; 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 @SzReadNumber(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @SzReadSize(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = call i32 @SzReadNumber(ptr noundef %9, ptr noundef %6)
  store i32 %10, ptr %7, align 4, !tbaa !9
  %11 = load i32, ptr %7, align 4, !tbaa !9
  %12 = icmp ne i32 %11, 0
  br i1 %12, label %13, label %15

13:                                               ; preds = %2
  %14 = load i32, ptr %7, align 4, !tbaa !9
  store i32 %14, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %16

15:                                               ; preds = %2
  store i32 0, ptr %8, align 4
  br label %16

16:                                               ; preds = %15, %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  %17 = load i32, ptr %8, align 4
  switch i32 %17, label %22 [
    i32 0, label %18
  ]

18:                                               ; preds = %16
  %19 = load i64, ptr %6, align 8, !tbaa !11
  %20 = trunc i64 %19 to i32
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  store i32 %20, ptr %21, align 4, !tbaa !9
  store i32 0, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %22

22:                                               ; preds = %18, %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %23 = load i32, ptr %3, align 4
  ret i32 %23
}

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 @SzReadNumber(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @SzReadSize(ptr noundef %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #1 {
  %3 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #2
  %4 = call i32 @SzReadNumber(ptr noundef %0, ptr noundef nonnull %3)
  %.not = icmp eq i32 %4, 0
  br i1 %.not, label %5, label %8

5:                                                ; preds = %2
  %6 = load i64, ptr %3, align 8, !tbaa !5
  %7 = trunc i64 %6 to i32
  store i32 %7, ptr %1, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %2, %5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #2
  ret i32 %4
}

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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}


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