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

; 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._CSzByteBuffer = type { i64, ptr }

; Function Attrs: nounwind uwtable
define dso_local i32 @SzByteBufferCreate(ptr noundef %0, i64 noundef %1, ptr noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i64 %1, ptr %6, align 8, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  %8 = load i64, ptr %6, align 8, !tbaa !9
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct._CSzByteBuffer, ptr %9, i32 0, i32 0
  store i64 %8, ptr %10, align 8, !tbaa !11
  %11 = load i64, ptr %6, align 8, !tbaa !9
  %12 = icmp eq i64 %11, 0
  br i1 %12, label %13, label %16

13:                                               ; preds = %3
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct._CSzByteBuffer, ptr %14, i32 0, i32 1
  store ptr null, ptr %15, align 8, !tbaa !13
  store i32 1, ptr %4, align 4
  br label %27

16:                                               ; preds = %3
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = load i64, ptr %6, align 8, !tbaa !9
  %19 = call ptr %17(i64 noundef %18)
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct._CSzByteBuffer, ptr %20, i32 0, i32 1
  store ptr %19, ptr %21, align 8, !tbaa !13
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct._CSzByteBuffer, ptr %22, i32 0, i32 1
  %24 = load ptr, ptr %23, align 8, !tbaa !13
  %25 = icmp ne ptr %24, null
  %26 = zext i1 %25 to i32
  store i32 %26, ptr %4, align 4
  br label %27

27:                                               ; preds = %16, %13
  %28 = load i32, ptr %4, align 4
  ret i32 %28
}

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, !10, i64 0}
!12 = !{!"_CSzByteBuffer", !10, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 8}


; 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
define dso_local range(i32 0, 2) i32 @SzByteBufferCreate(ptr nocapture noundef writeonly %0, i64 noundef %1, ptr nocapture noundef readonly %2) local_unnamed_addr #0 {
  store i64 %1, ptr %0, align 8, !tbaa !5
  %4 = icmp eq i64 %1, 0
  br i1 %4, label %9, label %5

5:                                                ; preds = %3
  %6 = tail call ptr %2(i64 noundef %1) #1
  %7 = icmp ne ptr %6, null
  %8 = zext i1 %7 to i32
  br label %9

9:                                                ; preds = %3, %5
  %.sink = phi ptr [ %6, %5 ], [ null, %3 ]
  %.0 = phi i32 [ %8, %5 ], [ 1, %3 ]
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr %.sink, ptr %10, align 8
  ret i32 %.0
}

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" }
attributes #1 = { 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 0}
!6 = !{!"_CSzByteBuffer", !7, i64 0, !10, i64 8}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,JumpThreadingPass,MergedLoadStoreMotionPass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass