; LLVM IR from openssl/openssl :: crypto/ec (ecdsa_ossl)

; 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.ec_key_st = type { ptr, ptr, i32, ptr, ptr, ptr, i32, i32, %struct.CRYPTO_REF_COUNT, i32, %struct.crypto_ex_data_st, ptr, ptr, i64 }
%struct.CRYPTO_REF_COUNT = type { i32 }
%struct.crypto_ex_data_st = type { ptr, ptr }
%struct.ec_group_st = type { ptr, ptr, ptr, ptr, i32, i32, i32, i32, ptr, i64, ptr, [6 x i32], ptr, ptr, i32, ptr, ptr, ptr, ptr, i32, %union.anon, ptr, ptr }
%union.anon = type { ptr }
%struct.ec_method_st = type { i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [72 x i8], align 1
@__func__.ossl_ecdsa_sign_sig = external hidden unnamed_addr constant [20 x i8], align 1

declare void @ERR_new() #0

declare void @ERR_set_debug(ptr noundef, i32 noundef, ptr noundef) #0

declare void @ERR_set_error(i32 noundef, i32 noundef, ptr noundef, ...) #0

; Function Attrs: nounwind uwtable
define dso_local ptr @ossl_ecdsa_sign_sig(ptr noundef %0, i32 noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) #1 {
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  store ptr %0, ptr %7, align 8, !tbaa !5
  store i32 %1, ptr %8, align 4, !tbaa !9
  store ptr %2, ptr %9, align 8, !tbaa !5
  store ptr %3, ptr %10, align 8, !tbaa !5
  store ptr %4, ptr %11, align 8, !tbaa !5
  %12 = load ptr, ptr %11, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.ec_key_st, ptr %12, i32 0, i32 3
  %14 = load ptr, ptr %13, align 8, !tbaa !11
  %15 = getelementptr inbounds %struct.ec_group_st, ptr %14, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8, !tbaa !16
  %17 = getelementptr inbounds %struct.ec_method_st, ptr %16, i32 0, i32 49
  %18 = load ptr, ptr %17, align 8, !tbaa !18
  %19 = icmp eq ptr %18, null
  br i1 %19, label %20, label %21

20:                                               ; preds = %5
  call void @ERR_new()
  call void @ERR_set_debug(ptr noundef @.str, i32 noundef 55, ptr noundef @__func__.ossl_ecdsa_sign_sig)
  call void (i32, i32, ptr, ...) @ERR_set_error(i32 noundef 16, i32 noundef 170, ptr noundef null)
  store ptr null, ptr %6, align 8
  br label %35

21:                                               ; preds = %5
  %22 = load ptr, ptr %11, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.ec_key_st, ptr %22, i32 0, i32 3
  %24 = load ptr, ptr %23, align 8, !tbaa !11
  %25 = getelementptr inbounds %struct.ec_group_st, ptr %24, i32 0, i32 0
  %26 = load ptr, ptr %25, align 8, !tbaa !16
  %27 = getelementptr inbounds %struct.ec_method_st, ptr %26, i32 0, i32 49
  %28 = load ptr, ptr %27, align 8, !tbaa !18
  %29 = load ptr, ptr %7, align 8, !tbaa !5
  %30 = load i32, ptr %8, align 4, !tbaa !9
  %31 = load ptr, ptr %9, align 8, !tbaa !5
  %32 = load ptr, ptr %10, align 8, !tbaa !5
  %33 = load ptr, ptr %11, align 8, !tbaa !5
  %34 = call ptr %28(ptr noundef %29, i32 noundef %30, ptr noundef %31, ptr noundef %32, ptr noundef %33)
  store ptr %34, ptr %6, align 8
  br label %35

35:                                               ; preds = %21, %20
  %36 = load ptr, ptr %6, align 8
  ret ptr %36
}

attributes #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 = { 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" }

!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, !6, i64 24}
!12 = !{!"ec_key_st", !6, i64 0, !6, i64 8, !10, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !10, i64 48, !10, i64 52, !13, i64 56, !10, i64 60, !14, i64 64, !6, i64 80, !6, i64 88, !15, i64 96}
!13 = !{!"", !7, i64 0}
!14 = !{!"crypto_ex_data_st", !6, i64 0, !6, i64 8}
!15 = !{!"long", !7, i64 0}
!16 = !{!17, !6, i64 0}
!17 = !{!"ec_group_st", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !10, i64 32, !10, i64 36, !10, i64 40, !10, i64 44, !6, i64 48, !15, i64 56, !6, i64 64, !7, i64 72, !6, i64 96, !6, i64 104, !10, i64 112, !6, i64 120, !6, i64 128, !6, i64 136, !6, i64 144, !10, i64 152, !7, i64 160, !6, i64 168, !6, i64 176}
!18 = !{!19, !6, i64 384}
!19 = !{!"ec_method_st", !10, i64 0, !10, i64 4, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !6, i64 88, !6, i64 96, !6, i64 104, !6, i64 112, !6, i64 120, !6, i64 128, !6, i64 136, !6, i64 144, !6, i64 152, !6, i64 160, !6, i64 168, !6, i64 176, !6, i64 184, !6, i64 192, !6, i64 200, !6, i64 208, !6, i64 216, !6, i64 224, !6, i64 232, !6, i64 240, !6, i64 248, !6, i64 256, !6, i64 264, !6, i64 272, !6, i64 280, !6, i64 288, !6, i64 296, !6, i64 304, !6, i64 312, !6, i64 320, !6, i64 328, !6, i64 336, !6, i64 344, !6, i64 352, !6, i64 360, !6, i64 368, !6, i64 376, !6, i64 384, !6, i64 392, !6, i64 400, !6, i64 408, !6, i64 416, !6, i64 424, !6, i64 432, !6, i64 440}


; 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"

@.str = external hidden unnamed_addr constant [72 x i8], align 1
@__func__.ossl_ecdsa_sign_sig = external hidden unnamed_addr constant [20 x i8], align 1

declare void @ERR_new() local_unnamed_addr #0

declare void @ERR_set_debug(ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

declare void @ERR_set_error(i32 noundef, i32 noundef, ptr noundef, ...) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local ptr @ossl_ecdsa_sign_sig(ptr noundef %0, i32 noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) local_unnamed_addr #1 {
  %6 = getelementptr inbounds i8, ptr %4, i64 24
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = load ptr, ptr %7, align 8, !tbaa !14
  %9 = getelementptr inbounds i8, ptr %8, i64 384
  %10 = load ptr, ptr %9, align 8, !tbaa !16
  %11 = icmp eq ptr %10, null
  br i1 %11, label %12, label %13

12:                                               ; preds = %5
  tail call void @ERR_new() #2
  tail call void @ERR_set_debug(ptr noundef nonnull @.str, i32 noundef 55, ptr noundef nonnull @__func__.ossl_ecdsa_sign_sig) #2
  tail call void (i32, i32, ptr, ...) @ERR_set_error(i32 noundef 16, i32 noundef 170, ptr noundef null) #2
  br label %15

13:                                               ; preds = %5
  %14 = tail call ptr %10(ptr noundef %0, i32 noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef nonnull %4) #2
  br label %15

15:                                               ; preds = %13, %12
  %.0 = phi ptr [ null, %12 ], [ %14, %13 ]
  ret ptr %.0
}

attributes #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 = { 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 = { 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, !7, i64 24}
!6 = !{!"ec_key_st", !7, i64 0, !7, i64 8, !10, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !10, i64 48, !10, i64 52, !11, i64 56, !10, i64 60, !12, i64 64, !7, i64 80, !7, i64 88, !13, i64 96}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"", !8, i64 0}
!12 = !{!"crypto_ex_data_st", !7, i64 0, !7, i64 8}
!13 = !{!"long", !8, i64 0}
!14 = !{!15, !7, i64 0}
!15 = !{!"ec_group_st", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !10, i64 32, !10, i64 36, !10, i64 40, !10, i64 44, !7, i64 48, !13, i64 56, !7, i64 64, !8, i64 72, !7, i64 96, !7, i64 104, !10, i64 112, !7, i64 120, !7, i64 128, !7, i64 136, !7, i64 144, !10, i64 152, !8, i64 160, !7, i64 168, !7, i64 176}
!16 = !{!17, !7, i64 384}
!17 = !{!"ec_method_st", !10, i64 0, !10, i64 4, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !7, i64 80, !7, i64 88, !7, i64 96, !7, i64 104, !7, i64 112, !7, i64 120, !7, i64 128, !7, i64 136, !7, i64 144, !7, i64 152, !7, i64 160, !7, i64 168, !7, i64 176, !7, i64 184, !7, i64 192, !7, i64 200, !7, i64 208, !7, i64 216, !7, i64 224, !7, i64 232, !7, i64 240, !7, i64 248, !7, i64 256, !7, i64 264, !7, i64 272, !7, i64 280, !7, i64 288, !7, i64 296, !7, i64 304, !7, i64 312, !7, i64 320, !7, i64 328, !7, i64 336, !7, i64 344, !7, i64 352, !7, i64 360, !7, i64 368, !7, i64 376, !7, i64 384, !7, i64 392, !7, i64 400, !7, i64 408, !7, i64 416, !7, i64 424, !7, i64 432, !7, i64 440}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InstCombinePass,SROAPass,TailCallElimPass