; LLVM IR from catid/Zpng :: zstd (zstd_compress)

; 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.ZSTD_compressionParameters = type { i32, i32, i32, i32, i32, i32, i32 }
%struct.ZSTD_parameters = type { %struct.ZSTD_compressionParameters, %struct.ZSTD_frameParameters }
%struct.ZSTD_frameParameters = type { i32, i32, i32 }

; 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
declare dso_local i64 @ZSTD_checkCParams(ptr noundef byval(%struct.ZSTD_compressionParameters) align 8) #1

; Function Attrs: nounwind uwtable
declare hidden i32 @ERR_isError(i64 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i64 @ZSTD_compress_advanced(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3, i64 noundef %4, ptr noundef %5, i64 noundef %6, ptr noundef byval(%struct.ZSTD_parameters) align 8 %7) #1 {
  %9 = alloca i64, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i64, align 8
  %13 = alloca ptr, align 8
  %14 = alloca i64, align 8
  %15 = alloca ptr, align 8
  %16 = alloca i64, align 8
  %17 = alloca i64, align 8
  %18 = alloca i32, align 4
  store ptr %0, ptr %10, align 8, !tbaa !5
  store ptr %1, ptr %11, align 8, !tbaa !5
  store i64 %2, ptr %12, align 8, !tbaa !9
  store ptr %3, ptr %13, align 8, !tbaa !5
  store i64 %4, ptr %14, align 8, !tbaa !9
  store ptr %5, ptr %15, align 8, !tbaa !5
  store i64 %6, ptr %16, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #2
  %19 = getelementptr inbounds %struct.ZSTD_parameters, ptr %7, i32 0, i32 0
  %20 = call i64 @ZSTD_checkCParams(ptr noundef byval(%struct.ZSTD_compressionParameters) align 8 %19)
  store i64 %20, ptr %17, align 8, !tbaa !9
  %21 = load i64, ptr %17, align 8, !tbaa !9
  %22 = call i32 @ERR_isError(i64 noundef %21)
  %23 = icmp ne i32 %22, 0
  br i1 %23, label %24, label %26

24:                                               ; preds = %8
  %25 = load i64, ptr %17, align 8, !tbaa !9
  store i64 %25, ptr %9, align 8
  store i32 1, ptr %18, align 4
  br label %27

26:                                               ; preds = %8
  store i32 0, ptr %18, align 4
  br label %27

27:                                               ; preds = %26, %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #2
  %28 = load i32, ptr %18, align 4
  switch i32 %28, label %40 [
    i32 0, label %29
    i32 1, label %38
  ]

29:                                               ; preds = %27
  %30 = load ptr, ptr %10, align 8, !tbaa !5
  %31 = load ptr, ptr %11, align 8, !tbaa !5
  %32 = load i64, ptr %12, align 8, !tbaa !9
  %33 = load ptr, ptr %13, align 8, !tbaa !5
  %34 = load i64, ptr %14, align 8, !tbaa !9
  %35 = load ptr, ptr %15, align 8, !tbaa !5
  %36 = load i64, ptr %16, align 8, !tbaa !9
  %37 = call i64 @ZSTD_compress_internal(ptr noundef %30, ptr noundef %31, i64 noundef %32, ptr noundef %33, i64 noundef %34, ptr noundef %35, i64 noundef %36, ptr noundef byval(%struct.ZSTD_parameters) align 8 %7)
  store i64 %37, ptr %9, align 8
  br label %38

38:                                               ; preds = %29, %27
  %39 = load i64, ptr %9, align 8
  ret i64 %39

40:                                               ; preds = %27
  unreachable
}

; Function Attrs: nounwind uwtable
declare hidden i64 @ZSTD_compress_internal(ptr noundef, ptr noundef, i64 noundef, ptr noundef, i64 noundef, ptr noundef, i64 noundef, ptr noundef byval(%struct.ZSTD_parameters) align 8) #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !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"

%struct.ZSTD_compressionParameters = type { i32, i32, i32, i32, i32, i32, i32 }
%struct.ZSTD_parameters = type { %struct.ZSTD_compressionParameters, %struct.ZSTD_frameParameters }
%struct.ZSTD_frameParameters = type { i32, i32, i32 }

; Function Attrs: nounwind uwtable
declare dso_local i64 @ZSTD_checkCParams(ptr noundef byval(%struct.ZSTD_compressionParameters) align 8) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare hidden i32 @ERR_isError(i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i64 @ZSTD_compress_advanced(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3, i64 noundef %4, ptr noundef %5, i64 noundef %6, ptr noundef byval(%struct.ZSTD_parameters) align 8 %7) local_unnamed_addr #0 {
  %9 = tail call i64 @ZSTD_checkCParams(ptr noundef nonnull byval(%struct.ZSTD_compressionParameters) align 8 %7)
  %10 = tail call i32 @ERR_isError(i64 noundef %9)
  %.not.not = icmp eq i32 %10, 0
  br i1 %.not.not, label %11, label %13

11:                                               ; preds = %8
  %12 = tail call i64 @ZSTD_compress_internal(ptr noundef %0, ptr noundef %1, i64 noundef %2, ptr noundef %3, i64 noundef %4, ptr noundef %5, i64 noundef %6, ptr noundef nonnull byval(%struct.ZSTD_parameters) align 8 %7)
  br label %13

13:                                               ; preds = %8, %11
  %.1 = phi i64 [ %9, %8 ], [ %12, %11 ]
  ret i64 %.1
}

; Function Attrs: nounwind uwtable
declare hidden i64 @ZSTD_compress_internal(ptr noundef, ptr noundef, i64 noundef, ptr noundef, i64 noundef, ptr noundef, i64 noundef, ptr noundef byval(%struct.ZSTD_parameters) align 8) 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)"}


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