i965: Move the back-end compiler to src/intel/compiler

Mostly a dummy git mv with a couple of noticable parts:
 - With the earlier header cleanups, nothing in src/intel depends
files from src/mesa/drivers/dri/i965/
 - Both Autoconf and Android builds are addressed. Thanks to Mauro and
Tapani for the fixups in the latter
 - brw_util.[ch] is not really compiler specific, so it's moved to i965.

v2:
 - move brw_eu_defines.h instead of brw_defines.h
 - remove no-longer applicable includes
 - add missing vulkan/ prefix in the Android build (thanks Tapani)

v3:
 - don't list brw_defines.h in src/intel/Makefile.sources (Jason)
 - rebase on top of the oa patches

[Emil Velikov: commit message, various small fixes througout]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

src/intel/compiler/gen6_gs_visitor.h

@@ -0,0 +1,91 @@
+/*
+ * Copyright © 2014 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 GEN6_GS_VISITOR_H
+#define GEN6_GS_VISITOR_H
+
+#include "brw_vec4.h"
+#include "brw_vec4_gs_visitor.h"
+
+#ifdef __cplusplus
+
+namespace brw {
+
+class gen6_gs_visitor : public vec4_gs_visitor
+{
+public:
+   gen6_gs_visitor(const struct brw_compiler *comp,
+                   void *log_data,
+                   struct brw_gs_compile *c,
+                   struct brw_gs_prog_data *prog_data,
+                   struct gl_program *prog,
+                   const nir_shader *shader,
+                   void *mem_ctx,
+                   bool no_spills,
+                   int shader_time_index) :
+      vec4_gs_visitor(comp, log_data, c, prog_data, shader, mem_ctx, no_spills,
+                      shader_time_index),
+      prog(prog)
+      {
+      }
+
+protected:
+   virtual void emit_prolog();
+   virtual void emit_thread_end();
+   virtual void gs_emit_vertex(int stream_id);
+   virtual void gs_end_primitive();
+   virtual void emit_urb_write_header(int mrf);
+   virtual void emit_urb_write_opcode(bool complete,
+                                      int base_mrf,
+                                      int last_mrf,
+                                      int urb_offset);
+   virtual void setup_payload();
+
+private:
+   void xfb_write();
+   void xfb_program(unsigned vertex, unsigned num_verts);
+   void xfb_setup();
+   int get_vertex_output_offset_for_varying(int vertex, int varying);
+
+   const struct gl_program *prog;
+
+   src_reg vertex_output;
+   src_reg vertex_output_offset;
+   src_reg temp;
+   src_reg first_vertex;
+   src_reg prim_count;
+   src_reg primitive_id;
+
+   /* Transform Feedback members */
+   src_reg sol_prim_written;
+   src_reg svbi;
+   src_reg max_svbi;
+   src_reg destination_indices;
+};
+
+} /* namespace brw */
+
+#endif /* __cplusplus */
+
+#endif /* GEN6_GS_VISITOR_H */