; LLVM IR from IlyaGrebnov/libbsc :: libbsc/coder/qlfc (qlfc)

; 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"

; 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 uwtable
declare dso_local noundef i32 @_Z24bsc_qlfc_adaptive_decodePKhPhP21QlfcStatisticalModel1(ptr noundef, ptr noundef, ptr noundef) #1

declare ptr @bsc_malloc(i64 noundef) #2

declare void @bsc_free(ptr noundef) #2

; Function Attrs: mustprogress uwtable
define dso_local i32 @bsc_qlfc_adaptive_decode_block(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %9 = call ptr @bsc_malloc(i64 noundef 3578964)
  store ptr %9, ptr %6, align 8, !tbaa !5
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = icmp ne ptr %10, null
  br i1 %11, label %12, label %19

12:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = call noundef i32 @_Z24bsc_qlfc_adaptive_decodePKhPhP21QlfcStatisticalModel1(ptr noundef %13, ptr noundef %14, ptr noundef %15)
  store i32 %16, ptr %7, align 4, !tbaa !9
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  call void @bsc_free(ptr noundef %17)
  %18 = load i32, ptr %7, align 4, !tbaa !9
  store i32 %18, ptr %3, align 4
  store i32 1, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %20

19:                                               ; preds = %2
  store i32 0, ptr %8, align 4
  br label %20

20:                                               ; preds = %19, %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %21 = load i32, ptr %8, align 4
  switch i32 %21, label %25 [
    i32 0, label %22
    i32 1, label %23
  ]

22:                                               ; preds = %20
  store i32 -2, ptr %3, align 4
  br label %23

23:                                               ; preds = %22, %20
  %24 = load i32, ptr %3, align 4
  ret i32 %24

25:                                               ; preds = %20
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 = { "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 = !{!"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}


; 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 uwtable
declare dso_local noundef i32 @_Z24bsc_qlfc_adaptive_decodePKhPhP21QlfcStatisticalModel1(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

declare ptr @bsc_malloc(i64 noundef) local_unnamed_addr #1

declare void @bsc_free(ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @bsc_qlfc_adaptive_decode_block(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = tail call ptr @bsc_malloc(i64 noundef 3578964)
  %.not.not = icmp eq ptr %3, null
  br i1 %.not.not, label %6, label %4

4:                                                ; preds = %2
  %5 = tail call noundef i32 @_Z24bsc_qlfc_adaptive_decodePKhPhP21QlfcStatisticalModel1(ptr noundef %0, ptr noundef %1, ptr noundef nonnull %3)
  tail call void @bsc_free(ptr noundef nonnull %3)
  br label %6

6:                                                ; preds = %2, %4
  %spec.select = phi i32 [ %5, %4 ], [ -2, %2 ]
  ret i32 %spec.select
}

attributes #0 = { mustprogress 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" }

!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)"}


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