Remove unused but set variable flagged by GCC.

[oota-llvm.git] / lib / CodeGen / LiveIntervalUnion.cpp

diff --git a/lib/CodeGen/LiveIntervalUnion.cpp b/lib/CodeGen/LiveIntervalUnion.cpp
index 9c579aff68036b99e223c63570aae3d2cd7917a6..dadd02bfc65439d0041c5faf91996f31572dac9b 100644 (file)
--- a/lib/CodeGen/LiveIntervalUnion.cpp
+++ b/lib/CodeGen/LiveIntervalUnion.cpp
@@ -208,3 +208,26 @@ bool LiveIntervalUnion::Query::checkLoopInterference(MachineLoopRange *Loop) {
     VRI = VirtReg->advanceTo(VRI, Overlaps.start());
   }
 }
+
+void LiveIntervalUnion::Array::init(LiveIntervalUnion::Allocator &Alloc,
+                                    unsigned NSize) {
+  // Reuse existing allocation.
+  if (NSize == Size)
+    return;
+  clear();
+  Size = NSize;
+  LIUs = static_cast<LiveIntervalUnion*>(
+    malloc(sizeof(LiveIntervalUnion)*NSize));
+  for (unsigned i = 0; i != Size; ++i)
+    new(LIUs + i) LiveIntervalUnion(Alloc);
+}
+
+void LiveIntervalUnion::Array::clear() {
+  if (!LIUs)
+    return;
+  for (unsigned i = 0; i != Size; ++i)
+    LIUs[i].~LiveIntervalUnion();
+  free(LIUs);
+  Size =  0;
+  LIUs = 0;
+}