; 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_set0_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 i32 @evp_pkey_ctx_set_params_strict(ptr noundef, ptr noundef) #2

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

; Function Attrs: nounwind uwtable
define dso_local i32 @EVP_PKEY_CTX_set0_dh_kdf_ukm(ptr noundef %0, ptr noundef %1, i32 noundef %2) #3 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca [2 x %struct.ossl_param_st], align 16
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca %struct.ossl_param_st, align 8
  %13 = alloca %struct.ossl_param_st, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 80, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %14 = getelementptr inbounds [2 x %struct.ossl_param_st], ptr %9, i64 0, i64 0
  store ptr %14, ptr %10, align 8, !tbaa !5
  %15 = load i32, ptr %7, align 4, !tbaa !9
  %16 = icmp slt i32 %15, 0
  br i1 %16, label %17, label %18

17:                                               ; preds = %3
  store i32 -1, ptr %4, align 4
  store i32 1, ptr %11, align 4
  br label %45

18:                                               ; preds = %3
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = call i32 @dh_param_derive_check(ptr noundef %19)
  store i32 %20, ptr %8, align 4, !tbaa !9
  %21 = load i32, ptr %8, align 4, !tbaa !9
  %22 = icmp ne i32 %21, 1
  br i1 %22, label %23, label %25

23:                                               ; preds = %18
  %24 = load i32, ptr %8, align 4, !tbaa !9
  store i32 %24, ptr %4, align 4
  store i32 1, ptr %11, align 4
  br label %45

25:                                               ; preds = %18
  %26 = load ptr, ptr %10, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.ossl_param_st, ptr %26, i32 1
  store ptr %27, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 40, ptr %12) #4
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  %29 = load i32, ptr %7, align 4, !tbaa !9
  %30 = sext i32 %29 to i64
  call void @OSSL_PARAM_construct_octet_string(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8 %12, ptr noundef @.str.8, ptr noundef %28, i64 noundef %30)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %26, ptr align 8 %12, i64 40, i1 false), !tbaa.struct !11
  call void @llvm.lifetime.end.p0(i64 40, ptr %12) #4
  %31 = load ptr, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 40, ptr %13) #4
  call void @OSSL_PARAM_construct_end(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8 %13)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %31, ptr align 8 %13, i64 40, i1 false), !tbaa.struct !11
  call void @llvm.lifetime.end.p0(i64 40, ptr %13) #4
  %32 = load ptr, ptr %5, align 8, !tbaa !5
  %33 = getelementptr inbounds [2 x %struct.ossl_param_st], ptr %9, i64 0, i64 0
  %34 = call i32 @evp_pkey_ctx_set_params_strict(ptr noundef %32, ptr noundef %33)
  store i32 %34, ptr %8, align 4, !tbaa !9
  %35 = load i32, ptr %8, align 4, !tbaa !9
  %36 = icmp eq i32 %35, -2
  br i1 %36, label %37, label %38

37:                                               ; preds = %25
  call void @ERR_new()
  call void @ERR_set_debug(ptr noundef @.str.5, i32 noundef 313, ptr noundef @__func__.EVP_PKEY_CTX_set0_dh_kdf_ukm)
  call void (i32, i32, ptr, ...) @ERR_set_error(i32 noundef 6, i32 noundef 147, ptr noundef null)
  br label %38

38:                                               ; preds = %37, %25
  %39 = load i32, ptr %8, align 4, !tbaa !9
  %40 = icmp eq i32 %39, 1
  br i1 %40, label %41, label %43

41:                                               ; preds = %38
  %42 = load ptr, ptr %6, align 8, !tbaa !5
  call void @CRYPTO_free(ptr noundef %42, ptr noundef @.str.5, i32 noundef 315)
  br label %43

43:                                               ; preds = %41, %38
  %44 = load i32, ptr %8, align 4, !tbaa !9
  store i32 %44, ptr %4, align 4
  store i32 1, ptr %11, align 4
  br label %45

45:                                               ; preds = %43, %23, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  %46 = load i32, ptr %4, align 4
  ret i32 %46
}

declare void @CRYPTO_free(ptr noundef, ptr noundef, i32 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}


; 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_set0_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 i32 @evp_pkey_ctx_set_params_strict(ptr noundef, ptr noundef) local_unnamed_addr #2

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

; Function Attrs: nounwind uwtable
define dso_local i32 @EVP_PKEY_CTX_set0_dh_kdf_ukm(ptr noundef %0, ptr noundef %1, i32 noundef %2) local_unnamed_addr #3 {
  %4 = alloca [2 x %struct.ossl_param_st], align 16
  %5 = alloca %struct.ossl_param_st, align 8
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %4) #4
  %6 = icmp slt i32 %2, 0
  br i1 %6, label %15, label %7

7:                                                ; preds = %3
  %8 = tail call i32 @dh_param_derive_check(ptr noundef %0)
  %.not = icmp eq i32 %8, 1
  br i1 %.not, label %9, label %15

9:                                                ; preds = %7
  %10 = getelementptr inbounds i8, ptr %4, i64 40
  %11 = zext nneg i32 %2 to i64
  call void @OSSL_PARAM_construct_octet_string(ptr dead_on_unwind nonnull writable sret(%struct.ossl_param_st) align 8 %4, ptr noundef nonnull @.str.8, ptr noundef %1, i64 noundef %11) #4
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %5) #4
  call void @OSSL_PARAM_construct_end(ptr dead_on_unwind nonnull writable sret(%struct.ossl_param_st) align 8 %5) #4
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(40) %10, ptr noundef nonnull align 8 dereferenceable(40) %5, i64 40, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %5) #4
  %12 = call i32 @evp_pkey_ctx_set_params_strict(ptr noundef %0, ptr noundef nonnull %4) #4
  switch i32 %12, label %15 [
    i32 -2, label %13
    i32 1, label %14
  ]

13:                                               ; preds = %9
  call void @ERR_new() #4
  call void @ERR_set_debug(ptr noundef nonnull @.str.5, i32 noundef 313, ptr noundef nonnull @__func__.EVP_PKEY_CTX_set0_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

14:                                               ; preds = %9
  call void @CRYPTO_free(ptr noundef %1, ptr noundef nonnull @.str.5, i32 noundef 315) #4
  br label %15

15:                                               ; preds = %13, %14, %9, %7, %3
  %.0 = phi i32 [ -1, %3 ], [ %8, %7 ], [ %12, %9 ], [ 1, %14 ], [ -2, %13 ]
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %4) #4
  ret i32 %.0
}

declare void @CRYPTO_free(ptr noundef, ptr noundef, i32 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}


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