; 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
@.str.2 = external hidden unnamed_addr constant [95 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [90 x i8], align 1
@__PRETTY_FUNCTION__.Pa_Initialize = external hidden unnamed_addr constant [28 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @Pa_Initialize() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #4
  %3 = load i32, ptr @initializationCount_, align 4, !tbaa !5
  %4 = icmp ne i32 %3, 0
  br i1 %4, label %5, label %8

5:                                                ; preds = %0
  %6 = load i32, ptr @initializationCount_, align 4, !tbaa !5
  %7 = add nsw i32 %6, 1
  store i32 %7, ptr @initializationCount_, align 4, !tbaa !5
  store i32 0, ptr %1, align 4, !tbaa !5
  br label %24

8:                                                ; preds = %0
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #4
  store i64 1, ptr %2, align 8, !tbaa !9
  br i1 true, label %9, label %15

9:                                                ; preds = %8
  %10 = getelementptr inbounds i8, ptr %2, i64 0
  %11 = load i8, ptr %10, align 8, !tbaa !11
  %12 = sext i8 %11 to i32
  %13 = icmp eq i32 %12, 1
  br i1 %13, label %14, label %15

14:                                               ; preds = %9
  br label %16

15:                                               ; preds = %9, %8
  call void @__assert_fail(ptr noundef @.str.2, ptr noundef @.str.3, i32 noundef 366, ptr noundef @__PRETTY_FUNCTION__.Pa_Initialize) #5
  unreachable

16:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #4
  call void @PaUtil_InitializeClock()
  %17 = call i32 @InitializeHostApis()
  store i32 %17, ptr %1, align 4, !tbaa !5
  %18 = load i32, ptr %1, align 4, !tbaa !5
  %19 = icmp eq i32 %18, 0
  br i1 %19, label %20, label %23

20:                                               ; preds = %16
  %21 = load i32, ptr @initializationCount_, align 4, !tbaa !5
  %22 = add nsw i32 %21, 1
  store i32 %22, ptr @initializationCount_, align 4, !tbaa !5
  br label %23

23:                                               ; preds = %20, %16
  br label %24

24:                                               ; preds = %23, %5
  %25 = load i32, ptr %1, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #4
  ret i32 %25
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare void @PaUtil_InitializeClock() #3

; Function Attrs: nounwind uwtable
declare hidden i32 @InitializeHostApis() #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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { noreturn 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 = { "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 #4 = { nounwind }
attributes #5 = { noreturn 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 = !{!"long", !7, i64 0}
!11 = !{!7, !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

; Function Attrs: nounwind uwtable
define dso_local i32 @Pa_Initialize() local_unnamed_addr #0 {
  %1 = load i32, ptr @initializationCount_, align 4, !tbaa !5
  %.not = icmp eq i32 %1, 0
  br i1 %.not, label %2, label %.sink.split

2:                                                ; preds = %0
  tail call void @PaUtil_InitializeClock() #2
  %3 = tail call i32 @InitializeHostApis()
  %4 = icmp eq i32 %3, 0
  br i1 %4, label %5, label %8

5:                                                ; preds = %2
  %6 = load i32, ptr @initializationCount_, align 4, !tbaa !5
  br label %.sink.split

.sink.split:                                      ; preds = %0, %5
  %.sink4 = phi i32 [ %6, %5 ], [ %1, %0 ]
  %7 = add nsw i32 %.sink4, 1
  store i32 %7, ptr @initializationCount_, align 4, !tbaa !5
  br label %8

8:                                                ; preds = %.sink.split, %2
  %.0 = phi i32 [ %3, %2 ], [ 0, %.sink.split ]
  ret i32 %.0
}

declare void @PaUtil_InitializeClock() local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare hidden i32 @InitializeHostApis() 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" }
attributes #1 = { "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"}


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