; LLVM IR from cruppstahl/upscaledb :: src/1base/error.ll (ZN9upscaledb7dbg_logEPKcz)

; 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 }

@_ZN9upscaledb7Globals14ms_error_levelE = external global i32, align 4
@_ZN9upscaledb7Globals17ms_error_functionE = external global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@_ZN9upscaledb7Globals16ms_error_handlerE = external global ptr, align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN9upscaledb7dbg_logEPKcz(ptr noundef %0, ...) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca [4096 x i8], align 16
  %5 = alloca [1 x %struct.__va_list_tag], align 16
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 0, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4096, ptr %4) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #4
  %6 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @llvm.va_start.p0(ptr %6)
  %7 = load ptr, ptr @_ZN9upscaledb7Globals17ms_error_functionE, align 8, !tbaa !5
  %8 = icmp ne ptr %7, null
  br i1 %8, label %9, label %13

9:                                                ; preds = %1
  %10 = getelementptr inbounds [4096 x i8], ptr %4, i64 0, i64 0
  %11 = load ptr, ptr @_ZN9upscaledb7Globals17ms_error_functionE, align 8, !tbaa !5
  %12 = call noundef i32 (ptr, i64, ptr, ...) @_ZN9upscaledbL12dbg_snprintfEPcmPKcz(ptr noundef %10, i64 noundef 4096, ptr noundef @.str.1, ptr noundef %11)
  store i32 %12, ptr %3, align 4, !tbaa !9
  br label %13

13:                                               ; preds = %9, %1
  %14 = getelementptr inbounds [4096 x i8], ptr %4, i64 0, i64 0
  %15 = load i32, ptr %3, align 4, !tbaa !9
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds i8, ptr %14, i64 %16
  %18 = load i32, ptr %3, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = sub i64 4096, %19
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  %23 = call noundef i32 @_ZN9upscaledb14util_vsnprintfEPcmPKcP13__va_list_tag(ptr noundef %17, i64 noundef %20, ptr noundef %21, ptr noundef %22)
  %24 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %24)
  %25 = load ptr, ptr @_ZN9upscaledb7Globals16ms_error_handlerE, align 8, !tbaa !5
  %26 = load i32, ptr @_ZN9upscaledb7Globals14ms_error_levelE, align 4, !tbaa !9
  %27 = getelementptr inbounds [4096 x i8], ptr %4, i64 0, i64 0
  call void %25(i32 noundef %26, ptr noundef %27)
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4096, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret void
}

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

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

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZN9upscaledbL12dbg_snprintfEPcmPKcz(ptr noundef, i64 noundef, ptr noundef, ...) #0

declare noundef i32 @_ZN9upscaledb14util_vsnprintfEPcmPKcP13__va_list_tag(ptr noundef, i64 noundef, ptr noundef, ptr noundef) #3

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

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

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind willreturn }
attributes #3 = { "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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !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 }

@_ZN9upscaledb7Globals14ms_error_levelE = external local_unnamed_addr global i32, align 4
@_ZN9upscaledb7Globals17ms_error_functionE = external local_unnamed_addr global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@_ZN9upscaledb7Globals16ms_error_handlerE = external local_unnamed_addr global ptr, align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN9upscaledb7dbg_logEPKcz(ptr noundef %0, ...) local_unnamed_addr #0 {
  %2 = alloca [4096 x i8], align 16
  %3 = alloca [1 x %struct.__va_list_tag], align 16
  call void @llvm.lifetime.start.p0(i64 4096, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #4
  call void @llvm.va_start.p0(ptr nonnull %3)
  %4 = load ptr, ptr @_ZN9upscaledb7Globals17ms_error_functionE, align 8, !tbaa !5
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %8, label %5

5:                                                ; preds = %1
  %6 = call noundef i32 (ptr, i64, ptr, ...) @_ZN9upscaledbL12dbg_snprintfEPcmPKcz(ptr noundef nonnull %2, i64 noundef 4096, ptr noundef nonnull @.str.1, ptr noundef nonnull %4)
  %7 = sext i32 %6 to i64
  br label %8

8:                                                ; preds = %5, %1
  %.0 = phi i64 [ %7, %5 ], [ 0, %1 ]
  %9 = getelementptr inbounds i8, ptr %2, i64 %.0
  %10 = sub nsw i64 4096, %.0
  %11 = call noundef i32 @_ZN9upscaledb14util_vsnprintfEPcmPKcP13__va_list_tag(ptr noundef nonnull %9, i64 noundef %10, ptr noundef %0, ptr noundef nonnull %3)
  call void @llvm.va_end.p0(ptr nonnull %3)
  %12 = load ptr, ptr @_ZN9upscaledb7Globals16ms_error_handlerE, align 8, !tbaa !5
  %13 = load i32, ptr @_ZN9upscaledb7Globals14ms_error_levelE, align 4, !tbaa !9
  call void %12(i32 noundef %13, ptr noundef nonnull %2)
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4096, ptr nonnull %2) #4
  ret void
}

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

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

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZN9upscaledbL12dbg_snprintfEPcmPKcz(ptr noundef, i64 noundef, ptr noundef, ...) local_unnamed_addr #0

declare noundef i32 @_ZN9upscaledb14util_vsnprintfEPcmPKcP13__va_list_tag(ptr noundef, i64 noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #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 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #3 = { "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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}


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