; LLVM IR from ryanlayer/giggle :: src (metadata_index)

; 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.metadata_index = type { ptr, ptr, ptr, i8, i16, i64, ptr, ptr, ptr, i64 }

@.str.25 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.54 = external hidden unnamed_addr constant [41 x i8], align 1
@.str.58 = external hidden unnamed_addr constant [3 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: noreturn
declare void @err(i32 noundef, ptr noundef, ...) #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @metadata_index_new() #2

declare noalias ptr @fopen(ptr noundef, ptr noundef) #3

; Function Attrs: nounwind
declare noalias ptr @strdup(ptr noundef) #4

; Function Attrs: nounwind uwtable
declare dso_local void @read_metadata_index_header(ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local ptr @metadata_index_load(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %7, label %8

7:                                                ; preds = %1
  call void (i32, ptr, ...) @err(i32 noundef 1, ptr noundef @.str.54) #5
  unreachable

8:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  %9 = call ptr @metadata_index_new()
  store ptr %9, ptr %3, align 8, !tbaa !5
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = call noalias ptr @strdup(ptr noundef %10) #6
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.metadata_index, ptr %12, i32 0, i32 1
  store ptr %11, ptr %13, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = call noalias ptr @fopen(ptr noundef %14, ptr noundef @.str.58)
  store ptr %15, ptr %4, align 8, !tbaa !5
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = icmp eq ptr %16, null
  br i1 %17, label %18, label %20

18:                                               ; preds = %8
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  call void (i32, ptr, ...) @err(i32 noundef 1, ptr noundef @.str.25, ptr noundef %19) #5
  unreachable

20:                                               ; preds = %8
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.metadata_index, ptr %22, i32 0, i32 2
  store ptr %21, ptr %23, align 8, !tbaa !13
  %24 = load ptr, ptr %3, align 8, !tbaa !5
  call void @read_metadata_index_header(ptr noundef %24)
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  ret ptr %25
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { noreturn "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 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 = { "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 = { noreturn }
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/C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"metadata_index", !6, i64 0, !6, i64 8, !6, i64 16, !7, i64 24, !11, i64 26, !12, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !12, i64 64}
!11 = !{!"short", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!10, !6, i64 16}


; 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.25 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.54 = external hidden unnamed_addr constant [41 x i8], align 1
@.str.58 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: noreturn
declare void @err(i32 noundef, ptr noundef, ...) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @metadata_index_new() local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noalias noundef ptr @fopen(ptr nocapture noundef readonly, ptr nocapture noundef readonly) local_unnamed_addr #2

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite)
declare noalias ptr @strdup(ptr nocapture noundef readonly) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
declare dso_local void @read_metadata_index_header(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local ptr @metadata_index_load(ptr noundef %0) local_unnamed_addr #1 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %3, label %4

3:                                                ; preds = %1
  tail call void (i32, ptr, ...) @err(i32 noundef 1, ptr noundef nonnull @.str.54) #4
  unreachable

4:                                                ; preds = %1
  %5 = tail call ptr @metadata_index_new()
  %6 = tail call noalias ptr @strdup(ptr noundef nonnull %0) #5
  %7 = getelementptr inbounds i8, ptr %5, i64 8
  store ptr %6, ptr %7, align 8, !tbaa !5
  %8 = tail call noalias ptr @fopen(ptr noundef nonnull %0, ptr noundef nonnull @.str.58)
  %9 = icmp eq ptr %8, null
  br i1 %9, label %10, label %11

10:                                               ; preds = %4
  tail call void (i32, ptr, ...) @err(i32 noundef 1, ptr noundef nonnull @.str.25, ptr noundef nonnull %0) #4
  unreachable

11:                                               ; preds = %4
  %12 = getelementptr inbounds i8, ptr %5, i64 16
  store ptr %8, ptr %12, align 8, !tbaa !12
  tail call void @read_metadata_index_header(ptr noundef nonnull %5)
  ret ptr %5
}

attributes #0 = { noreturn "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 = { 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 = { 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 #3 = { mustprogress nofree nounwind willreturn memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 }
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, !7, i64 8}
!6 = !{!"metadata_index", !7, i64 0, !7, i64 8, !7, i64 16, !8, i64 24, !10, i64 26, !11, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !11, i64 64}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"short", !8, i64 0}
!11 = !{!"long", !8, i64 0}
!12 = !{!6, !7, i64 16}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,TailCallElimPass