; 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"

%struct.PaUtilHostApiRepresentation = type { %struct.PaUtilPrivatePaFrontHostApiInfo, %struct.PaHostApiInfo, ptr, ptr, ptr, ptr }
%struct.PaUtilPrivatePaFrontHostApiInfo = type { i64 }
%struct.PaHostApiInfo = type { i32, i32, ptr, i32, i32, i32 }

@initializationCount_ = external hidden global i32, align 4
@hostApisCount_ = external hidden global i32, align 4
@hostApis_ = external hidden global ptr, align 8

; 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 ptr @Pa_GetHostApiInfo(i32 noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  %4 = load i32, ptr @initializationCount_, align 4, !tbaa !5
  %5 = icmp ne i32 %4, 0
  br i1 %5, label %7, label %6

6:                                                ; preds = %1
  store ptr null, ptr %3, align 8, !tbaa !9
  br label %23

7:                                                ; preds = %1
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = icmp slt i32 %8, 0
  br i1 %9, label %14, label %10

10:                                               ; preds = %7
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = load i32, ptr @hostApisCount_, align 4, !tbaa !5
  %13 = icmp sge i32 %11, %12
  br i1 %13, label %14, label %15

14:                                               ; preds = %10, %7
  store ptr null, ptr %3, align 8, !tbaa !9
  br label %22

15:                                               ; preds = %10
  %16 = load ptr, ptr @hostApis_, align 8, !tbaa !9
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds ptr, ptr %16, i64 %18
  %20 = load ptr, ptr %19, align 8, !tbaa !9
  %21 = getelementptr inbounds %struct.PaUtilHostApiRepresentation, ptr %20, i32 0, i32 1
  store ptr %21, ptr %3, align 8, !tbaa !9
  br label %22

22:                                               ; preds = %15, %14
  br label %23

23:                                               ; preds = %22, %6
  %24 = load ptr, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  ret ptr %24
}

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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}


; 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
@hostApisCount_ = external hidden local_unnamed_addr global i32, align 4
@hostApis_ = external hidden local_unnamed_addr global ptr, align 8

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local ptr @Pa_GetHostApiInfo(i32 noundef %0) local_unnamed_addr #0 {
  %2 = load i32, ptr @initializationCount_, align 4, !tbaa !5
  %.not = icmp eq i32 %2, 0
  br i1 %.not, label %12, label %3

3:                                                ; preds = %1
  %4 = icmp sgt i32 %0, -1
  %5 = load i32, ptr @hostApisCount_, align 4
  %.not4 = icmp sgt i32 %5, %0
  %or.cond = select i1 %4, i1 %.not4, i1 false
  br i1 %or.cond, label %6, label %12

6:                                                ; preds = %3
  %7 = load ptr, ptr @hostApis_, align 8, !tbaa !9
  %8 = zext nneg i32 %0 to i64
  %9 = getelementptr inbounds ptr, ptr %7, i64 %8
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  %11 = getelementptr inbounds i8, ptr %10, i64 8
  br label %12

12:                                               ; preds = %3, %1, %6
  %.0 = phi ptr [ %11, %6 ], [ null, %1 ], [ null, %3 ]
  ret ptr %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(read, 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, !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}


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