[Mesa-dev] [PATCH 15/21] i965: Define consistent interface to predicate an instruction.

[Francisco Jerez]

---
 src/mesa/drivers/dri/i965/brw_ir_fs.h    | 22 ++++++++++++++++++++++
 src/mesa/drivers/dri/i965/brw_ir_svec4.h | 26 ++++++++++++++++++++++++++
 src/mesa/drivers/dri/i965/brw_ir_vec4.h  | 22 ++++++++++++++++++++++
 3 files changed, 70 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_ir_fs.h b/src/mesa/drivers/dri/i965/brw_ir_fs.h
index 1bbe164..b2dfa00 100644
--- a/src/mesa/drivers/dri/i965/brw_ir_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_ir_fs.h
@@ -329,4 +329,26 @@ exec_all(fs_inst *inst)
    return inst;
 }
 
+/**
+ * Make the execution of \p inst dependent on the evaluation of a possibly
+ * inverted predicate.
+ */
+static inline fs_inst *
+exec_predicate_inv(enum brw_predicate pred, bool inverse,
+                   fs_inst *inst)
+{
+   inst->predicate = pred;
+   inst->predicate_inverse = inverse;
+   return inst;
+}
+
+/**
+ * Make the execution of \p inst dependent on the evaluation of a predicate.
+ */
+static inline fs_inst *
+exec_predicate(enum brw_predicate pred, fs_inst *inst)
+{
+   return exec_predicate_inv(pred, false, inst);
+}
+
 #endif
diff --git a/src/mesa/drivers/dri/i965/brw_ir_svec4.h b/src/mesa/drivers/dri/i965/brw_ir_svec4.h
index f4585d7..58c04c1 100644
--- a/src/mesa/drivers/dri/i965/brw_ir_svec4.h
+++ b/src/mesa/drivers/dri/i965/brw_ir_svec4.h
@@ -381,6 +381,32 @@ namespace brw {
 
       return inst;
    }
+
+   /**
+    * Make the execution of \p inst dependent on the evaluation of a possibly
+    * inverted predicate.
+    */
+   inline svec4_inst *
+   exec_predicate_inv(brw_predicate pred, bool inverse,
+                      svec4_inst *inst)
+   {
+      for (unsigned i = 0; i < ARRAY_SIZE(inst->v); ++i) {
+         if (inst->v[i])
+            exec_predicate_inv(pred, inverse, inst->v[i]);
+      }
+
+      return inst;
+   }
+
+   /**
+    * Make the execution of \p inst dependent on the evaluation of a
+    * predicate.
+    */
+   inline svec4_inst *
+   exec_predicate(enum brw_predicate pred, svec4_inst *inst)
+   {
+      return exec_predicate_inv(pred, false, inst);
+   }
 }
 
 #endif
diff --git a/src/mesa/drivers/dri/i965/brw_ir_vec4.h b/src/mesa/drivers/dri/i965/brw_ir_vec4.h
index 1ad57d9..325e661 100644
--- a/src/mesa/drivers/dri/i965/brw_ir_vec4.h
+++ b/src/mesa/drivers/dri/i965/brw_ir_vec4.h
@@ -330,6 +330,28 @@ exec_all(vec4_instruction *inst)
    inst->force_writemask_all = true;
    return inst;
 }
+
+/**
+ * Make the execution of \p inst dependent on the evaluation of a possibly
+ * inverted predicate.
+ */
+inline vec4_instruction *
+exec_predicate_inv(enum brw_predicate pred, bool inverse,
+                   vec4_instruction *inst)
+{
+   inst->predicate = pred;
+   inst->predicate_inverse = inverse;
+   return inst;
+}
+
+/**
+ * Make the execution of \p inst dependent on the evaluation of a predicate.
+ */
+inline vec4_instruction *
+exec_predicate(enum brw_predicate pred, vec4_instruction *inst)
+{
+   return exec_predicate_inv(pred, false, inst);
+}
 } /* namespace brw */
 
 #endif
-- 
2.3.5