; 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_dctx_s = type { %struct.LZ4F_frameInfo_t, i32, i32, i64, i64, i64, ptr, i64, i64, ptr, ptr, i64, ptr, i64, i64, %struct.XXH32_state_s, %struct.XXH32_state_s, [19 x i8] }
%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: nounwind uwtable
declare dso_local i64 @LZ4F_decompress(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local i64 @LZ4F_decompress_usingDict(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5, i64 noundef %6, ptr noundef %7) #0 {
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca ptr, align 8
  %13 = alloca ptr, align 8
  %14 = alloca ptr, align 8
  %15 = alloca i64, align 8
  %16 = alloca ptr, align 8
  store ptr %0, ptr %9, align 8, !tbaa !5
  store ptr %1, ptr %10, align 8, !tbaa !5
  store ptr %2, ptr %11, align 8, !tbaa !5
  store ptr %3, ptr %12, align 8, !tbaa !5
  store ptr %4, ptr %13, align 8, !tbaa !5
  store ptr %5, ptr %14, align 8, !tbaa !5
  store i64 %6, ptr %15, align 8, !tbaa !9
  store ptr %7, ptr %16, align 8, !tbaa !5
  %17 = load ptr, ptr %9, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.LZ4F_dctx_s, ptr %17, i32 0, i32 2
  %19 = load i32, ptr %18, align 4, !tbaa !11
  %20 = icmp ule i32 %19, 2
  br i1 %20, label %21, label %28

21:                                               ; preds = %8
  %22 = load ptr, ptr %14, align 8, !tbaa !5
  %23 = load ptr, ptr %9, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.LZ4F_dctx_s, ptr %23, i32 0, i32 10
  store ptr %22, ptr %24, align 8, !tbaa !17
  %25 = load i64, ptr %15, align 8, !tbaa !9
  %26 = load ptr, ptr %9, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.LZ4F_dctx_s, ptr %26, i32 0, i32 11
  store i64 %25, ptr %27, align 8, !tbaa !18
  br label %28

28:                                               ; preds = %21, %8
  %29 = load ptr, ptr %9, align 8, !tbaa !5
  %30 = load ptr, ptr %10, align 8, !tbaa !5
  %31 = load ptr, ptr %11, align 8, !tbaa !5
  %32 = load ptr, ptr %12, align 8, !tbaa !5
  %33 = load ptr, ptr %13, align 8, !tbaa !5
  %34 = load ptr, ptr %16, align 8, !tbaa !5
  %35 = call i64 @LZ4F_decompress(ptr noundef %29, ptr noundef %30, ptr noundef %31, ptr noundef %32, ptr noundef %33, ptr noundef %34)
  ret i64 %35
}

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)"}
!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}
!11 = !{!12, !14, i64 36}
!12 = !{!"LZ4F_dctx_s", !13, i64 0, !14, i64 32, !14, i64 36, !10, i64 40, !10, i64 48, !10, i64 56, !6, i64 64, !10, i64 72, !10, i64 80, !6, i64 88, !6, i64 96, !10, i64 104, !6, i64 112, !10, i64 120, !10, i64 128, !16, i64 136, !16, i64 184, !7, i64 232}
!13 = !{!"", !14, i64 0, !14, i64 4, !14, i64 8, !14, i64 12, !15, i64 16, !14, i64 24, !14, i64 28}
!14 = !{!"int", !7, i64 0}
!15 = !{!"long long", !7, i64 0}
!16 = !{!"XXH32_state_s", !14, i64 0, !14, i64 4, !14, i64 8, !14, i64 12, !14, i64 16, !14, i64 20, !7, i64 24, !14, i64 40, !14, i64 44}
!17 = !{!12, !6, i64 96}
!18 = !{!12, !10, i64 104}


; 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: nounwind uwtable
declare dso_local i64 @LZ4F_decompress(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i64 @LZ4F_decompress_usingDict(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5, i64 noundef %6, ptr noundef %7) local_unnamed_addr #0 {
  %9 = getelementptr inbounds i8, ptr %0, i64 36
  %10 = load i32, ptr %9, align 4, !tbaa !5
  %11 = icmp ult i32 %10, 3
  br i1 %11, label %12, label %15

12:                                               ; preds = %8
  %13 = getelementptr inbounds i8, ptr %0, i64 96
  store ptr %5, ptr %13, align 8, !tbaa !15
  %14 = getelementptr inbounds i8, ptr %0, i64 104
  store i64 %6, ptr %14, align 8, !tbaa !16
  br label %15

15:                                               ; preds = %12, %8
  %16 = tail call i64 @LZ4F_decompress(ptr noundef nonnull %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %7)
  ret i64 %16
}

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)"}
!5 = !{!6, !8, i64 36}
!6 = !{!"LZ4F_dctx_s", !7, i64 0, !8, i64 32, !8, i64 36, !12, i64 40, !12, i64 48, !12, i64 56, !13, i64 64, !12, i64 72, !12, i64 80, !13, i64 88, !13, i64 96, !12, i64 104, !13, i64 112, !12, i64 120, !12, i64 128, !14, i64 136, !14, i64 184, !9, i64 232}
!7 = !{!"", !8, i64 0, !8, i64 4, !8, i64 8, !8, i64 12, !11, i64 16, !8, i64 24, !8, i64 28}
!8 = !{!"int", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!"long long", !9, i64 0}
!12 = !{!"long", !9, i64 0}
!13 = !{!"any pointer", !9, i64 0}
!14 = !{!"XXH32_state_s", !8, i64 0, !8, i64 4, !8, i64 8, !8, i64 12, !8, i64 16, !8, i64 20, !9, i64 24, !8, i64 40, !8, i64 44}
!15 = !{!6, !13, i64 96}
!16 = !{!6, !12, i64 104}


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