; LLVM IR from TobiasKozel/VAE :: external/portaudio/src/common (pa_front)

; 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"

@initializationCount_ = external hidden global i32, align 4

; 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: nounwind uwtable
define dso_local i32 @Pa_Terminate() #1 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #2
  %2 = load i32, ptr @initializationCount_, align 4, !tbaa !5
  %3 = icmp ne i32 %2, 0
  br i1 %3, label %4, label %11

4:                                                ; preds = %0
  %5 = load i32, ptr @initializationCount_, align 4, !tbaa !5
  %6 = icmp eq i32 %5, 1
  br i1 %6, label %7, label %8

7:                                                ; preds = %4
  call void @CloseOpenStreams()
  call void @TerminateHostApis()
  br label %8

8:                                                ; preds = %7, %4
  %9 = load i32, ptr @initializationCount_, align 4, !tbaa !5
  %10 = add nsw i32 %9, -1
  store i32 %10, ptr @initializationCount_, align 4, !tbaa !5
  store i32 0, ptr %1, align 4, !tbaa !5
  br label %12

11:                                               ; preds = %0
  store i32 -10000, ptr %1, align 4, !tbaa !5
  br label %12

12:                                               ; preds = %11, %8
  %13 = load i32, ptr %1, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #2
  ret i32 %13
}

; Function Attrs: nounwind uwtable
declare hidden void @CloseOpenStreams() #1

; Function Attrs: nounwind uwtable
declare hidden void @TerminateHostApis() #1

attributes #0 = { nocallback nofree nosync 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, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; 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"

@initializationCount_ = external hidden local_unnamed_addr global i32, align 4

; Function Attrs: nounwind uwtable
define dso_local range(i32 -10000, 1) i32 @Pa_Terminate() local_unnamed_addr #0 {
  %1 = load i32, ptr @initializationCount_, align 4, !tbaa !5
  switch i32 %1, label %3 [
    i32 0, label %6
    i32 1, label %2
  ]

2:                                                ; preds = %0
  tail call void @CloseOpenStreams()
  tail call void @TerminateHostApis()
  %.pre = load i32, ptr @initializationCount_, align 4, !tbaa !5
  br label %3

3:                                                ; preds = %0, %2
  %4 = phi i32 [ %1, %0 ], [ %.pre, %2 ]
  %5 = add nsw i32 %4, -1
  store i32 %5, ptr @initializationCount_, align 4, !tbaa !5
  br label %6

6:                                                ; preds = %0, %3
  %.0 = phi i32 [ 0, %3 ], [ -10000, %0 ]
  ret i32 %.0
}

; Function Attrs: nounwind uwtable
declare hidden void @CloseOpenStreams() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare hidden void @TerminateHostApis() local_unnamed_addr #0

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" }

!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"}


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