; LLVM IR from LeoVen/C-Macro-Collections :: examples (callbacks)

; 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.buffer = type { [100 x i32], i64, i32, ptr, ptr, ptr }

@__func__.b_push_at = external hidden unnamed_addr constant [10 x i8], align 1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memmove.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #0

; Function Attrs: nounwind uwtable
declare dso_local zeroext i1 @b_full(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @b_push_at(ptr noundef %0, i32 noundef %1, i64 noundef %2) #1 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i64, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i64 %2, ptr %7, align 8, !tbaa !11
  %8 = load i64, ptr %7, align 8, !tbaa !11
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.buffer, ptr %9, i32 0, i32 1
  %11 = load i64, ptr %10, align 8, !tbaa !13
  %12 = icmp ugt i64 %8, %11
  br i1 %12, label %13, label %16

13:                                               ; preds = %3
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.buffer, ptr %14, i32 0, i32 2
  store i32 5, ptr %15, align 8, !tbaa !15
  store i1 false, ptr %4, align 1
  br label %61

16:                                               ; preds = %3
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = call zeroext i1 @b_full(ptr noundef %17)
  br i1 %18, label %19, label %22

19:                                               ; preds = %16
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.buffer, ptr %20, i32 0, i32 2
  store i32 10, ptr %21, align 8, !tbaa !15
  store i1 false, ptr %4, align 1
  br label %61

22:                                               ; preds = %16
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.buffer, ptr %23, i32 0, i32 0
  %25 = getelementptr inbounds [100 x i32], ptr %24, i64 0, i64 0
  %26 = load i64, ptr %7, align 8, !tbaa !11
  %27 = getelementptr inbounds i32, ptr %25, i64 %26
  %28 = getelementptr inbounds i32, ptr %27, i64 1
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.buffer, ptr %29, i32 0, i32 0
  %31 = getelementptr inbounds [100 x i32], ptr %30, i64 0, i64 0
  %32 = load i64, ptr %7, align 8, !tbaa !11
  %33 = getelementptr inbounds i32, ptr %31, i64 %32
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.buffer, ptr %34, i32 0, i32 1
  %36 = load i64, ptr %35, align 8, !tbaa !13
  %37 = load i64, ptr %7, align 8, !tbaa !11
  %38 = sub i64 %36, %37
  %39 = mul i64 %38, 4
  call void @llvm.memmove.p0.p0.i64(ptr align 4 %28, ptr align 4 %33, i64 %39, i1 false)
  %40 = load i32, ptr %6, align 4, !tbaa !9
  %41 = load ptr, ptr %5, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.buffer, ptr %41, i32 0, i32 0
  %43 = load i64, ptr %7, align 8, !tbaa !11
  %44 = getelementptr inbounds [100 x i32], ptr %42, i64 0, i64 %43
  store i32 %40, ptr %44, align 4, !tbaa !9
  %45 = load ptr, ptr %5, align 8, !tbaa !5
  %46 = getelementptr inbounds %struct.buffer, ptr %45, i32 0, i32 1
  %47 = load i64, ptr %46, align 8, !tbaa !13
  %48 = add i64 %47, 1
  store i64 %48, ptr %46, align 8, !tbaa !13
  %49 = load ptr, ptr %5, align 8, !tbaa !5
  %50 = getelementptr inbounds %struct.buffer, ptr %49, i32 0, i32 2
  store i32 0, ptr %50, align 8, !tbaa !15
  %51 = load ptr, ptr %5, align 8, !tbaa !5
  %52 = getelementptr inbounds %struct.buffer, ptr %51, i32 0, i32 5
  %53 = load ptr, ptr %52, align 8, !tbaa !16
  %54 = icmp ne ptr %53, null
  br i1 %54, label %55, label %60

55:                                               ; preds = %22
  %56 = load ptr, ptr %5, align 8, !tbaa !5
  %57 = getelementptr inbounds %struct.buffer, ptr %56, i32 0, i32 5
  %58 = load ptr, ptr %57, align 8, !tbaa !16
  %59 = load ptr, ptr %5, align 8, !tbaa !5
  call void %58(ptr noundef @__func__.b_push_at, ptr noundef %59)
  br label %60

60:                                               ; preds = %55, %22
  store i1 true, ptr %4, align 1
  br label %61

61:                                               ; preds = %60, %19, %13
  %62 = load i1, ptr %4, align 1
  ret i1 %62
}

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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" }

!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 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!14, !12, i64 400}
!14 = !{!"buffer", !7, i64 0, !12, i64 400, !10, i64 408, !6, i64 416, !6, i64 424, !6, i64 432}
!15 = !{!14, !10, i64 408}
!16 = !{!14, !6, i64 432}


; 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"

@__func__.b_push_at = external hidden unnamed_addr constant [10 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memmove.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #0

; Function Attrs: nounwind uwtable
declare dso_local zeroext i1 @b_full(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local noundef zeroext i1 @b_push_at(ptr noundef %0, i32 noundef %1, i64 noundef %2) local_unnamed_addr #1 {
  %4 = getelementptr inbounds i8, ptr %0, i64 400
  %5 = load i64, ptr %4, align 8, !tbaa !5
  %6 = icmp ult i64 %5, %2
  br i1 %6, label %7, label %9

7:                                                ; preds = %3
  %8 = getelementptr inbounds i8, ptr %0, i64 408
  store i32 5, ptr %8, align 8, !tbaa !12
  br label %25

9:                                                ; preds = %3
  %10 = tail call zeroext i1 @b_full(ptr noundef nonnull %0)
  br i1 %10, label %11, label %13

11:                                               ; preds = %9
  %12 = getelementptr inbounds i8, ptr %0, i64 408
  store i32 10, ptr %12, align 8, !tbaa !12
  br label %25

13:                                               ; preds = %9
  %14 = getelementptr inbounds i32, ptr %0, i64 %2
  %15 = getelementptr inbounds i8, ptr %14, i64 4
  %16 = load i64, ptr %4, align 8, !tbaa !5
  %17 = sub i64 %16, %2
  %18 = shl i64 %17, 2
  tail call void @llvm.memmove.p0.p0.i64(ptr nonnull align 4 %15, ptr align 4 %14, i64 %18, i1 false)
  store i32 %1, ptr %14, align 4, !tbaa !13
  %19 = load i64, ptr %4, align 8, !tbaa !5
  %20 = add i64 %19, 1
  store i64 %20, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds i8, ptr %0, i64 408
  store i32 0, ptr %21, align 8, !tbaa !12
  %22 = getelementptr inbounds i8, ptr %0, i64 432
  %23 = load ptr, ptr %22, align 8, !tbaa !14
  %.not = icmp eq ptr %23, null
  br i1 %.not, label %25, label %24

24:                                               ; preds = %13
  tail call void %23(ptr noundef nonnull @__func__.b_push_at, ptr noundef nonnull %0) #2
  br label %25

25:                                               ; preds = %13, %24, %11, %7
  %.0 = phi i1 [ false, %7 ], [ false, %11 ], [ true, %24 ], [ true, %13 ]
  ret i1 %.0
}

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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, !9, i64 400}
!6 = !{!"buffer", !7, i64 0, !9, i64 400, !10, i64 408, !11, i64 416, !11, i64 424, !11, i64 432}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!"long", !7, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!6, !10, i64 408}
!13 = !{!10, !10, i64 0}
!14 = !{!6, !11, i64 432}


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