; LLVM IR from chdb-io/chdb :: base/glibc-compatibility/musl/getauxval.ll_ (retry_read)

; 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 [28 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i64 @__retry_read(i32 noundef %0, ptr noundef %1, i64 noundef %2) #0 {
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !9
  store i64 %2, ptr %7, align 8, !tbaa !11
  br label %10

10:                                               ; preds = %26, %3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  %11 = load i32, ptr %5, align 4, !tbaa !5
  %12 = load ptr, ptr %6, align 8, !tbaa !9
  %13 = load i64, ptr %7, align 8, !tbaa !11
  %14 = call i64 (i64, ...) @__syscall(i64 noundef 0, i32 noundef %11, ptr noundef %12, i64 noundef %13)
  %15 = call i64 @__syscall_ret(i64 noundef %14)
  store i64 %15, ptr %8, align 8, !tbaa !11
  %16 = load i64, ptr %8, align 8, !tbaa !11
  %17 = icmp eq i64 %16, -1
  br i1 %17, label %18, label %24

18:                                               ; preds = %10
  %19 = call ptr @__errno_location() #6
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = icmp eq i32 %20, 4
  br i1 %21, label %22, label %23

22:                                               ; preds = %18
  store i32 3, ptr %9, align 4
  br label %26

23:                                               ; preds = %18
  call void @perror(ptr noundef @.str)
  call void @abort() #7
  unreachable

24:                                               ; preds = %10
  %25 = load i64, ptr %8, align 8, !tbaa !11
  store i64 %25, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %26

26:                                               ; preds = %24, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  %27 = load i32, ptr %9, align 4
  switch i32 %27, label %30 [
    i32 3, label %10
    i32 1, label %28
  ]

28:                                               ; preds = %26
  %29 = load i64, ptr %4, align 8
  ret i64 %29

30:                                               ; preds = %26
  unreachable
}

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

declare hidden i64 @__syscall_ret(i64 noundef) #2

declare hidden i64 @__syscall(i64 noundef, ...) #2

; Function Attrs: nounwind willreturn memory(none)
declare ptr @__errno_location() #3

declare void @perror(ptr noundef) #2

; Function Attrs: noreturn nounwind
declare void @abort() #4

; 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 willreturn memory(none) "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 = { noreturn 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 #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(none) }
attributes #7 = { noreturn 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 [28 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i64 @__retry_read(i32 noundef %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  br label %4

4:                                                ; preds = %8, %3
  %5 = tail call i64 (i64, ...) @__syscall(i64 noundef 0, i32 noundef %0, ptr noundef %1, i64 noundef %2) #5
  %6 = tail call i64 @__syscall_ret(i64 noundef %5) #5
  %7 = icmp eq i64 %6, -1
  br i1 %7, label %8, label %13

8:                                                ; preds = %4
  %9 = tail call ptr @__errno_location() #6
  %10 = load i32, ptr %9, align 4, !tbaa !5
  %11 = icmp eq i32 %10, 4
  br i1 %11, label %4, label %12

12:                                               ; preds = %8
  tail call void @perror(ptr noundef nonnull @.str) #7
  tail call void @abort() #8
  unreachable

13:                                               ; preds = %4
  ret i64 %6
}

declare hidden i64 @__syscall_ret(i64 noundef) local_unnamed_addr #1

declare hidden i64 @__syscall(i64 noundef, ...) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
declare ptr @__errno_location() local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare void @perror(ptr nocapture noundef readonly) local_unnamed_addr #3

; Function Attrs: noreturn nounwind
declare void @abort() local_unnamed_addr #4

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 = { "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 = { mustprogress nofree nosync nounwind willreturn memory(none) "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 = { noreturn 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 #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(none) }
attributes #7 = { cold }
attributes #8 = { noreturn 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"}


; Effective O3 passes: CorrelatedValuePropagationPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass