[turbofan] Readjust has_slot_use after splintering

src/compiler/live-range-separator.cc

Index: src/compiler/live-range-separator.cc
diff --git a/src/compiler/live-range-separator.cc b/src/compiler/live-range-separator.cc
index e3cd0a3137deea497aefa22c14b883a99b4c830c..db655939062bb7510d3b44c081a1c3c89f02cff4 100644
--- a/src/compiler/live-range-separator.cc
+++ b/src/compiler/live-range-separator.cc
@@ -58,6 +58,15 @@ void CreateSplinter(TopLevelLiveRange *range, RegisterAllocationData *data,
   }
 }
 
+void SetSlotUse(TopLevelLiveRange *range) {
+  range->set_has_slot_use(false);
+  for (const UsePosition *pos = range->first_pos();
+       !range->has_slot_use() && pos != nullptr; pos = pos->next()) {
+    if (pos->type() == UsePositionType::kRequiresSlot) {
+      range->set_has_slot_use(true);
+    }
+  }
+}
 
 void SplinterLiveRange(TopLevelLiveRange *range, RegisterAllocationData *data) {
   const InstructionSequence *code = data->code();
@@ -99,7 +108,14 @@ void SplinterLiveRange(TopLevelLiveRange *range, RegisterAllocationData *data) {
   if (first_cut.IsValid()) {
     CreateSplinter(range, data, first_cut, last_cut);
   }
+
+  // Redo has_slot_use
+  if (range->has_slot_use() && range->splinter() != nullptr) {
+    SetSlotUse(range);
+    SetSlotUse(range->splinter());
+  }
 }
+
 }  // namespace