Routine, Cache: generalize, reduce amount of copying in fast path

Implement a generalized Cache<K, V>. Two variants are provided: the
first one is based on std::map, using C++14-specific transparent
std::less<> and generalized std::map::find() to allow searching by tuple
of references. The second one is based on std::vector and O(n) lookup,
but remains C++11-compliant.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/routine.hpp b/src/routine.hpp
index 2d8b2415..8e9fd54d 100644
--- a/src/routine.hpp
+++ b/src/routine.hpp
@@ -57,6 +57,9 @@ class Routine {
   // OpenCL device properties
   const std::string device_name_;
 
+  // Compiled program (either retrieved from cache or compiled in slow path)
+  Program program_;
+
   // Connection to the database for all the device-specific parameters
   const Database db_;
 };