enum vtn_branch_type {
vtn_branch_type_none,
+ vtn_branch_type_if_merge,
vtn_branch_type_switch_break,
vtn_branch_type_switch_fallthrough,
vtn_branch_type_loop_break,
vtn_branch_type_loop_continue,
+ vtn_branch_type_loop_back_edge,
vtn_branch_type_discard,
vtn_branch_type_return,
};
vtn_cf_node_type_block,
vtn_cf_node_type_if,
vtn_cf_node_type_loop,
+ vtn_cf_node_type_case,
vtn_cf_node_type_switch,
+ vtn_cf_node_type_function,
};
struct vtn_cf_node {
struct list_head link;
+ struct vtn_cf_node *parent;
enum vtn_cf_node_type type;
};
*/
struct list_head cont_body;
+ struct vtn_block *header_block;
+ struct vtn_block *cont_block;
+ struct vtn_block *break_block;
+
SpvLoopControlMask control;
};
enum vtn_branch_type else_type;
struct list_head else_body;
+ struct vtn_block *merge_block;
+
SpvSelectionControlMask control;
};
struct vtn_case {
- struct list_head link;
+ struct vtn_cf_node node;
+ enum vtn_branch_type type;
struct list_head body;
- /* The block that starts this case */
- struct vtn_block *start_block;
-
/* The fallthrough case, if any */
struct vtn_case *fallthrough;
uint32_t selector;
struct list_head cases;
+
+ struct vtn_block *break_block;
};
struct vtn_block {
enum vtn_branch_type branch_type;
+ /* The CF node for which this is a merge target
+ *
+ * The SPIR-V spec requires that any given block can be the merge target
+ * for at most one merge instruction. If this block is a merge target,
+ * this points back to the block containing that merge instruction.
+ */
+ struct vtn_cf_node *merge_cf_node;
+
/** Points to the loop that this block starts (if it starts a loop) */
struct vtn_loop *loop;
};
struct vtn_function {
- struct exec_node node;
+ struct vtn_cf_node node;
struct vtn_type *type;
SpvFunctionControlMask control;
};
+#define VTN_DECL_CF_NODE_CAST(_type) \
+static inline struct vtn_##_type * \
+vtn_cf_node_as_##_type(struct vtn_cf_node *node) \
+{ \
+ assert(node->type == vtn_cf_node_type_##_type); \
+ return (struct vtn_##_type *)node; \
+}
+
+VTN_DECL_CF_NODE_CAST(block)
+VTN_DECL_CF_NODE_CAST(loop)
+VTN_DECL_CF_NODE_CAST(if)
+VTN_DECL_CF_NODE_CAST(case)
+VTN_DECL_CF_NODE_CAST(switch)
+VTN_DECL_CF_NODE_CAST(function)
+
+#define vtn_foreach_cf_node(node, cf_list) \
+ list_for_each_entry(struct vtn_cf_node, node, cf_list, link)
+
typedef bool (*vtn_instruction_handler)(struct vtn_builder *, SpvOp,
const uint32_t *, unsigned);
bool variable_pointers;
struct vtn_function *func;
- struct exec_list functions;
+ struct list_head functions;
/* Current function parameter index */
unsigned func_param_idx;
struct vtn_value *vtn_push_ssa(struct vtn_builder *b, uint32_t value_id,
struct vtn_type *type, struct vtn_ssa_value *ssa);
+void
+vtn_copy_value(struct vtn_builder *b, uint32_t src_value_id,
+ uint32_t dst_value_id);
+
struct vtn_ssa_value *vtn_create_ssa_value(struct vtn_builder *b,
const struct glsl_type *type);
struct vtn_ssa_value *vtn_ssa_transpose(struct vtn_builder *b,
struct vtn_ssa_value *src);
-nir_ssa_def *vtn_vector_extract(struct vtn_builder *b, nir_ssa_def *src,
- unsigned index);
-nir_ssa_def *vtn_vector_extract_dynamic(struct vtn_builder *b, nir_ssa_def *src,
- nir_ssa_def *index);
-nir_ssa_def *vtn_vector_insert(struct vtn_builder *b, nir_ssa_def *src,
- nir_ssa_def *insert, unsigned index);
-nir_ssa_def *vtn_vector_insert_dynamic(struct vtn_builder *b, nir_ssa_def *src,
- nir_ssa_def *insert, nir_ssa_def *index);
-
nir_deref_instr *vtn_nir_deref(struct vtn_builder *b, uint32_t id);
-struct vtn_pointer *vtn_pointer_for_variable(struct vtn_builder *b,
- struct vtn_variable *var,
- struct vtn_type *ptr_type);
-
nir_deref_instr *vtn_pointer_to_deref(struct vtn_builder *b,
struct vtn_pointer *ptr);
nir_ssa_def *