; LLVM IR from Iotic-Labs/py-lz4framed :: lz4 (lz4frame)

; 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.LZ4F_cctx_s = type { %struct.LZ4F_preferences_t, i32, i32, ptr, i64, i64, ptr, ptr, i64, i64, %struct.XXH32_state_s, ptr, i16, i16 }
%struct.LZ4F_preferences_t = type { %struct.LZ4F_frameInfo_t, i32, i32, i32, [3 x i32] }
%struct.LZ4F_frameInfo_t = type { i32, i32, i32, i32, i64, i32, i32 }
%struct.XXH32_state_s = type { i32, i32, i32, i32, i32, i32, [4 x 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
declare void @free(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i64 @LZ4F_freeCompressionContext(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %4, ptr %3, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %15

7:                                                ; preds = %1
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.LZ4F_cctx_s, ptr %8, i32 0, i32 11
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  call void @free(ptr noundef %10) #3
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.LZ4F_cctx_s, ptr %11, i32 0, i32 6
  %13 = load ptr, ptr %12, align 8, !tbaa !18
  call void @free(ptr noundef %13) #3
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  call void @free(ptr noundef %14) #3
  br label %15

15:                                               ; preds = %7, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret i64 0
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #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/C++ TBAA"}
!9 = !{!10, !6, i64 168}
!10 = !{!"LZ4F_cctx_s", !11, i64 0, !13, i64 56, !13, i64 60, !6, i64 64, !15, i64 72, !15, i64 80, !6, i64 88, !6, i64 96, !15, i64 104, !15, i64 112, !16, i64 120, !6, i64 168, !17, i64 176, !17, i64 178}
!11 = !{!"", !12, i64 0, !13, i64 32, !13, i64 36, !13, i64 40, !7, i64 44}
!12 = !{!"", !13, i64 0, !13, i64 4, !13, i64 8, !13, i64 12, !14, i64 16, !13, i64 24, !13, i64 28}
!13 = !{!"int", !7, i64 0}
!14 = !{!"long long", !7, i64 0}
!15 = !{!"long", !7, i64 0}
!16 = !{!"XXH32_state_s", !13, i64 0, !13, i64 4, !13, i64 8, !13, i64 12, !13, i64 16, !13, i64 20, !7, i64 24, !13, i64 40, !13, i64 44}
!17 = !{!"short", !7, i64 0}
!18 = !{!10, !6, i64 88}


; 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 nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind willreturn uwtable
define dso_local noundef i64 @LZ4F_freeCompressionContext(ptr noundef %0) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %7, label %2

2:                                                ; preds = %1
  %3 = getelementptr inbounds i8, ptr %0, i64 168
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  tail call void @free(ptr noundef %4) #2
  %5 = getelementptr inbounds i8, ptr %0, i64 88
  %6 = load ptr, ptr %5, align 8, !tbaa !17
  tail call void @free(ptr noundef %6) #2
  tail call void @free(ptr noundef nonnull %0) #2
  br label %7

7:                                                ; preds = %2, %1
  ret i64 0
}

attributes #0 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { mustprogress nounwind willreturn 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, !13, i64 168}
!6 = !{!"LZ4F_cctx_s", !7, i64 0, !9, i64 56, !9, i64 60, !13, i64 64, !14, i64 72, !14, i64 80, !13, i64 88, !13, i64 96, !14, i64 104, !14, i64 112, !15, i64 120, !13, i64 168, !16, i64 176, !16, i64 178}
!7 = !{!"", !8, i64 0, !9, i64 32, !9, i64 36, !9, i64 40, !10, i64 44}
!8 = !{!"", !9, i64 0, !9, i64 4, !9, i64 8, !9, i64 12, !12, i64 16, !9, i64 24, !9, i64 28}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C/C++ TBAA"}
!12 = !{!"long long", !10, i64 0}
!13 = !{!"any pointer", !10, i64 0}
!14 = !{!"long", !10, i64 0}
!15 = !{!"XXH32_state_s", !9, i64 0, !9, i64 4, !9, i64 8, !9, i64 12, !9, i64 16, !9, i64 20, !10, i64 24, !9, i64 40, !9, i64 44}
!16 = !{!"short", !10, i64 0}
!17 = !{!6, !13, i64 88}


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