; LLVM IR from Dev-XYS/Algorithms :: Fibonacci-Heap.ll (ZN13FibonacciHeap24_M_remove_from_root_listEPNS_4nodeE)

; 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.FibonacciHeap::node" = type <{ ptr, ptr, ptr, ptr, i32, i32, i8, [7 x i8] }>

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN13FibonacciHeap24_M_remove_from_root_listEPNS_4nodeE(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef %1) #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = getelementptr inbounds %"struct.FibonacciHeap::node", ptr %6, i32 0, i32 3
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds %"struct.FibonacciHeap::node", ptr %9, i32 0, i32 2
  %11 = load ptr, ptr %10, align 8, !tbaa !13
  %12 = getelementptr inbounds %"struct.FibonacciHeap::node", ptr %11, i32 0, i32 3
  store ptr %8, ptr %12, align 8, !tbaa !9
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds %"struct.FibonacciHeap::node", ptr %13, i32 0, i32 2
  %15 = load ptr, ptr %14, align 8, !tbaa !13
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %"struct.FibonacciHeap::node", ptr %16, i32 0, i32 3
  %18 = load ptr, ptr %17, align 8, !tbaa !9
  %19 = getelementptr inbounds %"struct.FibonacciHeap::node", ptr %18, i32 0, i32 2
  store ptr %15, ptr %19, align 8, !tbaa !13
  ret void
}

attributes #0 = { mustprogress 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++ TBAA"}
!9 = !{!10, !6, i64 24}
!10 = !{!"_ZTSN13FibonacciHeap4nodeE", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !11, i64 32, !11, i64 36, !12, i64 40}
!11 = !{!"int", !7, i64 0}
!12 = !{!"bool", !7, i64 0}
!13 = !{!10, !6, i64 16}


; 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 nofree norecurse nosync nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none) uwtable
define dso_local void @_ZN13FibonacciHeap24_M_remove_from_root_listEPNS_4nodeE(ptr nocapture noundef nonnull readnone align 8 dereferenceable(16) %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 align 2 {
  %3 = getelementptr inbounds i8, ptr %1, i64 24
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %1, i64 16
  %6 = load ptr, ptr %5, align 8, !tbaa !12
  %7 = getelementptr inbounds i8, ptr %6, i64 24
  store ptr %4, ptr %7, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %4, i64 16
  store ptr %6, ptr %8, align 8, !tbaa !12
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: none) 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, !7, i64 24}
!6 = !{!"_ZTSN13FibonacciHeap4nodeE", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !10, i64 32, !10, i64 36, !11, i64 40}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"bool", !8, i64 0}
!12 = !{!6, !7, i64 16}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass