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

; 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.wah_bpt_non_leading_data = type { ptr, ptr }

; Function Attrs: nounwind uwtable
declare dso_local ptr @wah_init(i32 noundef) #0

; 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 memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @wah_or(ptr noundef, ptr noundef, ptr noundef, ptr noundef) #0

; Function Attrs: nounwind
declare void @free(ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @wah_non_leading_union_with_SA(i32 noundef %0, ptr noundef %1, ptr noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %12 = load ptr, ptr %6, align 8, !tbaa !9
  store ptr %12, ptr %7, align 8, !tbaa !9
  %13 = load ptr, ptr %7, align 8, !tbaa !9
  %14 = icmp ne ptr %13, null
  br i1 %14, label %15, label %40

15:                                               ; preds = %3
  %16 = load ptr, ptr %7, align 8, !tbaa !9
  %17 = getelementptr inbounds %struct.wah_bpt_non_leading_data, ptr %16, i32 0, i32 0
  %18 = load ptr, ptr %17, align 8, !tbaa !11
  %19 = icmp ne ptr %18, null
  br i1 %19, label %20, label %39

20:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %21 = load ptr, ptr %5, align 8, !tbaa !9
  store ptr %21, ptr %8, align 8, !tbaa !9
  %22 = load ptr, ptr %8, align 8, !tbaa !9
  %23 = load ptr, ptr %22, align 8, !tbaa !9
  %24 = icmp eq ptr %23, null
  br i1 %24, label %25, label %28

25:                                               ; preds = %20
  %26 = call ptr @wah_init(i32 noundef 0)
  %27 = load ptr, ptr %8, align 8, !tbaa !9
  store ptr %26, ptr %27, align 8, !tbaa !9
  br label %28

28:                                               ; preds = %25, %20
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  store ptr null, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %10, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %29 = load ptr, ptr %8, align 8, !tbaa !9
  %30 = load ptr, ptr %29, align 8, !tbaa !9
  %31 = load ptr, ptr %7, align 8, !tbaa !9
  %32 = getelementptr inbounds %struct.wah_bpt_non_leading_data, ptr %31, i32 0, i32 0
  %33 = load ptr, ptr %32, align 8, !tbaa !11
  %34 = call i32 @wah_or(ptr noundef %30, ptr noundef %33, ptr noundef %9, ptr noundef %10)
  store i32 %34, ptr %11, align 4, !tbaa !5
  %35 = load ptr, ptr %8, align 8, !tbaa !9
  %36 = load ptr, ptr %35, align 8, !tbaa !9
  call void @free(ptr noundef %36) #3
  %37 = load ptr, ptr %9, align 8, !tbaa !9
  %38 = load ptr, ptr %8, align 8, !tbaa !9
  store ptr %37, ptr %38, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %39

39:                                               ; preds = %28, %15
  br label %40

40:                                               ; preds = %39, %3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  ret void
}

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"wah_bpt_non_leading_data", !10, 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"

; Function Attrs: nounwind uwtable
declare dso_local ptr @wah_init(i32 noundef) local_unnamed_addr #0

; 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 memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @wah_or(ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local void @wah_non_leading_union_with_SA(i32 noundef %0, ptr nocapture noundef %1, ptr noundef readonly %2) local_unnamed_addr #0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %19, label %6

6:                                                ; preds = %3
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %.not10 = icmp eq ptr %7, null
  br i1 %.not10, label %19, label %8

8:                                                ; preds = %6
  %9 = load ptr, ptr %1, align 8, !tbaa !10
  %10 = icmp eq ptr %9, null
  br i1 %10, label %11, label %13

11:                                               ; preds = %8
  %12 = tail call ptr @wah_init(i32 noundef 0)
  store ptr %12, ptr %1, align 8, !tbaa !10
  %.pre = load ptr, ptr %2, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %11, %8
  %14 = phi ptr [ %.pre, %11 ], [ %7, %8 ]
  %15 = phi ptr [ %12, %11 ], [ %9, %8 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  store ptr null, ptr %4, align 8, !tbaa !10
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #3
  store i32 0, ptr %5, align 4, !tbaa !11
  %16 = call i32 @wah_or(ptr noundef %15, ptr noundef %14, ptr noundef nonnull %4, ptr noundef nonnull %5)
  %17 = load ptr, ptr %1, align 8, !tbaa !10
  call void @free(ptr noundef %17) #3
  %18 = load ptr, ptr %4, align 8, !tbaa !10
  store ptr %18, ptr %1, align 8, !tbaa !10
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  br label %19

19:                                               ; preds = %6, %13, %3
  ret void
}

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind willreturn allockind("free") 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 #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, !7, i64 0}
!6 = !{!"wah_bpt_non_leading_data", !7, i64 0, !7, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!7, !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !8, i64 0}


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