; LLVM IR from mkazhdan/DMG :: Util/XPlatform.ll (ZN8IOServer9fprintfIDEP8_IO_FILEPKcz)

; 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"

%"class.IOServer::StdoutLock" = type { i8 }
%struct.__va_list_tag = type { i32, i32, ptr, ptr }

@.str.15 = external hidden unnamed_addr constant [5 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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8IOServer9fprintfIDEP8_IO_FILEPKcz(ptr noundef %0, ptr noundef %1, ...) #1 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %"class.IOServer::StdoutLock", align 1
  %6 = alloca [1 x %struct.__va_list_tag], align 16
  %7 = alloca [512 x i8], align 16
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #6
  call void @_ZN8IOServer10StdoutLockC1Ev(ptr noundef nonnull align 1 dereferenceable(1) %5)
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #6
  %10 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %6, i64 0, i64 0
  call void @llvm.va_start.p0(ptr %10)
  call void @llvm.lifetime.start.p0(i64 512, ptr %7) #6
  %11 = getelementptr inbounds [512 x i8], ptr %7, i64 0, i64 0
  invoke void @_Z15SetThisThreadIDPc(ptr noundef %11)
          to label %12 unwind label %24

12:                                               ; preds = %2
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = getelementptr inbounds [512 x i8], ptr %7, i64 0, i64 0
  %15 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %13, ptr noundef @.str.15, ptr noundef %14) #6
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %6, i64 0, i64 0
  %19 = call i32 @vfprintf(ptr noundef %16, ptr noundef %17, ptr noundef %18) #6
  %20 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %6, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %20)
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = invoke i32 @fflush(ptr noundef %21)
          to label %23 unwind label %24

23:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 512, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #6
  call void @_ZN8IOServer10StdoutLockD1Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  ret void

24:                                               ; preds = %12, %2
  %25 = landingpad { ptr, i32 }
          cleanup
  %26 = extractvalue { ptr, i32 } %25, 0
  store ptr %26, ptr %8, align 8
  %27 = extractvalue { ptr, i32 } %25, 1
  store i32 %27, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 512, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #6
  call void @_ZN8IOServer10StdoutLockD1Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  br label %28

28:                                               ; preds = %24
  %29 = load ptr, ptr %8, align 8
  %30 = load i32, ptr %9, align 4
  %31 = insertvalue { ptr, i32 } poison, ptr %29, 0
  %32 = insertvalue { ptr, i32 } %31, i32 %30, 1
  resume { ptr, i32 } %32
}

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z15SetThisThreadIDPc(ptr noundef) #3

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #4

; Function Attrs: nounwind
declare i32 @vfprintf(ptr noundef, ptr noundef, ptr noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #2

declare i32 @fflush(ptr noundef) #5

declare void @_ZN8IOServer10StdoutLockC1Ev(ptr)

declare void @_ZN8IOServer10StdoutLockD1Ev(ptr)

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 = { nocallback nofree nosync nounwind willreturn }
attributes #3 = { inlinehint mustprogress 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 #4 = { 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 = { "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 #6 = { 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++ TBAA"}


; 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"

%"class.IOServer::StdoutLock" = type { i8 }
%struct.__va_list_tag = type { i32, i32, ptr, ptr }

@.str.15 = external hidden unnamed_addr constant [5 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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8IOServer9fprintfIDEP8_IO_FILEPKcz(ptr nocapture noundef %0, ptr nocapture noundef readonly %1, ...) local_unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.IOServer::StdoutLock", align 1
  %4 = alloca [1 x %struct.__va_list_tag], align 16
  %5 = alloca [512 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #5
  call void @_ZN8IOServer10StdoutLockC1Ev(ptr noundef nonnull align 1 dereferenceable(1) %3)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #5
  call void @llvm.va_start.p0(ptr nonnull %4)
  call void @llvm.lifetime.start.p0(i64 512, ptr nonnull %5) #5
  invoke void @_Z15SetThisThreadIDPc(ptr noundef nonnull %5)
          to label %6 unwind label %10

6:                                                ; preds = %2
  %7 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %0, ptr noundef nonnull @.str.15, ptr noundef nonnull %5) #5
  %8 = call i32 @vfprintf(ptr noundef %0, ptr noundef %1, ptr noundef nonnull %4) #5
  call void @llvm.va_end.p0(ptr nonnull %4)
  %9 = call i32 @fflush(ptr noundef %0)
  call void @llvm.lifetime.end.p0(i64 512, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #5
  call void @_ZN8IOServer10StdoutLockD1Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #5
  ret void

10:                                               ; preds = %2
  %11 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 512, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #5
  call void @_ZN8IOServer10StdoutLockD1Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #5
  resume { ptr, i32 } %11
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_Z15SetThisThreadIDPc(ptr noundef) local_unnamed_addr #3

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #4

; Function Attrs: nofree nounwind
declare noundef i32 @vfprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ptr noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #2

; Function Attrs: nofree nounwind
declare noundef i32 @fflush(ptr nocapture noundef) local_unnamed_addr #4

declare void @_ZN8IOServer10StdoutLockC1Ev(ptr) local_unnamed_addr

declare void @_ZN8IOServer10StdoutLockD1Ev(ptr) local_unnamed_addr

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #3 = { inlinehint mustprogress 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 #4 = { 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 #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)"}


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