; LLVM IR from openssl/openssl :: crypto/evp (dh_ctrl)

; 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.ossl_param_st = type { ptr, i32, ptr, i64, i64 }

@.str.5 = external hidden unnamed_addr constant [70 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [8 x i8], align 1
@__func__.EVP_PKEY_CTX_get0_dh_kdf_ukm = external hidden unnamed_addr constant [29 x i8], align 1

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

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

declare void @OSSL_PARAM_construct_end(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8) #2

declare void @ERR_new() #2

declare void @ERR_set_debug(ptr noundef, i32 noundef, ptr noundef) #2

declare void @ERR_set_error(i32 noundef, i32 noundef, ptr noundef, ...) #2

; Function Attrs: nounwind uwtable
declare hidden i32 @dh_param_derive_check(ptr noundef) #3

declare i32 @evp_pkey_ctx_get_params_strict(ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @EVP_PKEY_CTX_get0_dh_kdf_ukm(ptr noundef %0, ptr noundef %1) #3 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i64, align 8
  %8 = alloca [2 x %struct.ossl_param_st], align 16
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca %struct.ossl_param_st, align 8
  %12 = alloca %struct.ossl_param_st, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 80, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %13 = getelementptr inbounds [2 x %struct.ossl_param_st], ptr %8, i64 0, i64 0
  store ptr %13, ptr %9, align 8, !tbaa !5
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = call i32 @dh_param_derive_check(ptr noundef %14)
  store i32 %15, ptr %6, align 4, !tbaa !9
  %16 = load i32, ptr %6, align 4, !tbaa !9
  %17 = icmp ne i32 %16, 1
  br i1 %17, label %18, label %20

18:                                               ; preds = %2
  %19 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %19, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %45

20:                                               ; preds = %2
  %21 = load ptr, ptr %9, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.ossl_param_st, ptr %21, i32 1
  store ptr %22, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 40, ptr %11) #4
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  call void @OSSL_PARAM_construct_octet_ptr(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8 %11, ptr noundef @.str.8, ptr noundef %23, i64 noundef 0)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %21, ptr align 8 %11, i64 40, i1 false), !tbaa.struct !11
  call void @llvm.lifetime.end.p0(i64 40, ptr %11) #4
  %24 = load ptr, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 40, ptr %12) #4
  call void @OSSL_PARAM_construct_end(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8 %12)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %24, ptr align 8 %12, i64 40, i1 false), !tbaa.struct !11
  call void @llvm.lifetime.end.p0(i64 40, ptr %12) #4
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = getelementptr inbounds [2 x %struct.ossl_param_st], ptr %8, i64 0, i64 0
  %27 = call i32 @evp_pkey_ctx_get_params_strict(ptr noundef %25, ptr noundef %26)
  store i32 %27, ptr %6, align 4, !tbaa !9
  %28 = load i32, ptr %6, align 4, !tbaa !9
  %29 = icmp eq i32 %28, -2
  br i1 %29, label %30, label %31

30:                                               ; preds = %20
  call void @ERR_new()
  call void @ERR_set_debug(ptr noundef @.str.5, i32 noundef 336, ptr noundef @__func__.EVP_PKEY_CTX_get0_dh_kdf_ukm)
  call void (i32, i32, ptr, ...) @ERR_set_error(i32 noundef 6, i32 noundef 147, ptr noundef null)
  br label %31

31:                                               ; preds = %30, %20
  %32 = load i32, ptr %6, align 4, !tbaa !9
  %33 = icmp ne i32 %32, 1
  br i1 %33, label %34, label %35

34:                                               ; preds = %31
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %45

35:                                               ; preds = %31
  %36 = getelementptr inbounds [2 x %struct.ossl_param_st], ptr %8, i64 0, i64 0
  %37 = getelementptr inbounds %struct.ossl_param_st, ptr %36, i32 0, i32 4
  %38 = load i64, ptr %37, align 16, !tbaa !14
  store i64 %38, ptr %7, align 8, !tbaa !12
  %39 = load i64, ptr %7, align 8, !tbaa !12
  %40 = icmp ugt i64 %39, 2147483647
  br i1 %40, label %41, label %42

41:                                               ; preds = %35
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %45

42:                                               ; preds = %35
  %43 = load i64, ptr %7, align 8, !tbaa !12
  %44 = trunc i64 %43 to i32
  store i32 %44, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %45

45:                                               ; preds = %42, %41, %34, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %46 = load i32, ptr %3, align 4
  ret i32 %46
}

declare void @OSSL_PARAM_construct_octet_ptr(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8, ptr noundef, ptr noundef, i64 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 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 #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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{i64 0, i64 8, !5, i64 8, i64 4, !9, i64 16, i64 8, !5, i64 24, i64 8, !12, i64 32, i64 8, !12}
!12 = !{!13, !13, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{!15, !13, i64 32}
!15 = !{!"ossl_param_st", !6, i64 0, !10, i64 8, !6, i64 16, !13, i64 24, !13, i64 32}


; 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.ossl_param_st = type { ptr, i32, ptr, i64, i64 }

@.str.5 = external hidden unnamed_addr constant [70 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [8 x i8], align 1
@__func__.EVP_PKEY_CTX_get0_dh_kdf_ukm = external hidden unnamed_addr constant [29 x i8], align 1

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

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

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

declare void @OSSL_PARAM_construct_end(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8) local_unnamed_addr #2

declare void @ERR_new() local_unnamed_addr #2

declare void @ERR_set_debug(ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #2

declare void @ERR_set_error(i32 noundef, i32 noundef, ptr noundef, ...) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare hidden i32 @dh_param_derive_check(ptr noundef) local_unnamed_addr #3

declare i32 @evp_pkey_ctx_get_params_strict(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local i32 @EVP_PKEY_CTX_get0_dh_kdf_ukm(ptr noundef %0, ptr noundef %1) local_unnamed_addr #3 {
  %3 = alloca [2 x %struct.ossl_param_st], align 16
  %4 = alloca %struct.ossl_param_st, align 8
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %3) #4
  %5 = tail call i32 @dh_param_derive_check(ptr noundef %0)
  %.not = icmp eq i32 %5, 1
  br i1 %.not, label %6, label %15

6:                                                ; preds = %2
  %7 = getelementptr inbounds i8, ptr %3, i64 40
  call void @OSSL_PARAM_construct_octet_ptr(ptr dead_on_unwind nonnull writable sret(%struct.ossl_param_st) align 8 %3, ptr noundef nonnull @.str.8, ptr noundef %1, i64 noundef 0) #4
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %4) #4
  call void @OSSL_PARAM_construct_end(ptr dead_on_unwind nonnull writable sret(%struct.ossl_param_st) align 8 %4) #4
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(40) %7, ptr noundef nonnull align 8 dereferenceable(40) %4, i64 40, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %4) #4
  %8 = call i32 @evp_pkey_ctx_get_params_strict(ptr noundef %0, ptr noundef nonnull %3) #4
  switch i32 %8, label %15 [
    i32 -2, label %9
    i32 1, label %10
  ]

9:                                                ; preds = %6
  call void @ERR_new() #4
  call void @ERR_set_debug(ptr noundef nonnull @.str.5, i32 noundef 336, ptr noundef nonnull @__func__.EVP_PKEY_CTX_get0_dh_kdf_ukm) #4
  call void (i32, i32, ptr, ...) @ERR_set_error(i32 noundef 6, i32 noundef 147, ptr noundef null) #4
  br label %15

10:                                               ; preds = %6
  %11 = getelementptr inbounds i8, ptr %3, i64 32
  %12 = load i64, ptr %11, align 16, !tbaa !14
  %13 = icmp ugt i64 %12, 2147483647
  %14 = trunc nuw nsw i64 %12 to i32
  %spec.select = select i1 %13, i32 -1, i32 %14
  br label %15

15:                                               ; preds = %10, %9, %6, %2
  %.0 = phi i32 [ %5, %2 ], [ -1, %6 ], [ -1, %9 ], [ %spec.select, %10 ]
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #4
  ret i32 %.0
}

declare void @OSSL_PARAM_construct_octet_ptr(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8, ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 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 #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 = !{i64 0, i64 8, !6, i64 8, i64 4, !10, i64 16, i64 8, !6, i64 24, i64 8, !12, i64 32, i64 8, !12}
!6 = !{!7, !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"long", !8, i64 0}
!14 = !{!15, !13, i64 32}
!15 = !{!"ossl_param_st", !7, i64 0, !11, i64 8, !7, i64 16, !13, i64 24, !13, i64 32}


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