; LLVM IR from sunkafei/xcpc-algorithm-templates :: 算法/数据结构/AVL Tree.ll (Z6rotateRP4nodei)

; 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.node = type { [2 x ptr], i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6rotateRP4nodei(ptr noundef nonnull align 8 dereferenceable(8) %0, i32 noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.node, ptr %7, i32 0, i32 0
  %9 = load i32, ptr %4, align 4, !tbaa !9
  %10 = xor i32 %9, 1
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds [2 x ptr], ptr %8, i64 0, i64 %11
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  store ptr %13, ptr %5, align 8, !tbaa !5
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.node, ptr %14, i32 0, i32 0
  %16 = load i32, ptr %4, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [2 x ptr], ptr %15, i64 0, i64 %17
  %19 = load ptr, ptr %18, align 8, !tbaa !5
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = load ptr, ptr %20, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.node, ptr %21, i32 0, i32 0
  %23 = load i32, ptr %4, align 4, !tbaa !9
  %24 = xor i32 %23, 1
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [2 x ptr], ptr %22, i64 0, i64 %25
  store ptr %19, ptr %26, align 8, !tbaa !5
  %27 = load ptr, ptr %3, align 8, !tbaa !5
  %28 = load ptr, ptr %27, align 8, !tbaa !5
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.node, ptr %29, i32 0, i32 0
  %31 = load i32, ptr %4, align 4, !tbaa !9
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [2 x ptr], ptr %30, i64 0, i64 %32
  store ptr %28, ptr %33, align 8, !tbaa !5
  %34 = load ptr, ptr %3, align 8, !tbaa !5
  %35 = load ptr, ptr %34, align 8, !tbaa !5
  call void @_ZN4node8maintainEv(ptr noundef nonnull align 8 dereferenceable(24) %35)
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  call void @_ZN4node8maintainEv(ptr noundef nonnull align 8 dereferenceable(24) %36)
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %37, ptr %38, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4node8maintainEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !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 uwtable
define dso_local void @_Z6rotateRP4nodei(ptr nocapture noundef nonnull align 8 dereferenceable(8) %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %4 = xor i32 %1, 1
  %5 = sext i32 %4 to i64
  %6 = getelementptr inbounds [2 x ptr], ptr %3, i64 0, i64 %5
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = sext i32 %1 to i64
  %9 = getelementptr inbounds [2 x ptr], ptr %7, i64 0, i64 %8
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  store ptr %10, ptr %6, align 8, !tbaa !5
  %11 = load ptr, ptr %0, align 8, !tbaa !5
  store ptr %11, ptr %9, align 8, !tbaa !5
  tail call void @_ZN4node8maintainEv(ptr noundef nonnull align 8 dereferenceable(24) %11)
  tail call void @_ZN4node8maintainEv(ptr noundef nonnull align 8 dereferenceable(24) %7)
  store ptr %7, ptr %0, align 8, !tbaa !5
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4node8maintainEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

attributes #0 = { mustprogress 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++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass