diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_cfg.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_cfg.h b/src/mesa/drivers/dri/i965/brw_cfg.h index c06ed61a79f..388d29e8723 100644 --- a/src/mesa/drivers/dri/i965/brw_cfg.h +++ b/src/mesa/drivers/dri/i965/brw_cfg.h @@ -71,6 +71,12 @@ struct bblock_t { const bblock_t *next() const; bblock_t *prev(); const bblock_t *prev() const; + + bool starts_with_control_flow() const; + bool ends_with_control_flow() const; + + backend_instruction *first_non_control_flow_inst(); + backend_instruction *last_non_control_flow_inst(); #endif struct exec_node link; @@ -141,6 +147,50 @@ bblock_prev_const(const struct bblock_t *block) return (const struct bblock_t *)block->link.prev; } +static inline bool +bblock_starts_with_control_flow(const struct bblock_t *block) +{ + enum opcode op = bblock_start_const(block)->opcode; + return op == BRW_OPCODE_DO || op == BRW_OPCODE_ENDIF; +} + +static inline bool +bblock_ends_with_control_flow(const struct bblock_t *block) +{ + enum opcode op = bblock_end_const(block)->opcode; + return op == BRW_OPCODE_IF || + op == BRW_OPCODE_ELSE || + op == BRW_OPCODE_WHILE || + op == BRW_OPCODE_BREAK || + op == BRW_OPCODE_CONTINUE; +} + +static inline struct backend_instruction * +bblock_first_non_control_flow_inst(struct bblock_t *block) +{ + struct backend_instruction *inst = bblock_start(block); + if (bblock_starts_with_control_flow(block)) +#ifdef __cplusplus + inst = (struct backend_instruction *)inst->next; +#else + inst = (struct backend_instruction *)inst->link.next; +#endif + return inst; +} + +static inline struct backend_instruction * +bblock_last_non_control_flow_inst(struct bblock_t *block) +{ + struct backend_instruction *inst = bblock_end(block); + if (bblock_ends_with_control_flow(block)) +#ifdef __cplusplus + inst = (struct backend_instruction *)inst->prev; +#else + inst = (struct backend_instruction *)inst->link.prev; +#endif + return inst; +} + #ifdef __cplusplus inline backend_instruction * bblock_t::start() @@ -189,6 +239,30 @@ bblock_t::prev() const { return bblock_prev_const(this); } + +inline bool +bblock_t::starts_with_control_flow() const +{ + return bblock_starts_with_control_flow(this); +} + +inline bool +bblock_t::ends_with_control_flow() const +{ + return bblock_ends_with_control_flow(this); +} + +inline backend_instruction * +bblock_t::first_non_control_flow_inst() +{ + return bblock_first_non_control_flow_inst(this); +} + +inline backend_instruction * +bblock_t::last_non_control_flow_inst() +{ + return bblock_last_non_control_flow_inst(this); +} #endif struct cfg_t { |