V4: relieve more memory allocator pressure.

For _ZN13BenchmarkDemo11initPhysicsEv from the Octane testsuite, the
total allocated memory drops from 1.5GB to 51MB. Peak memory usage stays
at 29MB.

Again, slow implementations of malloc()/free() will see a performance
improvement.

Change-Id: I21bc2f0d3735de0980fc9b3745906016e2e48a61
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/qml/compiler/qv4regalloc.cpp b/src/qml/compiler/qv4regalloc.cpp
index df1687f267..3521d0c27a 100644
--- a/src/qml/compiler/qv4regalloc.cpp
+++ b/src/qml/compiler/qv4regalloc.cpp
@@ -1464,9 +1464,9 @@ int RegisterAllocator::nextIntersection(const LifeTimeInterval &current,
         return -1;
 
     for (int currentEnd = currentRanges.size(); currentIt < currentEnd; ++currentIt) {
-        const LifeTimeInterval::Range &currentRange = currentRanges[currentIt];
+        const LifeTimeInterval::Range currentRange = currentRanges.at(currentIt);
         for (int anotherIt = anotherItStart, anotherEnd = anotherRanges.size(); anotherIt < anotherEnd; ++anotherIt) {
-            const LifeTimeInterval::Range &anotherRange = anotherRanges[anotherIt];
+            const LifeTimeInterval::Range anotherRange = anotherRanges.at(anotherIt);
             if (anotherRange.start > currentRange.end)
                 break;
             int intersectPos = intersectionPosition(currentRange, anotherRange);