; LLVM IR from openanolis/openssl :: demos/signature (rsa_pss_direct)

; 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"

@.str = external hidden unnamed_addr constant [85 x i8], align 1

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

13:                                               ; preds = %2
  br label %22

14:                                               ; preds = %2
  %15 = load ptr, ptr %7, align 8, !tbaa !9
  %16 = load ptr, ptr %8, align 8, !tbaa !9
  %17 = load i64, ptr %9, align 8, !tbaa !11
  %18 = call i32 @verify(ptr noundef %15, ptr noundef %16, i64 noundef %17)
  %19 = icmp eq i32 %18, 0
  br i1 %19, label %20, label %21

20:                                               ; preds = %14
  br label %22

21:                                               ; preds = %14
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %22

22:                                               ; preds = %21, %20, %13
  %23 = load ptr, ptr %8, align 8, !tbaa !9
  call void @CRYPTO_free(ptr noundef %23, ptr noundef @.str, i32 noundef 201)
  %24 = load ptr, ptr %7, align 8, !tbaa !9
  call void @OSSL_LIB_CTX_free(ptr noundef %24)
  %25 = load i32, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  ret i32 %25
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
declare hidden i32 @sign(ptr noundef, ptr noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
declare hidden i32 @verify(ptr noundef, ptr noundef, i64 noundef) #0

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

declare void @OSSL_LIB_CTX_free(ptr noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 #1 = { nocallback nofree nosync 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 }

!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, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"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"

@.str = external hidden unnamed_addr constant [85 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @main(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #0 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  store ptr null, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  store i64 0, ptr %4, align 8, !tbaa !9
  %5 = call i32 @sign(ptr noundef null, ptr noundef nonnull %3, ptr noundef nonnull %4)
  %6 = icmp eq i32 %5, 0
  br i1 %6, label %12, label %7

7:                                                ; preds = %2
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = load i64, ptr %4, align 8, !tbaa !9
  %10 = call i32 @verify(ptr noundef null, ptr noundef %8, i64 noundef %9)
  %11 = icmp eq i32 %10, 0
  %spec.select = zext i1 %11 to i32
  br label %12

12:                                               ; preds = %7, %2
  %.0 = phi i32 [ 1, %2 ], [ %spec.select, %7 ]
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  call void @CRYPTO_free(ptr noundef %13, ptr noundef nonnull @.str, i32 noundef 201) #3
  call void @OSSL_LIB_CTX_free(ptr noundef null) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  ret i32 %.0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
declare hidden i32 @sign(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare hidden i32 @verify(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #0

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

declare void @OSSL_LIB_CTX_free(ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync 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 }

!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 = !{!"long", !7, i64 0}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass