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diff --git a/src/intel/compiler/brw_ir_performance.h b/src/intel/compiler/brw_ir_performance.h
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+++ b/src/intel/compiler/brw_ir_performance.h
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+/* -*- c++ -*- */
+/*
+ * Copyright © 2020 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef BRW_IR_PERFORMANCE_H
+#define BRW_IR_PERFORMANCE_H
+
+class fs_visitor;
+
+namespace brw {
+   class vec4_visitor;
+
+   /**
+    * Various estimates of the performance of a shader based on static
+    * analysis.
+    */
+   struct performance {
+      performance(const fs_visitor *v);
+      performance(const vec4_visitor *v);
+      ~performance();
+
+      analysis_dependency_class
+      dependency_class() const
+      {
+         return (DEPENDENCY_INSTRUCTIONS |
+                 DEPENDENCY_BLOCKS);
+      }
+
+      bool
+      validate(const backend_shader *) const
+      {
+         return true;
+      }
+
+      /**
+       * Array containing estimates of the runtime of each basic block of the
+       * program in cycle units.
+       */
+      unsigned *block_latency;
+
+      /**
+       * Estimate of the runtime of the whole program in cycle units assuming
+       * uncontended execution.
+       */
+      unsigned latency;
+
+      /**
+       * Estimate of the throughput of the whole program in
+       * invocations-per-cycle units.
+       *
+       * Note that this might be lower than the ratio between the dispatch
+       * width of the program and its latency estimate in cases where
+       * performance doesn't scale without limits as a function of its thread
+       * parallelism, e.g. due to the existence of a bottleneck in a shared
+       * function.
+       */
+      float throughput;
+
+   private:
+      performance(const performance &perf);
+      performance &
+      operator=(performance u);
+   };
+}
+
+#endif