ggml : add ggml_op_is_empty

ggml/include/ggml.h

@@ -702,9 +702,10 @@ extern "C" {
     GGML_API double ggml_type_sizef(enum ggml_type type), // ggml_type_size()/ggml_blck_size() as float
     "use ggml_row_size() instead");
 
-    GGML_API const char * ggml_type_name(enum ggml_type type);
-    GGML_API const char * ggml_op_name  (enum ggml_op   op);
-    GGML_API const char * ggml_op_symbol(enum ggml_op   op);
+    GGML_API const char * ggml_type_name  (enum ggml_type type);
+    GGML_API const char * ggml_op_name    (enum ggml_op   op);
+    GGML_API const char * ggml_op_symbol  (enum ggml_op   op);
+    GGML_API bool         ggml_op_is_empty(enum ggml_op   op);
 
     GGML_API const char * ggml_unary_op_name(enum ggml_unary_op op);
     GGML_API const char * ggml_glu_op_name(enum ggml_glu_op op);

ggml/src/ggml-metal/ggml-metal-common.cpp

@@ -184,20 +184,6 @@ bool ggml_mem_ranges_check(ggml_mem_ranges_t mrs, const ggml_tensor * tensor) {
     return ggml_mem_ranges_check_dst(mrs, tensor);
 }
 
-// TODO: move to ggml.h?
-static bool is_empty(ggml_op op) {
-    switch (op) {
-        case GGML_OP_NONE:
-        case GGML_OP_RESHAPE:
-        case GGML_OP_TRANSPOSE:
-        case GGML_OP_VIEW:
-        case GGML_OP_PERMUTE:
-            return true;
-        default:
-            return false;
-    }
-}
-
 struct node_info {
     ggml_tensor * node;
 
@@ -212,7 +198,7 @@ struct node_info {
     }
 
     bool is_empty() const {
-        return ::is_empty(node->op);
+        return ggml_op_is_empty(node->op);
     }
 
     void add_fused(ggml_tensor * t) {
@@ -289,7 +275,7 @@ static std::vector<int> ggml_metal_graph_optimize_reorder(const std::vector<node
             case GGML_OP_GET_ROWS:
                 return true;
             default:
-                return is_empty(op);
+                return ggml_op_is_empty(op);
         }
     };
 

ggml/src/ggml.c

@@ -1258,6 +1258,19 @@ const char * ggml_op_symbol(enum ggml_op op) {
     return GGML_OP_SYMBOL[op];
 }
 
+bool ggml_op_is_empty(enum ggml_op op) {
+    switch (op) {
+        case GGML_OP_NONE:
+        case GGML_OP_RESHAPE:
+        case GGML_OP_TRANSPOSE:
+        case GGML_OP_VIEW:
+        case GGML_OP_PERMUTE:
+            return true;
+        default:
+            return false;
+    }
+}
+
 const char * ggml_unary_op_name(enum ggml_unary_op op) {
     return GGML_UNARY_OP_NAME[op];
 }