15, i64 48}


; 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
define dso_local noundef i32 @psa_remove_key_data_from_memory(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 40
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %7, label %4

4:                                                ; preds = %1
  %5 = getelementptr inbounds i8, ptr %0, i64 48
  %6 = load i64, ptr %5, align 8, !tbaa !16
  tail call void @iotex_platform_zeroize(ptr noundef nonnull %3, i64 noundef %6) #4
  %.pre = load ptr, ptr %2, align 8, !tbaa !5
  br label %7

7:                                                ; preds = %4, %1
  %8 = phi ptr [ %.pre, %4 ], [ null, %1 ]
  tail call void @free(ptr noundef %8) #4
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %2, i8 0, i64 16, i1 false)
  ret i32 0
}

declare void @iotex_platform_zeroize(ptr noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

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 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { 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, !15, i64 40}
!6 = !{!"", !7, i64 0, !13, i64 32, !14, i64 40}
!7 = !{!"", !8, i64 0, !8, i64 2, !11, i64 4, !11, i64 8, !12, i64 12, !8, i64 24}
!8 = !{!"short", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!"int", !9, i64 0}
!12 = !{!"psa_key_policy_s", !11, i64 0, !11, i64 4, !11, i64 8}
!13 = !{!"long", !9, i64 0}
!14 = !{!"key_data", !15, i64 0, !13, i64 8}
!15 = !{!"any pointer", !9, i64 0}
!16 = !{!6, !13, i64 48}


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