; LLVM IR from erwincoumans/tiny-differentiable-simulator :: third_party/tiny_audio (b3AudioListener)

; 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"

%class.b3AudioListener = type { ptr, ptr }
%struct.b3AudioListenerInternalData = type <{ i32, [4 x i8], double, [128 x ptr], %class.b3WriteWavFile, i8, [7 x i8] }>
%class.b3WriteWavFile = type { ptr, 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

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN15b3AudioListener17removeSoundSourceEP13b3SoundSource(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %7

7:                                                ; preds = %29, %2
  %8 = load i32, ptr %5, align 4, !tbaa !9
  %9 = icmp slt i32 %8, 128
  br i1 %9, label %11, label %10

10:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  br label %32

11:                                               ; preds = %7
  %12 = getelementptr inbounds %class.b3AudioListener, ptr %6, i32 0, i32 1
  %13 = load ptr, ptr %12, align 8, !tbaa !11
  %14 = getelementptr inbounds %struct.b3AudioListenerInternalData, ptr %13, i32 0, i32 3
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds [128 x ptr], ptr %14, i64 0, i64 %16
  %18 = load ptr, ptr %17, align 8, !tbaa !5
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = icmp eq ptr %18, %19
  br i1 %20, label %21, label %28

21:                                               ; preds = %11
  %22 = getelementptr inbounds %class.b3AudioListener, ptr %6, i32 0, i32 1
  %23 = load ptr, ptr %22, align 8, !tbaa !11
  %24 = getelementptr inbounds %struct.b3AudioListenerInternalData, ptr %23, i32 0, i32 3
  %25 = load i32, ptr %5, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds [128 x ptr], ptr %24, i64 0, i64 %26
  store ptr null, ptr %27, align 8, !tbaa !5
  br label %28

28:                                               ; preds = %21, %11
  br label %29

29:                                               ; preds = %28
  %30 = load i32, ptr %5, align 4, !tbaa !9
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %5, align 4, !tbaa !9
  br label %7, !llvm.loop !13

32:                                               ; preds = %10
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 8}
!12 = !{!"_ZTS15b3AudioListener", !6, i64 8}
!13 = distinct !{!13, !14}
!14 = !{!"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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) uwtable
define dso_local void @_ZN15b3AudioListener17removeSoundSourceEP13b3SoundSource(ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %0, ptr noundef readnone %1) local_unnamed_addr #0 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  br label %5

4:                                                ; preds = %19
  ret void

5:                                                ; preds = %19, %2
  %indvars.iv = phi i64 [ 0, %2 ], [ %indvars.iv.next.1, %19 ]
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %6, i64 16
  %8 = getelementptr inbounds [128 x ptr], ptr %7, i64 0, i64 %indvars.iv
  %9 = load ptr, ptr %8, align 8, !tbaa !10
  %10 = icmp eq ptr %9, %1
  br i1 %10, label %11, label %12

11:                                               ; preds = %5
  store ptr null, ptr %8, align 8, !tbaa !10
  br label %12

12:                                               ; preds = %5, %11
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = getelementptr inbounds i8, ptr %13, i64 16
  %15 = getelementptr inbounds [128 x ptr], ptr %14, i64 0, i64 %indvars.iv.next
  %16 = load ptr, ptr %15, align 8, !tbaa !10
  %17 = icmp eq ptr %16, %1
  br i1 %17, label %18, label %19

18:                                               ; preds = %12
  store ptr null, ptr %15, align 8, !tbaa !10
  br label %19

19:                                               ; preds = %18, %12
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %exitcond.not.1 = icmp eq i64 %indvars.iv.next.1, 128
  br i1 %exitcond.not.1, label %4, label %5, !llvm.loop !11
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) 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, !7, i64 8}
!6 = !{!"_ZTS15b3AudioListener", !7, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!7, !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopRotatePass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass