; LLVM IR from tsotchke/quantum_rng :: examples/crypto (key_derivation_utils)

; 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.kdf_config_t = type { i32, i32, i16, i8, i8, [1024 x i8], [256 x i8], i32, i32, i32, [1024 x i8], i32 }

; Function Attrs: nounwind uwtable
define dso_local void @init_kdf_config(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 = icmp ne ptr %3, null
  br i1 %4, label %6, label %5

5:                                                ; preds = %1
  br label %24

6:                                                ; preds = %1
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  call void @llvm.memset.p0.i64(ptr align 4 %7, i8 0, i64 2332, i1 false)
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.kdf_config_t, ptr %8, i32 0, i32 0
  store i32 100000, ptr %9, align 4, !tbaa !9
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.kdf_config_t, ptr %10, i32 0, i32 1
  store i32 1048576, ptr %11, align 4, !tbaa !13
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.kdf_config_t, ptr %12, i32 0, i32 2
  store i16 32, ptr %13, align 4, !tbaa !14
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.kdf_config_t, ptr %14, i32 0, i32 3
  store i8 50, ptr %15, align 2, !tbaa !15
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.kdf_config_t, ptr %16, i32 0, i32 4
  store i8 1, ptr %17, align 1, !tbaa !16
  %18 = load ptr, ptr %2, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.kdf_config_t, ptr %18, i32 0, i32 8
  store i32 0, ptr %19, align 4, !tbaa !17
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.kdf_config_t, ptr %20, i32 0, i32 9
  store i32 1, ptr %21, align 4, !tbaa !18
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.kdf_config_t, ptr %22, i32 0, i32 11
  store i32 1, ptr %23, align 4, !tbaa !19
  br label %24

24:                                               ; preds = %6, %5
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

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 = { nocallback nofree nounwind willreturn memory(argmem: write) }

!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, !11, i64 0}
!10 = !{!"", !11, i64 0, !11, i64 4, !12, i64 8, !7, i64 10, !7, i64 11, !7, i64 12, !7, i64 1036, !11, i64 1292, !11, i64 1296, !11, i64 1300, !7, i64 1304, !11, i64 2328}
!11 = !{!"int", !7, i64 0}
!12 = !{!"short", !7, i64 0}
!13 = !{!10, !11, i64 4}
!14 = !{!10, !12, i64 8}
!15 = !{!10, !7, i64 10}
!16 = !{!10, !7, i64 11}
!17 = !{!10, !11, i64 1296}
!18 = !{!10, !11, i64 1300}
!19 = !{!10, !11, i64 2328}


; 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: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define dso_local void @init_kdf_config(ptr noundef writeonly %0) local_unnamed_addr #0 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %10, label %2

2:                                                ; preds = %1
  %3 = getelementptr inbounds i8, ptr %0, i64 12
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(2332) %3, i8 0, i64 2316, i1 false)
  store i32 100000, ptr %0, align 4, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 4
  store i32 1048576, ptr %4, align 4, !tbaa !11
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  store i16 32, ptr %5, align 4, !tbaa !12
  %6 = getelementptr inbounds i8, ptr %0, i64 10
  store i8 50, ptr %6, align 2, !tbaa !13
  %7 = getelementptr inbounds i8, ptr %0, i64 11
  store i8 1, ptr %7, align 1, !tbaa !14
  %8 = getelementptr inbounds i8, ptr %0, i64 1300
  store i32 1, ptr %8, align 4, !tbaa !15
  %9 = getelementptr inbounds i8, ptr %0, i64 2328
  store i32 1, ptr %9, align 4, !tbaa !16
  br label %10

10:                                               ; preds = %1, %2
  ret void
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) 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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }

!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, !7, i64 0}
!6 = !{!"", !7, i64 0, !7, i64 4, !10, i64 8, !8, i64 10, !8, i64 11, !8, i64 12, !8, i64 1036, !7, i64 1292, !7, i64 1296, !7, i64 1300, !8, i64 1304, !7, i64 2328}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"short", !8, i64 0}
!11 = !{!6, !7, i64 4}
!12 = !{!6, !10, i64 8}
!13 = !{!6, !8, i64 10}
!14 = !{!6, !8, i64 11}
!15 = !{!6, !7, i64 1300}
!16 = !{!6, !7, i64 2328}


; Effective O3 passes: DSEPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass