; LLVM IR from Dimandragon/non-parametric-dsp :: alglib-cpp/src/ap.ll (ZN11alglib_impl8ae_traceEPKcz)

; 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.__va_list_tag = type { i32, i32, ptr, ptr }

@_ZN11alglib_impl17alglib_trace_fileE = external dso_local global ptr, align 8
@_ZN11alglib_implL17alglib_trace_typeE = external hidden global i64, align 8

; 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: mustprogress uwtable
define dso_local void @_ZN11alglib_impl8ae_traceEPKcz(ptr noundef %0, ...) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca [1 x %struct.__va_list_tag], align 16
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load i64, ptr @_ZN11alglib_implL17alglib_trace_typeE, align 8, !tbaa !9
  %5 = icmp eq i64 %4, 1
  br i1 %5, label %6, label %18

6:                                                ; preds = %1
  %7 = load ptr, ptr @_ZN11alglib_impl17alglib_trace_fileE, align 8, !tbaa !5
  %8 = icmp ne ptr %7, null
  br i1 %8, label %9, label %18

9:                                                ; preds = %6
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #5
  %10 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %3, i64 0, i64 0
  call void @llvm.va_start.p0(ptr %10)
  %11 = load ptr, ptr @_ZN11alglib_impl17alglib_trace_fileE, align 8, !tbaa !5
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %3, i64 0, i64 0
  %14 = call i32 @vfprintf(ptr noundef %11, ptr noundef %12, ptr noundef %13) #5
  %15 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %3, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %15)
  %16 = load ptr, ptr @_ZN11alglib_impl17alglib_trace_fileE, align 8, !tbaa !5
  %17 = call i32 @fflush(ptr noundef %16)
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  br label %18

18:                                               ; preds = %9, %6, %1
  ret void
}

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

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

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

declare i32 @fflush(ptr noundef) #4

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 = { 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 = { "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)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"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"

%struct.__va_list_tag = type { i32, i32, ptr, ptr }

@_ZN11alglib_impl17alglib_trace_fileE = external dso_local local_unnamed_addr global ptr, align 8
@_ZN11alglib_implL17alglib_trace_typeE = external hidden local_unnamed_addr global i64, align 8

; 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

; Function Attrs: mustprogress nofree nounwind uwtable
define dso_local void @_ZN11alglib_impl8ae_traceEPKcz(ptr nocapture noundef readonly %0, ...) local_unnamed_addr #1 {
  %2 = alloca [1 x %struct.__va_list_tag], align 16
  %3 = load i64, ptr @_ZN11alglib_implL17alglib_trace_typeE, align 8, !tbaa !5
  %4 = icmp eq i64 %3, 1
  %5 = load ptr, ptr @_ZN11alglib_impl17alglib_trace_fileE, align 8
  %6 = icmp ne ptr %5, null
  %or.cond = select i1 %4, i1 %6, i1 false
  br i1 %or.cond, label %7, label %12

7:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #4
  call void @llvm.va_start.p0(ptr nonnull %2)
  %8 = load ptr, ptr @_ZN11alglib_impl17alglib_trace_fileE, align 8, !tbaa !9
  %9 = call i32 @vfprintf(ptr noundef %8, ptr noundef %0, ptr noundef nonnull %2) #4
  call void @llvm.va_end.p0(ptr nonnull %2)
  %10 = load ptr, ptr @_ZN11alglib_impl17alglib_trace_fileE, align 8, !tbaa !9
  %11 = call i32 @fflush(ptr noundef %10)
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #4
  br label %12

12:                                               ; preds = %7, %1
  ret void
}

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

; Function Attrs: nofree nounwind
declare noundef i32 @vfprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ptr noundef) local_unnamed_addr #3

; 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 #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nofree 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 = { mustprogress nocallback nofree nosync nounwind willreturn }
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 = { 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}


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