ART: Remove a BasicBlock's fall_through pointer in Hide()

Remove the fall_through link that a BasicBlock has to its child when
calling its Hide function.  Useful for removing the visible link that is
there when we dump the CFG.

Change-Id: Ie82c48b195d1d62e2984d284dcc29ed7d7444db2
Signed-off-by: Jean Christophe Beyler <jean.christophe.beyler@intel.com>

diff --git a/compiler/dex/mir_graph.cc b/compiler/dex/mir_graph.cc
index dee1361..baaf006 100644 (file)
--- a/compiler/dex/mir_graph.cc
+++ b/compiler/dex/mir_graph.cc
@@ -2068,6 +2068,11 @@ void BasicBlock::Hide(CompilationUnit* c_unit) {
     // Replace child with null child.
     childPtr->predecessors->Delete(id);
   }
+
+  // Remove link to children.
+  taken = NullBasicBlockId;
+  fall_through = NullBasicBlockId;
+  successor_block_list_type = kNotUsed;
 }
 
 bool BasicBlock::IsSSALiveOut(const CompilationUnit* c_unit, int ssa_reg) {