; LLVM IR from ionescu007/minlzma :: minlzlib (lzmadec)

; 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._DECODER_STATE = type { i32, i32, i32, i32, i32, i32, %union.anon }
%union.anon = type { %struct.anon }
%struct.anon = type { [8 x [768 x i16]], [12 x i16], [12 x i16], [12 x [4 x i16]], [12 x i16], [12 x i16], %struct._LENGTH_DECODER_STATE, [12 x [4 x i16]], [4 x [64 x i16]], [114 x i16], [16 x i16], %struct._LENGTH_DECODER_STATE }
%struct._LENGTH_DECODER_STATE = type { i16, i16, [4 x [8 x i16]], [4 x [8 x i16]], [256 x i16] }

@Decoder = external dso_local global %struct._DECODER_STATE, align 4

; 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
define dso_local ptr @LzGetDistSlot() #1 {
  %1 = alloca i8, align 1
  call void @llvm.lifetime.start.p0(i64 1, ptr %1) #2
  %2 = load i32, ptr getelementptr inbounds (%struct._DECODER_STATE, ptr @Decoder, i32 0, i32 5), align 4, !tbaa !5
  %3 = icmp ult i32 %2, 6
  br i1 %3, label %4, label %8

4:                                                ; preds = %0
  %5 = load i32, ptr getelementptr inbounds (%struct._DECODER_STATE, ptr @Decoder, i32 0, i32 5), align 4, !tbaa !5
  %6 = sub i32 %5, 2
  %7 = trunc i32 %6 to i8
  store i8 %7, ptr %1, align 1, !tbaa !10
  br label %9

8:                                                ; preds = %0
  store i8 3, ptr %1, align 1, !tbaa !10
  br label %9

9:                                                ; preds = %8, %4
  %10 = load i8, ptr %1, align 1, !tbaa !10
  %11 = zext i8 %10 to i64
  %12 = getelementptr inbounds [4 x [64 x i16]], ptr getelementptr inbounds (%struct.anon, ptr getelementptr inbounds (%struct._DECODER_STATE, ptr @Decoder, i32 0, i32 6), i32 0, i32 8), i64 0, i64 %11
  %13 = getelementptr inbounds [64 x i16], ptr %12, i64 0, i64 0
  call void @llvm.lifetime.end.p0(i64 1, ptr %1) #2
  ret ptr %13
}

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, !7, i64 20}
!6 = !{!"_DECODER_STATE", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !7, i64 20, !8, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!8, !8, 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._DECODER_STATE = type { i32, i32, i32, i32, i32, i32, %union.anon }
%union.anon = type { %struct.anon }
%struct.anon = type { [8 x [768 x i16]], [12 x i16], [12 x i16], [12 x [4 x i16]], [12 x i16], [12 x i16], %struct._LENGTH_DECODER_STATE, [12 x [4 x i16]], [4 x [64 x i16]], [114 x i16], [16 x i16], %struct._LENGTH_DECODER_STATE }
%struct._LENGTH_DECODER_STATE = type { i16, i16, [4 x [8 x i16]], [4 x [8 x i16]], [256 x i16] }

@Decoder = external dso_local global %struct._DECODER_STATE, align 4

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(read, argmem: none, inaccessiblemem: none) uwtable
define dso_local nonnull ptr @LzGetDistSlot() local_unnamed_addr #0 {
  %1 = load i32, ptr getelementptr inbounds (i8, ptr @Decoder, i64 20), align 4, !tbaa !5
  %2 = icmp ult i32 %1, 6
  %narrow = add nuw nsw i32 %1, 254
  %3 = and i32 %narrow, 255
  %narrow2 = select i1 %2, i32 %3, i32 3
  %.0 = zext nneg i32 %narrow2 to i64
  %4 = getelementptr inbounds [4 x [64 x i16]], ptr getelementptr inbounds (i8, ptr @Decoder, i64 13244), i64 0, i64 %.0
  ret ptr %4
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(read, argmem: none, inaccessiblemem: none) 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, !7, i64 20}
!6 = !{!"_DECODER_STATE", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !7, i64 20, !8, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}


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