; LLVM IR from albertobsd/keyhunt :: bsgsd.ll (Z15bsgs_myheapsortP11bsgs_xvaluel)

; 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.bsgs_xvalue = type { [6 x i8], i64 }

; 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: mustprogress nounwind uwtable
declare dso_local void @_Z9bsgs_swapP11bsgs_xvalueS0_(ptr noundef, ptr noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z15bsgs_myheapsortP11bsgs_xvaluel(ptr noundef %0, i64 noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %6 = load i64, ptr %4, align 8, !tbaa !9
  %7 = sdiv i64 %6, 2
  %8 = sub nsw i64 %7, 1
  store i64 %8, ptr %5, align 8, !tbaa !9
  br label %9

9:                                                ; preds = %16, %2
  %10 = load i64, ptr %5, align 8, !tbaa !9
  %11 = icmp sge i64 %10, 0
  br i1 %11, label %12, label %19

12:                                               ; preds = %9
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = load i64, ptr %4, align 8, !tbaa !9
  %15 = load i64, ptr %5, align 8, !tbaa !9
  call void @_Z12bsgs_heapifyP11bsgs_xvaluell(ptr noundef %13, i64 noundef %14, i64 noundef %15)
  br label %16

16:                                               ; preds = %12
  %17 = load i64, ptr %5, align 8, !tbaa !9
  %18 = add nsw i64 %17, -1
  store i64 %18, ptr %5, align 8, !tbaa !9
  br label %9, !llvm.loop !11

19:                                               ; preds = %9
  %20 = load i64, ptr %4, align 8, !tbaa !9
  %21 = sub nsw i64 %20, 1
  store i64 %21, ptr %5, align 8, !tbaa !9
  br label %22

22:                                               ; preds = %33, %19
  %23 = load i64, ptr %5, align 8, !tbaa !9
  %24 = icmp sgt i64 %23, 0
  br i1 %24, label %25, label %36

25:                                               ; preds = %22
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.bsgs_xvalue, ptr %26, i64 0
  %28 = load ptr, ptr %3, align 8, !tbaa !5
  %29 = load i64, ptr %5, align 8, !tbaa !9
  %30 = getelementptr inbounds %struct.bsgs_xvalue, ptr %28, i64 %29
  call void @_Z9bsgs_swapP11bsgs_xvalueS0_(ptr noundef %27, ptr noundef %30)
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = load i64, ptr %5, align 8, !tbaa !9
  call void @_Z12bsgs_heapifyP11bsgs_xvaluell(ptr noundef %31, i64 noundef %32, i64 noundef 0)
  br label %33

33:                                               ; preds = %25
  %34 = load i64, ptr %5, align 8, !tbaa !9
  %35 = add nsw i64 %34, -1
  store i64 %35, ptr %5, align 8, !tbaa !9
  br label %22, !llvm.loop !13

36:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z12bsgs_heapifyP11bsgs_xvaluell(ptr noundef, i64 noundef, i64 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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" }
attributes #2 = { 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 #3 = { 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 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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"

%struct.bsgs_xvalue = type { [6 x i8], i64 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z9bsgs_swapP11bsgs_xvalueS0_(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z15bsgs_myheapsortP11bsgs_xvaluel(ptr noundef %0, i64 noundef %1) local_unnamed_addr #1 {
  %3 = icmp sgt i64 %1, 1
  br i1 %3, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %2
  %4 = lshr i64 %1, 1
  br label %.lr.ph

.preheader:                                       ; preds = %.lr.ph
  br i1 %3, label %.lr.ph15, label %._crit_edge

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %.0.in13 = phi i64 [ %.0, %.lr.ph ], [ %4, %.lr.ph.preheader ]
  %.0 = add nsw i64 %.0.in13, -1
  tail call void @_Z12bsgs_heapifyP11bsgs_xvaluell(ptr noundef %0, i64 noundef %1, i64 noundef %.0)
  %5 = icmp ugt i64 %.0.in13, 1
  br i1 %5, label %.lr.ph, label %.preheader, !llvm.loop !5

.lr.ph15:                                         ; preds = %.preheader, %.lr.ph15
  %.1.in14 = phi i64 [ %.1, %.lr.ph15 ], [ %1, %.preheader ]
  %.1 = add nsw i64 %.1.in14, -1
  %6 = getelementptr inbounds %struct.bsgs_xvalue, ptr %0, i64 %.1
  tail call void @_Z9bsgs_swapP11bsgs_xvalueS0_(ptr noundef %0, ptr noundef %6)
  tail call void @_Z12bsgs_heapifyP11bsgs_xvaluell(ptr noundef %0, i64 noundef %.1, i64 noundef 0)
  %7 = icmp ugt i64 %.1.in14, 2
  br i1 %7, label %.lr.ph15, label %._crit_edge, !llvm.loop !7

._crit_edge:                                      ; preds = %.lr.ph15, %2, %.preheader
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z12bsgs_heapifyP11bsgs_xvaluell(ptr noundef, i64 noundef, i64 noundef) local_unnamed_addr #1

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" }
attributes #1 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = distinct !{!7, !6}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass