SWDEV-296922 : Incorrect rounding due to integer division in rocprofiler metrics

Changed derived metrics to double from int64.
Fixed standalone test due to int64 to float change
Fixed intercept test due to int64 to float change.

Change-Id: I49631c187406ae9dd94a869b3bb13772012e8cdf

src/core/context.h

@@ -55,7 +55,7 @@ inline unsigned align_size(unsigned size, unsigned alignment) {
 template <class Map> class MetricArgs : public xml::args_cache_t {
  public:
   MetricArgs(const Map& map) : map_(map) {}
-  bool Lookup(const std::string& name, uint64_t& result) const {
+  bool Lookup(const std::string& name, double& result) const {
     rocprofiler_feature_t* info = NULL;
     auto it = map_.find(name);
     if (it == map_.end()) EXC_RAISING(HSA_STATUS_ERROR, "var '" << name << "' is not found");
@@ -311,8 +311,8 @@ class Context {
         if (it == info_map_.end())
           EXC_RAISING(HSA_STATUS_ERROR, "metric '" << name << "', rocprofiler info is not found " << this);
         rocprofiler_feature_t* info = it->second;
-        info->data.result_int64 = expr->Eval(args);
-        info->data.kind = ROCPROFILER_DATA_KIND_INT64;
+        info->data.result_double = expr->Eval(args);
+        info->data.kind = ROCPROFILER_DATA_KIND_DOUBLE;
       }
     }
   }