vendor/llvm/llvm-release_350-r216957

1 files changed, 5 insertions, 2 deletions

diff --git a/lib/CodeGen/LiveRegMatrix.cpp b/lib/CodeGen/LiveRegMatrix.cpp
index 1d801ac914ab..de2ce22f7fbf 100644
--- a/lib/CodeGen/LiveRegMatrix.cpp
+++ b/lib/CodeGen/LiveRegMatrix.cpp
@@ -11,7 +11,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-#define DEBUG_TYPE "regalloc"
 #include "llvm/CodeGen/LiveRegMatrix.h"
 #include "RegisterCoalescer.h"
 #include "llvm/ADT/Statistic.h"
@@ -25,6 +24,8 @@
 
 using namespace llvm;
 
+#define DEBUG_TYPE "regalloc"
+
 STATISTIC(NumAssigned   , "Number of registers assigned");
 STATISTIC(NumUnassigned , "Number of registers unassigned");
 
@@ -65,7 +66,9 @@ bool LiveRegMatrix::runOnMachineFunction(MachineFunction &MF) {
 void LiveRegMatrix::releaseMemory() {
   for (unsigned i = 0, e = Matrix.size(); i != e; ++i) {
     Matrix[i].clear();
-    Queries[i].clear();
+    // No need to clear Queries here, since LiveIntervalUnion::Query doesn't
+    // have anything important to clear and LiveRegMatrix's runOnFunction()
+    // does a std::unique_ptr::reset anyways.
   }
 }