; LLVM IR from buzz-lang/Buzz :: src/buzz (buzzparser)

; 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.buzzdarray_s = type { ptr, i64, i32, i32, ptr }

; 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 ptr @buzzdict_rawget(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @sym_lookup(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store ptr null, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.buzzdarray_s, ptr %10, i32 0, i32 1
  %12 = load i64, ptr %11, align 8, !tbaa !9
  %13 = sub nsw i64 %12, 1
  store i64 %13, ptr %7, align 8, !tbaa !13
  br label %14

14:                                               ; preds = %34, %2
  %15 = load i64, ptr %7, align 8, !tbaa !13
  %16 = icmp sge i64 %15, 0
  br i1 %16, label %17, label %37

17:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.buzzdarray_s, ptr %18, i32 0, i32 0
  %20 = load ptr, ptr %19, align 8, !tbaa !14
  %21 = load i64, ptr %7, align 8, !tbaa !13
  %22 = getelementptr inbounds ptr, ptr %20, i64 %21
  %23 = load ptr, ptr %22, align 8, !tbaa !5
  store ptr %23, ptr %8, align 8, !tbaa !5
  %24 = load ptr, ptr %8, align 8, !tbaa !5
  %25 = call ptr @buzzdict_rawget(ptr noundef %24, ptr noundef %4)
  store ptr %25, ptr %6, align 8, !tbaa !5
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = icmp ne ptr %26, null
  br i1 %27, label %28, label %30

28:                                               ; preds = %17
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %29, ptr %3, align 8
  store i32 1, ptr %9, align 4
  br label %31

30:                                               ; preds = %17
  store i32 0, ptr %9, align 4
  br label %31

31:                                               ; preds = %30, %28
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %32 = load i32, ptr %9, align 4
  switch i32 %32, label %38 [
    i32 0, label %33
  ]

33:                                               ; preds = %31
  br label %34

34:                                               ; preds = %33
  %35 = load i64, ptr %7, align 8, !tbaa !13
  %36 = add nsw i64 %35, -1
  store i64 %36, ptr %7, align 8, !tbaa !13
  br label %14, !llvm.loop !15

37:                                               ; preds = %14
  store ptr null, ptr %3, align 8
  store i32 1, ptr %9, align 4
  br label %38

38:                                               ; preds = %37, %31
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %39 = load ptr, ptr %3, align 8
  ret ptr %39
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = { 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, !11, i64 8}
!10 = !{!"buzzdarray_s", !6, i64 0, !11, i64 8, !12, i64 16, !12, i64 20, !6, i64 24}
!11 = !{!"long", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!11, !11, i64 0}
!14 = !{!10, !6, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; 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"

declare ptr @buzzdict_rawget(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local ptr @sym_lookup(ptr noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #1 {
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %1, i64 8
  %5 = load i64, ptr %4, align 8, !tbaa !9
  br label %6

6:                                                ; preds = %8, %2
  %.010.in = phi i64 [ %5, %2 ], [ %.010, %8 ]
  %7 = icmp sgt i64 %.010.in, 0
  br i1 %7, label %8, label %13

8:                                                ; preds = %6
  %.010 = add nsw i64 %.010.in, -1
  %9 = load ptr, ptr %1, align 8, !tbaa !13
  %10 = getelementptr inbounds ptr, ptr %9, i64 %.010
  %11 = load ptr, ptr %10, align 8, !tbaa !5
  %12 = call ptr @buzzdict_rawget(ptr noundef %11, ptr noundef nonnull %3) #2
  %.not = icmp eq ptr %12, null
  br i1 %.not, label %6, label %13, !llvm.loop !14

13:                                               ; preds = %6, %8
  %.2 = phi ptr [ %12, %8 ], [ null, %6 ]
  ret ptr %.2
}

attributes #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 = { 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 = { 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, !11, i64 8}
!10 = !{!"buzzdarray_s", !6, i64 0, !11, i64 8, !12, i64 16, !12, i64 20, !6, i64 24}
!11 = !{!"long", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !6, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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