; LLVM IR from erthink/libmdbx :: src (api-misc)

; 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.38 = external hidden unnamed_addr constant [9 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 nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: cold nounwind optsize willreturn memory(read) uwtable
declare dso_local ptr @mdbx_liberr2str(i32 noundef) #1

; Function Attrs: cold nounwind optsize uwtable
define dso_local ptr @mdbx_strerror_r(i32 noundef %0, ptr noundef %1, i64 noundef %2) #2 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca ptr, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  store i64 %2, ptr %6, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %8 = load i32, ptr %4, align 4, !tbaa !5
  %9 = call ptr @mdbx_liberr2str(i32 noundef %8) #5
  store ptr %9, ptr %7, align 8, !tbaa !9
  %10 = load ptr, ptr %7, align 8, !tbaa !9
  %11 = icmp ne ptr %10, null
  br i1 %11, label %40, label %12

12:                                               ; preds = %3
  %13 = load i64, ptr %6, align 8, !tbaa !11
  %14 = icmp ugt i64 %13, 0
  br i1 %14, label %15, label %40

15:                                               ; preds = %12
  %16 = load i64, ptr %6, align 8, !tbaa !11
  %17 = icmp ult i64 %16, 2147483647
  br i1 %17, label %18, label %40

18:                                               ; preds = %15
  %19 = load i32, ptr %4, align 4, !tbaa !5
  %20 = icmp sgt i32 %19, 0
  br i1 %20, label %21, label %26

21:                                               ; preds = %18
  %22 = load i32, ptr %4, align 4, !tbaa !5
  %23 = load ptr, ptr %5, align 8, !tbaa !9
  %24 = load i64, ptr %6, align 8, !tbaa !11
  %25 = call ptr @strerror_r(i32 noundef %22, ptr noundef %23, i64 noundef %24) #4
  store ptr %25, ptr %7, align 8, !tbaa !9
  br label %26

26:                                               ; preds = %21, %18
  %27 = load ptr, ptr %7, align 8, !tbaa !9
  %28 = icmp ne ptr %27, null
  br i1 %28, label %35, label %29

29:                                               ; preds = %26
  %30 = load ptr, ptr %5, align 8, !tbaa !9
  %31 = load i64, ptr %6, align 8, !tbaa !11
  %32 = load i32, ptr %4, align 4, !tbaa !5
  %33 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr noundef %30, i64 noundef %31, ptr noundef @.str.38, i32 noundef %32) #4
  %34 = load ptr, ptr %5, align 8, !tbaa !9
  store ptr %34, ptr %7, align 8, !tbaa !9
  br label %35

35:                                               ; preds = %29, %26
  %36 = load ptr, ptr %5, align 8, !tbaa !9
  %37 = load i64, ptr %6, align 8, !tbaa !11
  %38 = sub i64 %37, 1
  %39 = getelementptr inbounds i8, ptr %36, i64 %38
  store i8 0, ptr %39, align 1, !tbaa !13
  br label %40

40:                                               ; preds = %35, %15, %12, %3
  %41 = load ptr, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  ret ptr %41
}

; Function Attrs: nounwind
declare ptr @strerror_r(i32 noundef, ptr noundef, i64 noundef) #3

; Function Attrs: nounwind
declare i32 @snprintf(ptr noundef, i64 noundef, ptr noundef, ...) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { cold nounwind optsize willreturn memory(read) 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 = { cold nounwind optsize 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 #3 = { nounwind "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 }
attributes #5 = { cold nounwind willreturn memory(read) }

!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}
!13 = !{!7, !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.38 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: cold mustprogress nofree nounwind optsize willreturn memory(read) uwtable
declare dso_local ptr @mdbx_liberr2str(i32 noundef) local_unnamed_addr #0

; Function Attrs: cold nounwind optsize uwtable
define dso_local ptr @mdbx_strerror_r(i32 noundef %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #1 {
  %4 = tail call ptr @mdbx_liberr2str(i32 noundef %0) #4
  %5 = icmp eq ptr %4, null
  %6 = add i64 %2, -1
  %7 = icmp ult i64 %6, 2147483646
  %or.cond3 = and i1 %7, %5
  br i1 %or.cond3, label %8, label %16

8:                                                ; preds = %3
  %9 = icmp sgt i32 %0, 0
  br i1 %9, label %10, label %.thread

10:                                               ; preds = %8
  %11 = tail call ptr @strerror_r(i32 noundef %0, ptr noundef %1, i64 noundef %2) #5
  %.not = icmp eq ptr %11, null
  br i1 %.not, label %.thread, label %13

.thread:                                          ; preds = %8, %10
  %12 = tail call i32 (ptr, i64, ptr, ...) @snprintf(ptr noundef %1, i64 noundef %2, ptr noundef nonnull @.str.38, i32 noundef %0) #5
  br label %13

13:                                               ; preds = %.thread, %10
  %.1 = phi ptr [ %11, %10 ], [ %1, %.thread ]
  %14 = getelementptr i8, ptr %1, i64 %2
  %15 = getelementptr i8, ptr %14, i64 -1
  store i8 0, ptr %15, align 1, !tbaa !5
  br label %16

16:                                               ; preds = %13, %3
  %.2 = phi ptr [ %.1, %13 ], [ %4, %3 ]
  ret ptr %.2
}

; Function Attrs: nounwind
declare ptr @strerror_r(i32 noundef, ptr noundef, i64 noundef) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @snprintf(ptr noalias nocapture noundef writeonly, i64 noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #3

attributes #0 = { cold mustprogress nofree nounwind optsize willreturn memory(read) 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 = { cold nounwind optsize 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 "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 = { nofree nounwind "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 = { cold nounwind willreturn memory(read) }
attributes #5 = { 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass