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

; 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"

; 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 zeroext i8 @RcIsFixedBitSet() #1

; Function Attrs: nounwind uwtable
define dso_local i32 @RcGetFixed(i8 noundef zeroext %0) #1 {
  %2 = alloca i8, align 1
  %3 = alloca i32, align 4
  store i8 %0, ptr %2, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 0, ptr %3, align 4, !tbaa !8
  br label %4

4:                                                ; preds = %10, %1
  %5 = load i32, ptr %3, align 4, !tbaa !8
  %6 = shl i32 %5, 1
  %7 = call zeroext i8 @RcIsFixedBitSet()
  %8 = zext i8 %7 to i32
  %9 = or i32 %6, %8
  store i32 %9, ptr %3, align 4, !tbaa !8
  br label %10

10:                                               ; preds = %4
  %11 = load i8, ptr %2, align 1, !tbaa !5
  %12 = add i8 %11, -1
  store i8 %12, ptr %2, align 1, !tbaa !5
  %13 = zext i8 %12 to i32
  %14 = icmp sgt i32 %13, 0
  br i1 %14, label %4, label %15, !llvm.loop !10

15:                                               ; preds = %10
  %16 = load i32, ptr %3, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret i32 %16
}

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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


; 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 zeroext i8 @RcIsFixedBitSet() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i32 @RcGetFixed(i8 noundef zeroext %0) local_unnamed_addr #0 {
  br label %2

2:                                                ; preds = %2, %1
  %.03 = phi i8 [ %0, %1 ], [ %7, %2 ]
  %.0 = phi i32 [ 0, %1 ], [ %6, %2 ]
  %3 = shl i32 %.0, 1
  %4 = tail call zeroext i8 @RcIsFixedBitSet()
  %5 = zext i8 %4 to i32
  %6 = or i32 %3, %5
  %7 = add i8 %.03, -1
  %.not = icmp eq i8 %7, 0
  br i1 %.not, label %8, label %2, !llvm.loop !5

8:                                                ; preds = %2
  ret i32 %6
}

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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass