; 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_customMem = type { ptr, ptr, ptr }
%struct.ZSTD_CDict_s = type { ptr, ptr, i64, ptr, i64, %struct.ZSTD_matchState_t, %struct.ZSTD_compressedBlockState_t, %struct.ZSTD_compressionParameters, %struct.ZSTD_customMem, i32 }
%struct.ZSTD_matchState_t = type { %struct.ZSTD_window_t, i32, i32, i32, i32, ptr, ptr, ptr, %struct.optState_t }
%struct.ZSTD_window_t = type { ptr, ptr, ptr, i32, i32 }
%struct.optState_t = type { ptr, ptr, ptr, ptr, ptr, ptr, i32, i32, i32, i32, i32, i32, i32, i32, i32 }
%struct.ZSTD_compressedBlockState_t = type { %struct.ZSTD_entropyCTables_t, [3 x i32] }
%struct.ZSTD_entropyCTables_t = type { [256 x i32], [193 x i32], [363 x i32], [329 x i32], i32, i32, i32, i32 }
%struct.ZSTD_compressionParameters = type { i32, i32, i32, i32, 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 nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare void @ZSTD_free(ptr noundef, ptr noundef byval(%struct.ZSTD_customMem) align 8) #2

; Function Attrs: nounwind uwtable
define dso_local i64 @ZSTD_freeCDict(ptr noundef %0) #3 {
  %2 = alloca i64, align 8
  %3 = alloca ptr, align 8
  %4 = alloca %struct.ZSTD_customMem, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %7, label %8

7:                                                ; preds = %1
  store i64 0, ptr %2, align 8
  br label %18

8:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #4
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.ZSTD_CDict_s, ptr %9, i32 0, i32 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %4, ptr align 8 %10, i64 24, i1 false), !tbaa.struct !9
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.ZSTD_CDict_s, ptr %11, i32 0, i32 3
  %13 = load ptr, ptr %12, align 8, !tbaa !10
  call void @ZSTD_free(ptr noundef %13, ptr noundef byval(%struct.ZSTD_customMem) align 8 %4)
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.ZSTD_CDict_s, ptr %14, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8, !tbaa !21
  call void @ZSTD_free(ptr noundef %16, ptr noundef byval(%struct.ZSTD_customMem) align 8 %4)
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  call void @ZSTD_free(ptr noundef %17, ptr noundef byval(%struct.ZSTD_customMem) align 8 %4)
  store i64 0, ptr %2, align 8
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #4
  br label %18

18:                                               ; preds = %8, %7
  %19 = load i64, ptr %2, align 8
  ret i64 %19
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 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 #4 = { 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 = !{i64 0, i64 8, !5, i64 8, i64 8, !5, i64 16, i64 8, !5}
!10 = !{!11, !6, i64 24}
!11 = !{!"ZSTD_CDict_s", !6, i64 0, !6, i64 8, !12, i64 16, !6, i64 24, !12, i64 32, !13, i64 40, !17, i64 200, !19, i64 4792, !20, i64 4824, !15, i64 4848}
!12 = !{!"long", !7, i64 0}
!13 = !{!"", !14, i64 0, !15, i64 32, !15, i64 36, !15, i64 40, !15, i64 44, !6, i64 48, !6, i64 56, !6, i64 64, !16, i64 72}
!14 = !{!"", !6, i64 0, !6, i64 8, !6, i64 16, !15, i64 24, !15, i64 28}
!15 = !{!"int", !7, i64 0}
!16 = !{!"", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !15, i64 48, !15, i64 52, !15, i64 56, !15, i64 60, !15, i64 64, !15, i64 68, !15, i64 72, !15, i64 76, !15, i64 80}
!17 = !{!"", !18, i64 0, !7, i64 4580}
!18 = !{!"", !7, i64 0, !7, i64 1024, !7, i64 1796, !7, i64 3248, !15, i64 4564, !15, i64 4568, !15, i64 4572, !15, i64 4576}
!19 = !{!"", !15, i64 0, !15, i64 4, !15, i64 8, !15, i64 12, !15, i64 16, !15, i64 20, !15, i64 24}
!20 = !{!"", !6, i64 0, !6, i64 8, !6, i64 16}
!21 = !{!11, !6, 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_customMem = type { ptr, ptr, ptr }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare void @ZSTD_free(ptr noundef, ptr noundef byval(%struct.ZSTD_customMem) align 8) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local noundef i64 @ZSTD_freeCDict(ptr noundef %0) local_unnamed_addr #3 {
  %2 = alloca %struct.ZSTD_customMem, align 8
  %3 = icmp eq ptr %0, null
  br i1 %3, label %9, label %4

4:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #4
  %5 = getelementptr inbounds i8, ptr %0, i64 4824
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 8 dereferenceable(24) %5, i64 24, i1 false), !tbaa.struct !5
  %6 = getelementptr inbounds i8, ptr %0, i64 24
  %7 = load ptr, ptr %6, align 8, !tbaa !10
  tail call void @ZSTD_free(ptr noundef %7, ptr noundef nonnull byval(%struct.ZSTD_customMem) align 8 %5) #4
  %8 = load ptr, ptr %0, align 8, !tbaa !21
  tail call void @ZSTD_free(ptr noundef %8, ptr noundef nonnull byval(%struct.ZSTD_customMem) align 8 %2) #4
  tail call void @ZSTD_free(ptr noundef nonnull %0, ptr noundef nonnull byval(%struct.ZSTD_customMem) align 8 %2) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #4
  br label %9

9:                                                ; preds = %1, %4
  ret i64 0
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 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 #4 = { 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 = !{i64 0, i64 8, !6, i64 8, i64 8, !6, i64 16, i64 8, !6}
!6 = !{!7, !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !7, i64 24}
!11 = !{!"ZSTD_CDict_s", !7, i64 0, !7, i64 8, !12, i64 16, !7, i64 24, !12, i64 32, !13, i64 40, !17, i64 200, !19, i64 4792, !20, i64 4824, !15, i64 4848}
!12 = !{!"long", !8, i64 0}
!13 = !{!"", !14, i64 0, !15, i64 32, !15, i64 36, !15, i64 40, !15, i64 44, !7, i64 48, !7, i64 56, !7, i64 64, !16, i64 72}
!14 = !{!"", !7, i64 0, !7, i64 8, !7, i64 16, !15, i64 24, !15, i64 28}
!15 = !{!"int", !8, i64 0}
!16 = !{!"", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !15, i64 48, !15, i64 52, !15, i64 56, !15, i64 60, !15, i64 64, !15, i64 68, !15, i64 72, !15, i64 76, !15, i64 80}
!17 = !{!"", !18, i64 0, !8, i64 4580}
!18 = !{!"", !8, i64 0, !8, i64 1024, !8, i64 1796, !8, i64 3248, !15, i64 4564, !15, i64 4568, !15, i64 4572, !15, i64 4576}
!19 = !{!"", !15, i64 0, !15, i64 4, !15, i64 8, !15, i64 12, !15, i64 16, !15, i64 20, !15, i64 24}
!20 = !{!"", !7, i64 0, !7, i64 8, !7, i64 16}
!21 = !{!11, !7, i64 0}


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