; 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.4 = external hidden unnamed_addr constant [20 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: nounwind uwtable
declare hidden i32 @dh_paramgen_check(ptr noundef) #1

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

; 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) #3

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

16:                                               ; preds = %2
  %17 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %17, ptr %3, align 4
  store i32 1, ptr %9, align 4
  br label %25

18:                                               ; preds = %2
  %19 = load ptr, ptr %8, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.ossl_param_st, ptr %19, i32 1
  store ptr %20, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 40, ptr %10) #4
  call void @OSSL_PARAM_construct_int(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8 %10, ptr noundef @.str.4, ptr noundef %5)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %19, ptr align 8 %10, i64 40, i1 false), !tbaa.struct !11
  call void @llvm.lifetime.end.p0(i64 40, ptr %10) #4
  %21 = load ptr, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 40, ptr %11) #4
  call void @OSSL_PARAM_construct_end(ptr dead_on_unwind writable sret(%struct.ossl_param_st) align 8 %11)
  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
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds [2 x %struct.ossl_param_st], ptr %7, i64 0, i64 0
  %24 = call i32 @evp_pkey_ctx_set_params_strict(ptr noundef %22, ptr noundef %23)
  store i32 %24, ptr %3, align 4
  store i32 1, ptr %9, align 4
  br label %25

25:                                               ; preds = %18, %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %26 = load i32, ptr %3, align 4
  ret i32 %26
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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.4 = external hidden unnamed_addr constant [20 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: nounwind uwtable
declare hidden i32 @dh_paramgen_check(ptr noundef) local_unnamed_addr #1

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

; 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) #3

; 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_paramgen_generator(ptr noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  %3 = alloca i32, align 4
  %4 = alloca [2 x %struct.ossl_param_st], align 16
  %5 = alloca %struct.ossl_param_st, align 8
  store i32 %1, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %4) #4
  %6 = tail call i32 @dh_paramgen_check(ptr noundef %0)
  %7 = icmp slt i32 %6, 1
  br i1 %7, label %11, label %8

8:                                                ; preds = %2
  %9 = getelementptr inbounds i8, ptr %4, i64 40
  call void @OSSL_PARAM_construct_int(ptr dead_on_unwind nonnull writable sret(%struct.ossl_param_st) align 8 %4, ptr noundef nonnull @.str.4, ptr noundef nonnull %3) #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) %9, ptr noundef nonnull align 8 dereferenceable(40) %5, i64 40, i1 false), !tbaa.struct !9
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %5) #4
  %10 = call i32 @evp_pkey_ctx_set_params_strict(ptr noundef %0, ptr noundef nonnull %4) #4
  br label %11

11:                                               ; preds = %2, %8
  %.0 = phi i32 [ %10, %8 ], [ %6, %2 ]
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %4) #4
  ret i32 %.0
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{i64 0, i64 8, !10, i64 8, i64 4, !5, i64 16, i64 8, !10, i64 24, i64 8, !12, i64 32, i64 8, !12}
!10 = !{!11, !11, i64 0}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"long", !7, i64 0}


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