V4 JIT: generate some strict (not) equal conditions

Checks for strict (not) equal to null, undefined, or a boolean value
can be generated without reserving extra registers, or doing a call.

This reduces the amount of runtime calls from >25mln to ~6500 for
v8-bench.js

Change-Id: If08d1124b2869227654b1233a89833c5b5e7b40c
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/src/qml/jsruntime/qv4runtime.cpp b/src/qml/jsruntime/qv4runtime.cpp
index b8b62c1bb7..6e566953c7 100644
--- a/src/qml/jsruntime/qv4runtime.cpp
+++ b/src/qml/jsruntime/qv4runtime.cpp
@@ -139,6 +139,7 @@ struct RuntimeCounters::Data {
     };
 
     void dump() const {
+        QTextStream outs(stderr, QIODevice::WriteOnly);
         QList<Line> lines;
         foreach (const char *func, counters.keys()) {
             const Counters &fCount = counters[func];
@@ -154,9 +155,13 @@ struct RuntimeCounters::Data {
             }
         }
         qSort(lines.begin(), lines.end(), Line::less);
-        qDebug() << "Counters:";
+        outs << lines.size() << " counters:" << endl;
         foreach (const Line &line, lines)
-            qDebug("%10ld | %s | %s | %s", line.count, line.func, pretty(line.tag1), pretty(line.tag2));
+            outs << qSetFieldWidth(10) << line.count << qSetFieldWidth(0)
+                 << " | " << line.func
+                 << " | " << pretty(line.tag1)
+                 << " | " << pretty(line.tag2)
+                 << endl;
     }
 };
 
@@ -172,6 +177,7 @@ RuntimeCounters::RuntimeCounters()
 RuntimeCounters::~RuntimeCounters()
 {
     d->dump();
+    delete d;
 }
 
 void RuntimeCounters::count(const char *func, uint tag)