* with a Sel node the pointer to a thread local variable.
*
* - args The ir_node that produces the arguments of the method as
- * it's result. This is a Proj node on the fourth output of
+ * its result. This is a Proj node on the fourth output of
* the start node. This output is tagged as pn_Start_T_args.
*
* - proj_args The proj nodes of the args node.
*
- * - bad The Bad node is an auxiliary node. It is needed only once,
- * so there is this globally reachable node.
- *
* - no_mem The NoMem node is an auxiliary node. It is needed only once,
* so there is this globally reachable node.
*
FIRM_API ir_graph *get_current_ir_graph(void);
FIRM_API void set_current_ir_graph(ir_graph *graph);
-#ifdef INTERPROCEDURAL_VIEW
-/** This flag indicate the current view. The behavior of some methods
- * (get_irn_*, set_irn_*) is influenced by this flag. */
-FIRM_API int get_interprocedural_view(void);
-FIRM_API void set_interprocedural_view(int state);
-#endif
-
/**
* Create a new ir graph to build ir for a procedure.
*
* represent a procedure in FIRM.
*
* It allocates an ir_graph and sets the field irg of the entity ent
- * as well as current_ir_graph to point to this graph.
- * Further it allocates the following nodes needed for every
- * procedure:
+ * to point to this graph. Further it allocates the following nodes needed
+ * for every procedure:
*
- * - The start block containing a start node and Proj nodes for it's
+ * - The start block containing a start node and Proj nodes for its
* seven results (X, M, P, P, P, T, P).
* - The end block containing an end node. This block is not matured
* after executing new_ir_graph() as predecessors need to be added to it.
- * (Maturing a block means fixing it's number of predecessors.)
+ * (Maturing a block means fixing its number of predecessors.)
* - The current block, which is empty and also not matured.
*
* Further it enters the global store into the data structure of the start
/** Sets the frame type of an IR graph. */
FIRM_API void set_irg_frame_type(ir_graph *irg, ir_type *ftp);
-/** Returns the value parameter type of an IR graph. */
-FIRM_API ir_type *get_irg_value_param_type(ir_graph *irg);
-
/** Returns the start block of an IR graph. */
FIRM_API ir_node *get_irg_start_block(const ir_graph *irg);
/** Sets the start block of an IR graph. */
/** Sets the End node of an IR graph. */
FIRM_API void set_irg_end(ir_graph *irg, ir_node *node);
-/* The fields end_reg and end_except contain the end nodes of the
- interprocedural view. If the view is not constructed they contain
- the normal end node. */
-FIRM_API ir_node *get_irg_end_reg(const ir_graph *irg);
-FIRM_API void set_irg_end_reg(ir_graph *irg, ir_node *node);
-
-FIRM_API ir_node *get_irg_end_except(const ir_graph *irg);
-FIRM_API void set_irg_end_except(ir_graph *irg, ir_node *node);
-
/** Returns the node that represents the initial control flow of the given
* IR graph. */
FIRM_API ir_node *get_irg_initial_exec(const ir_graph *irg);
/** Sets the node that represents the frame pointer of the given IR graph. */
FIRM_API void set_irg_frame(ir_graph *irg, ir_node *node);
-/** Returns the node that represents the tls pointer of the given IR graph. */
-FIRM_API ir_node *get_irg_tls(const ir_graph *irg);
-/** Sets the node that represents the tls pointer of the given IR graph. */
-FIRM_API void set_irg_tls(ir_graph *irg, ir_node *node);
-
/** Returns the node that represents the initial memory of the given IR graph. */
FIRM_API ir_node *get_irg_initial_mem(const ir_graph *irg);
/** Sets the node that represents the initial memory of the given IR graph. */
/** Sets the node that represents the argument pointer of the given IR graph. */
FIRM_API void set_irg_args(ir_graph *irg, ir_node *node);
-/** Returns the current block of an IR graph. */
-FIRM_API ir_node *get_irg_current_block(const ir_graph *irg);
-/** Sets the current block of an IR graph. */
-FIRM_API void set_irg_current_block(ir_graph *irg, ir_node *node);
-
-/** Returns the Bad node of the given IR graph. Use new_Bad() instead!! */
-FIRM_API ir_node *get_irg_bad(const ir_graph *irg);
-FIRM_API void set_irg_bad(ir_graph *irg, ir_node *node);
-
-/** Returns the NoMem node of the given IR graph. Use new_NoMem() instead!! */
+/** Returns the NoMem node of the given IR graph. */
FIRM_API ir_node *get_irg_no_mem(const ir_graph *irg);
FIRM_API void set_irg_no_mem(ir_graph *irg, ir_node *node);
* smaller than get_irp_last_idx()
* Note: you cannot use this number for get_irp_irg()
*/
-FIRM_API int get_irg_idx(const ir_graph *irg);
+FIRM_API size_t get_irg_idx(const ir_graph *irg);
/**
* Get the node for an index.
* index.
* @note The node you got might be dead.
*/
-FIRM_API ir_node *get_idx_irn(ir_graph *irg, unsigned idx);
+FIRM_API ir_node *get_idx_irn(const ir_graph *irg, unsigned idx);
/******************************************************************************/
/** Sets the phase state of an IR graph. */
FIRM_API void set_irg_phase_state(ir_graph *irg, irg_phase_state state);
-/** Sets the phase of the given IR graph to low. */
-#define set_irg_phase_low(irg) set_irg_phase_state(irg, phase_low)
-
/** state: op_pin_state_pinned
The graph is "op_pin_state_pinned" if all nodes are associated with a basic block.
It is in state "op_pin_state_floats" if nodes are in arbitrary blocks. In state
outs_inconsistent /**< Outs have been computed, memory is still allocated,
but the graph has been changed since. */
} irg_outs_state;
-FIRM_API irg_outs_state get_irg_outs_state(const ir_graph *irg);
-FIRM_API void set_irg_outs_inconsistent(ir_graph *irg);
/** state: extended basic block state. */
typedef enum {
- extblk_none = 0, /**< No extended basic block information is constructed. Default. */
- extblk_valid = 1, /**< Extended basic block information is valid. */
- extblk_invalid = 2 /**< Extended basic block information is constructed but invalid. */
-} irg_extblk_state;
-FIRM_API irg_extblk_state get_irg_extblk_state(const ir_graph *irg);
+ ir_extblk_info_none = 0, /**< No extended basic block information is constructed. Default. */
+ ir_extblk_info_valid = 1, /**< Extended basic block information is valid. */
+ ir_extblk_info_invalid = 2 /**< Extended basic block information is constructed but invalid. */
+} irg_extblk_info_state;
+FIRM_API irg_extblk_info_state get_irg_extblk_state(const ir_graph *irg);
FIRM_API void set_irg_extblk_inconsistent(ir_graph *irg);
-/** state: dom_state
- * Signals the state of the dominator / post dominator information.
- */
-typedef enum {
- dom_none, /**< dominator are not computed, no memory is allocated */
- dom_consistent, /**< dominator information is computed and correct */
- dom_inconsistent /**< dominator information is computed but the graph has been changed since */
-} irg_dom_state;
-
-/** returns the dominator state of an IR graph. */
-FIRM_API irg_dom_state get_irg_dom_state(const ir_graph *irg);
-
-/** returns the post dominator state of an IR graph. */
-FIRM_API irg_dom_state get_irg_postdom_state(const ir_graph *irg);
-
-/** sets the dominator and post dominator state of an IR graph to inconsistent. */
-FIRM_API void set_irg_doms_inconsistent(ir_graph *irg);
-
/** state: loopinfo_state
* Loop information describes the loops within the control and
* data flow of the procedure.
* Returns the mask of the additional graph properties.
* The properties are automatically inherited from the method type
* if they were not set using set_irg_additional_properties() or
- * set_irg_additional_property().
+ * set_irg_additional_properties().
*
- * @return a bitset of mtp_additional_property values
+ * @return a bitset of mtp_additional_properties values
*/
-FIRM_API unsigned get_irg_additional_properties(const ir_graph *irg);
+FIRM_API mtp_additional_properties get_irg_additional_properties(const ir_graph *irg);
/** Sets the mask of the additional graph properties. */
FIRM_API void set_irg_additional_properties(ir_graph *irg,
- unsigned property_mask);
+ mtp_additional_properties property_mask);
/** Sets one additional graph property. */
-FIRM_API void set_irg_additional_property(ir_graph *irg,
- mtp_additional_property flag);
+FIRM_API void add_irg_additional_properties(ir_graph *irg,
+ mtp_additional_properties flag);
/** A void * field to link arbitrary information to the node. */
FIRM_API void set_irg_link(ir_graph *irg, void *thing);
* block_visited flags. If NDEBUG is not defined, then the compiler will abort
* if 2 parties try to use the flags.
*/
-enum ir_resources_enum_t {
+typedef enum ir_resources_t {
/* local (irg) resources */
+ IR_RESOURCE_NONE = 0,
IR_RESOURCE_BLOCK_VISITED = 1 << 0, /**< Block visited flags are used. */
IR_RESOURCE_BLOCK_MARK = 1 << 1, /**< Block mark bits are used. */
IR_RESOURCE_IRN_VISITED = 1 << 2, /**< IR-node visited flags are used. */
IR_RESOURCE_IRN_LINK = 1 << 3, /**< IR-node link fields are used. */
IR_RESOURCE_LOOP_LINK = 1 << 4, /**< IR-loop link fields are used. */
- IR_RESOURCE_PHI_LIST = 1 << 5, /**< Block Phi lists are used. */
- IR_RESOURCE_IRG_LINK = 1 << 6, /**< IR-graph link fields used. */
-
- /* global (irp) resources */
- IR_RESOURCE_ENTITY_LINK = 1 << 8, /**< IR-entity link fields are used. */
- IR_RESOURCE_TYPE_VISITED = 1 << 9, /**< type visited flags */
-
- /* masks */
- IR_RESOURCE_LOCAL_MASK = 0x00FF, /**< Mask for all local resources. */
- IR_RESOURCE_GLOBAL_MASK = 0xFF00 /**< Mask for all global resources. */
-};
-typedef unsigned ir_resources_t;
+ IR_RESOURCE_PHI_LIST = 1 << 5 /**< Block Phi lists are used. */
+} ir_resources_t;
+ENUM_BITSET(ir_resources_t)
#ifndef NDEBUG
FIRM_API void ir_reserve_resources(ir_graph *irg, ir_resources_t resources);
#endif
/**
- * Graph State
+ * graph state. This is used for 2 things:
+ * - stating properties about a graph
+ * - disallow certain transformations for the graph (typically highlevel
+ * constructs are disallowed after lowering them)
*/
typedef enum {
- IR_GRAPH_STATE_KEEP_MUX = 1 << 0, /**< should perform no further optimisations on Mux nodes */
- IR_GRAPH_STATE_ARCH_DEP = 1 << 1, /**< should not construct more nodes which irarch potentially breaks down */
+ /**
+ * Should not construct more nodes which irarch potentially breaks down
+ */
+ IR_GRAPH_STATE_ARCH_DEP = 1U << 0,
+ /**
+ * mode_b nodes have been lowered so you should not create any new nodes
+ * with mode_b (except for Cmp)
+ */
+ IR_GRAPH_STATE_MODEB_LOWERED = 1U << 1,
+ /**
+ * There are normalisations where there is no "best" representative.
+ * In this case we first normalise into 1 direction (!NORMALISATION2) and
+ * later in the other (NORMALISATION2).
+ */
+ IR_GRAPH_STATE_NORMALISATION2 = 1U << 2,
+ /**
+ * Define the semantic of Load(Sel(x)), if x has a bit offset (Bitfields!).
+ * Normally, the frontend is responsible for bitfield masking operations.
+ * Set IMPLICIT_BITFIELD_MASKING, if the lowering phase must insert masking
+ * operations.
+ */
+ IR_GRAPH_STATE_IMPLICIT_BITFIELD_MASKING = 1U << 3,
+ /**
+ * Allow localopts to remove edges to unreachable code.
+ * Warning: It is only safe to enable this when you are sure that you
+ * apply all localopts to the fixpunkt. (=in optimize_graph_df)
+ */
+ IR_GRAPH_STATE_OPTIMIZE_UNREACHABLE_CODE = 1U << 4,
+ /** graph contains no critical edges */
+ IR_GRAPH_STATE_NO_CRITICAL_EDGES = 1U << 5,
+ /** graph contains no Bad nodes */
+ IR_GRAPH_STATE_NO_BADS = 1U << 6,
+ /**
+ * there exists no (obviously) unreachable code in the graph.
+ * Unreachable in this context is code that you can't reach by following
+ * execution flow from the start block.
+ */
+ IR_GRAPH_STATE_NO_UNREACHABLE_CODE = 1U << 7,
+ /** graph contains at most one return */
+ IR_GRAPH_STATE_ONE_RETURN = 1U << 8,
+ /** dominance information about the graph is valid */
+ IR_GRAPH_STATE_CONSISTENT_DOMINANCE = 1U << 9,
+ /** postdominance information about the graph is valid */
+ IR_GRAPH_STATE_CONSISTENT_POSTDOMINANCE = 1U << 10,
+ /**
+ * out edges (=iredges) are enable and there is no dead code that can be
+ * reached by following them
+ */
+ IR_GRAPH_STATE_CONSISTENT_OUT_EDGES = 1U << 11,
+ /** outs (irouts) are computed and up to date */
+ IR_GRAPH_STATE_CONSISTENT_OUTS = 1U << 12,
+ /** loopinfo is computed and up to date */
+ IR_GRAPH_STATE_CONSISTENT_LOOPINFO = 1U << 13,
+ /** entity usage information is computed and up to date */
+ IR_GRAPH_STATE_CONSISTENT_ENTITY_USAGE = 1U << 14,
+ /** extended basic blocks have been formed and are up to date */
+ IR_GRAPH_STATE_VALID_EXTENDED_BLOCKS = 1U << 15,
} ir_graph_state_t;
+ENUM_BITSET(ir_graph_state_t)
/** set some state flags on the graph (this does not clear the other flags) */
FIRM_API void set_irg_state(ir_graph *irg, ir_graph_state_t state);
/** clear some state flags of the graph */
FIRM_API void clear_irg_state(ir_graph *irg, ir_graph_state_t state);
-/** query wether a set of graph state flags are activated */
+/** query whether a set of graph state flags are activated */
FIRM_API int is_irg_state(const ir_graph *irg, ir_graph_state_t state);
-/** Normalization: Move Proj nodes into the same block as its predecessors */
-FIRM_API void normalize_proj_nodes(ir_graph *irg);
-
/** Set a description for local value n. */
FIRM_API void set_irg_loc_description(ir_graph *irg, int n, void *description);
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