; 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 }
%struct.evp_pkey_ctx_st = type { i32, ptr, ptr, ptr, ptr, %union.anon, %struct.anon.4, ptr, ptr, ptr, i32, i32, ptr, ptr, ptr, ptr, ptr, i8, ptr }
%union.anon = type { %struct.anon.0 }
%struct.anon.0 = type { ptr, ptr }
%struct.anon.4 = type { ptr, ptr, i64, i8 }

@.str.5 = external hidden unnamed_addr constant [70 x i8], align 1
@__func__.EVP_PKEY_CTX_set_dh_pad = external hidden unnamed_addr constant [24 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [4 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

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

14:                                               ; preds = %2
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.evp_pkey_ctx_st, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 8, !tbaa !11
  %18 = and i32 %17, 2048
  %19 = icmp ne i32 %18, 0
  br i1 %19, label %21, label %20

20:                                               ; preds = %14, %2
  call void @ERR_new()
  call void @ERR_set_debug(ptr noundef @.str.5, i32 noundef 166, ptr noundef @__func__.EVP_PKEY_CTX_set_dh_pad)
  call void (i32, i32, ptr, ...) @ERR_set_error(i32 noundef 6, i32 noundef 147, ptr noundef null)
  store i32 -2, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %27

21:                                               ; preds = %14
  %22 = getelementptr inbounds [2 x %struct.ossl_param_st], ptr %6, i64 0, i64 0
  call void @llvm.lifetime.start.p0(i64 40, ptr %9) #4
  call void @OSSL_PARAM_construct_uint(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8 %9, ptr noundef @.str.6, ptr noundef %7)
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %22, ptr align 8 %9, i64 40, i1 false), !tbaa.struct !15
  call void @llvm.lifetime.end.p0(i64 40, ptr %9) #4
  %23 = getelementptr inbounds [2 x %struct.ossl_param_st], ptr %6, i64 0, i64 1
  call void @llvm.lifetime.start.p0(i64 40, ptr %10) #4
  call void @OSSL_PARAM_construct_end(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8 %10)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %23, ptr align 8 %10, i64 40, i1 false), !tbaa.struct !15
  call void @llvm.lifetime.end.p0(i64 40, ptr %10) #4
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = getelementptr inbounds [2 x %struct.ossl_param_st], ptr %6, i64 0, i64 0
  %26 = call i32 @evp_pkey_ctx_set_params_strict(ptr noundef %24, ptr noundef %25)
  store i32 %26, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %27

27:                                               ; preds = %21, %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %6) #4
  %28 = load i32, ptr %3, align 4
  ret i32 %28
}

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

declare void @OSSL_PARAM_construct_uint(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8, ptr noundef, ptr 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 = !{!12, !10, i64 0}
!12 = !{!"evp_pkey_ctx_st", !10, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !7, i64 40, !13, i64 56, !6, i64 88, !6, i64 96, !6, i64 104, !10, i64 112, !10, i64 116, !6, i64 120, !6, i64 128, !6, i64 136, !6, i64 144, !6, i64 152, !10, i64 160, !6, i64 168}
!13 = !{!"", !6, i64 0, !6, i64 8, !14, i64 16, !10, i64 24}
!14 = !{!"long", !7, i64 0}
!15 = !{i64 0, i64 8, !5, i64 8, i64 4, !9, i64 16, i64 8, !5, i64 24, i64 8, !16, i64 32, i64 8, !16}
!16 = !{!14, !14, 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
@__func__.EVP_PKEY_CTX_set_dh_pad = external hidden unnamed_addr constant [24 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [4 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

; Function Attrs: nounwind uwtable
define dso_local i32 @EVP_PKEY_CTX_set_dh_pad(ptr noundef %0, i32 noundef %1) local_unnamed_addr #3 {
  %3 = alloca [2 x %struct.ossl_param_st], align 16
  %4 = alloca i32, align 4
  %5 = alloca %struct.ossl_param_st, align 8
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  store i32 %1, ptr %4, align 4, !tbaa !5
  %6 = icmp eq ptr %0, null
  br i1 %6, label %10, label %7

7:                                                ; preds = %2
  %8 = load i32, ptr %0, align 8, !tbaa !9
  %9 = and i32 %8, 2048
  %.not = icmp eq i32 %9, 0
  br i1 %.not, label %10, label %11

10:                                               ; preds = %7, %2
  tail call void @ERR_new() #4
  tail call void @ERR_set_debug(ptr noundef nonnull @.str.5, i32 noundef 166, ptr noundef nonnull @__func__.EVP_PKEY_CTX_set_dh_pad) #4
  tail call void (i32, i32, ptr, ...) @ERR_set_error(i32 noundef 6, i32 noundef 147, ptr noundef null) #4
  br label %14

11:                                               ; preds = %7
  call void @OSSL_PARAM_construct_uint(ptr dead_on_unwind nonnull writable sret(%struct.ossl_param_st) align 8 %3, ptr noundef nonnull @.str.6, ptr noundef nonnull %4) #4
  %12 = getelementptr inbounds i8, ptr %3, i64 40
  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) %12, ptr noundef nonnull align 8 dereferenceable(40) %5, i64 40, i1 false), !tbaa.struct !14
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %5) #4
  %13 = call i32 @evp_pkey_ctx_set_params_strict(ptr noundef nonnull %0, ptr noundef nonnull %3) #4
  br label %14

14:                                               ; preds = %11, %10
  %.0 = phi i32 [ -2, %10 ], [ %13, %11 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #4
  ret i32 %.0
}

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

declare void @OSSL_PARAM_construct_uint(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8, ptr noundef, ptr 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 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"evp_pkey_ctx_st", !6, i64 0, !11, i64 8, !11, i64 16, !11, i64 24, !11, i64 32, !7, i64 40, !12, i64 56, !11, i64 88, !11, i64 96, !11, i64 104, !6, i64 112, !6, i64 116, !11, i64 120, !11, i64 128, !11, i64 136, !11, i64 144, !11, i64 152, !6, i64 160, !11, i64 168}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!"", !11, i64 0, !11, i64 8, !13, i64 16, !6, i64 24}
!13 = !{!"long", !7, i64 0}
!14 = !{i64 0, i64 8, !15, i64 8, i64 4, !5, i64 16, i64 8, !15, i64 24, i64 8, !16, i64 32, i64 8, !16}
!15 = !{!11, !11, i64 0}
!16 = !{!13, !13, i64 0}


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