; LLVM IR from mncoppola/rpef :: utilities_src/squashfs2.1/lzma/C/7zip/Archive/7z_C (7zIn)

; 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 i32 @SzReadID(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @SzSkeepData(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @SzReadArchiveProperties(ptr noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  br label %7

7:                                                ; preds = %26, %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = call i32 @SzReadID(ptr noundef %8, ptr noundef %4)
  store i32 %9, ptr %5, align 4, !tbaa !9
  %10 = load i32, ptr %5, align 4, !tbaa !9
  %11 = icmp ne i32 %10, 0
  br i1 %11, label %12, label %14

12:                                               ; preds = %7
  %13 = load i32, ptr %5, align 4, !tbaa !9
  store i32 %13, ptr %2, align 4
  store i32 1, ptr %6, align 4
  br label %15

14:                                               ; preds = %7
  store i32 0, ptr %6, align 4
  br label %15

15:                                               ; preds = %14, %12
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  %16 = load i32, ptr %6, align 4
  switch i32 %16, label %24 [
    i32 0, label %17
  ]

17:                                               ; preds = %15
  %18 = load i64, ptr %4, align 8, !tbaa !11
  %19 = icmp eq i64 %18, 0
  br i1 %19, label %20, label %21

20:                                               ; preds = %17
  store i32 3, ptr %6, align 4
  br label %24

21:                                               ; preds = %17
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = call i32 @SzSkeepData(ptr noundef %22)
  store i32 0, ptr %6, align 4
  br label %24

24:                                               ; preds = %21, %20, %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  %25 = load i32, ptr %6, align 4
  switch i32 %25, label %30 [
    i32 0, label %26
    i32 1, label %28
    i32 3, label %27
  ]

26:                                               ; preds = %24
  br label %7

27:                                               ; preds = %24
  store i32 0, ptr %2, align 4
  br label %28

28:                                               ; preds = %27, %24
  %29 = load i32, ptr %2, align 4
  ret i32 %29

30:                                               ; preds = %24
  unreachable
}

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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long long", !7, 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"

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

; Function Attrs: nounwind uwtable
declare dso_local i32 @SzReadID(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @SzSkeepData(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @SzReadArchiveProperties(ptr noundef %0) local_unnamed_addr #1 {
  %2 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #2
  %3 = call i32 @SzReadID(ptr noundef %0, ptr noundef nonnull %2)
  %.not13 = icmp eq i32 %3, 0
  br i1 %.not13, label %.lr.ph, label %.thread

.thread:                                          ; preds = %6, %1
  %.lcssa = phi i32 [ %3, %1 ], [ %8, %6 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #2
  br label %10

.lr.ph:                                           ; preds = %1, %6
  %4 = load i64, ptr %2, align 8, !tbaa !5
  %5 = icmp eq i64 %4, 0
  br i1 %5, label %9, label %6

6:                                                ; preds = %.lr.ph
  %7 = call i32 @SzSkeepData(ptr noundef %0)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #2
  %8 = call i32 @SzReadID(ptr noundef %0, ptr noundef nonnull %2)
  %.not = icmp eq i32 %8, 0
  br i1 %.not, label %.lr.ph, label %.thread

9:                                                ; preds = %.lr.ph
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #2
  br label %10

10:                                               ; preds = %.thread, %9
  %11 = phi i32 [ %.lcssa, %.thread ], [ 0, %9 ]
  ret i32 %11
}

attributes #0 = { mustprogress 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: CorrelatedValuePropagationPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass