; LLVM IR from masyagin1998/GCI :: src/parser (ast)

; 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.ASSIGNMENT_EXPR_AST = type { %union.anon.1, i32 }
%union.anon.1 = type { ptr }

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [36 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [67 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [38 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: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local ptr @create_assignment_expr_ast(ptr noundef %0, i32 noundef %1) #4 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  br label %6

6:                                                ; preds = %2
  %7 = call noalias ptr @malloc(i64 noundef 16) #6
  store ptr %7, ptr %5, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  br i1 %8, label %9, label %12

9:                                                ; preds = %6
  %10 = load ptr, ptr @stderr, align 8, !tbaa !5
  %11 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %10, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 848, i64 noundef 16) #5
  call void @exit(i32 noundef 1) #7
  unreachable

12:                                               ; preds = %6
  br label %13

13:                                               ; preds = %12
  br label %14

14:                                               ; preds = %13
  %15 = load i32, ptr %4, align 4, !tbaa !9
  switch i32 %15, label %28 [
    i32 0, label %16
    i32 1, label %20
    i32 2, label %24
  ]

16:                                               ; preds = %14
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.ASSIGNMENT_EXPR_AST, ptr %18, i32 0, i32 0
  store ptr %17, ptr %19, align 8, !tbaa !11
  br label %32

20:                                               ; preds = %14
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.ASSIGNMENT_EXPR_AST, ptr %22, i32 0, i32 0
  store ptr %21, ptr %23, align 8, !tbaa !11
  br label %32

24:                                               ; preds = %14
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.ASSIGNMENT_EXPR_AST, ptr %26, i32 0, i32 0
  store ptr %25, ptr %27, align 8, !tbaa !11
  br label %32

28:                                               ; preds = %14
  %29 = load ptr, ptr @stderr, align 8, !tbaa !5
  %30 = load i32, ptr %4, align 4, !tbaa !9
  %31 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %29, ptr noundef @.str.5, i32 noundef %30) #5
  call void @exit(i32 noundef 1) #7
  unreachable

32:                                               ; preds = %24, %20, %16
  %33 = load i32, ptr %4, align 4, !tbaa !9
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.ASSIGNMENT_EXPR_AST, ptr %34, i32 0, i32 1
  store i32 %33, ptr %35, align 8, !tbaa !12
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  ret ptr %36
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind allocsize(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 "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 = { noreturn 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 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 #5 = { nounwind }
attributes #6 = { nounwind allocsize(0) }
attributes #7 = { noreturn 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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !10, i64 8}
!13 = !{!"ASSIGNMENT_EXPR_AST", !7, i64 0, !10, i64 8}


; 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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [36 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [67 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [38 x i8], align 1

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local noalias noundef ptr @create_assignment_expr_ast(ptr noundef %0, i32 noundef %1) local_unnamed_addr #3 {
  %3 = tail call noalias dereferenceable_or_null(16) ptr @malloc(i64 noundef 16) #4
  %4 = icmp eq ptr %3, null
  br i1 %4, label %5, label %8

5:                                                ; preds = %2
  %6 = load ptr, ptr @stderr, align 8, !tbaa !5
  %7 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %6, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 848, i64 noundef 16) #5
  tail call void @exit(i32 noundef 1) #6
  unreachable

8:                                                ; preds = %2
  %switch = icmp ult i32 %1, 3
  br i1 %switch, label %12, label %9

9:                                                ; preds = %8
  %10 = load ptr, ptr @stderr, align 8, !tbaa !5
  %11 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %10, ptr noundef nonnull @.str.5, i32 noundef %1) #5
  tail call void @exit(i32 noundef 1) #6
  unreachable

12:                                               ; preds = %8
  store ptr %0, ptr %3, align 8, !tbaa !9
  %13 = getelementptr inbounds i8, ptr %3, i64 8
  store i32 %1, ptr %13, align 8, !tbaa !10
  ret ptr %3
}

attributes #0 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(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 #1 = { 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 #2 = { noreturn 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 = { 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 #4 = { nounwind allocsize(0) }
attributes #5 = { cold nounwind }
attributes #6 = { noreturn 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 = !{!7, !7, i64 0}
!10 = !{!11, !12, i64 8}
!11 = !{!"ASSIGNMENT_EXPR_AST", !7, i64 0, !12, i64 8}
!12 = !{!"int", !7, i64 0}


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