swr/rast: Added FEClipRectangles event

and also added some comments

Reviewed-By: George Kyriazis <george.kyriazis@intel.com>

src/gallium/drivers/swr/rasterizer/core/rdtsc_core.cpp

@@ -54,6 +54,7 @@ BUCKET_DESC gCoreBuckets[] = {
     { "FEClipPoints", "", false, 0xffffffff },
     { "FEClipLines", "", false, 0xffffffff },
     { "FEClipTriangles", "", false, 0xffffffff },
+    { "FEClipRectangles", "", false, 0xffffffff },
     { "FECullZeroAreaAndBackface", "", false, 0xffffffff },
     { "FECullBetweenCenters", "", false, 0xffffffff },
     { "FEEarlyRastEnter", "", false, 0xffffffff },

src/gallium/drivers/swr/rasterizer/core/rdtsc_core.h

@@ -29,6 +29,9 @@
 
 #include <vector>
 
+///////////////////////////////////////////////////////////////////////////////
+// NOTE:  This enum MUST be kept in sync with gCoreBuckets in rdtsc_core.cpp
+///////////////////////////////////////////////////////////////////////////////
 enum CORE_BUCKETS
 {
     APIClearRenderTarget,