#include "firm_types.h"
+#include "pset.h"
+#include "pmap.h"
+
#include "be.h"
#include "bearch.h"
#include "beabi_t.h"
-typedef struct {
- unsigned left_to_right :1; /**< Arguments are from left to right. */
- unsigned store_args_sequential :1; /**< Use sequential stores for arguments. */
- unsigned try_omit_fp :1; /**< Try to omit the frame pointer. */
- unsigned fp_free :1; /**< The function can use any register as frame pointer. */
- unsigned call_has_imm :1; /**< A call can take the callee's address as an immediate. */
-} be_abi_call_flags_bits_t;
+/** Flag: if set, try to omit the frame pointer if alled by the backend */
+extern int be_omit_fp;
+
+struct _be_abi_call_flags_bits_t {
+ unsigned left_to_right : 1; /**< Arguments are from left to right. */
+ unsigned store_args_sequential : 1; /**< Use sequential stores for arguments. */
+ unsigned try_omit_fp : 1; /**< Try to omit the frame pointer. */
+ unsigned fp_free : 1; /**< The function can use any register as frame pointer. */
+ unsigned call_has_imm : 1; /**< A call can take the callee's address as an immediate. */
+ unsigned irg_is_leaf : 1; /**< 1, if the IRG is a leaf function. */
+ unsigned frame_is_setup_on_call : 1; /**< Set to one, if there is already enough room on the stack for call args. */
+};
-typedef union {
+union _be_abi_call_flags_t {
be_abi_call_flags_bits_t bits;
unsigned val;
-} be_abi_call_flags_t;
+};
+
+struct _be_abi_callbacks_t {
+ /**
+ * Initialize the callback object.
+ * @param call The call object.
+ * @param aenv The architecture environment.
+ * @param irg The graph with the method.
+ * @return Some pointer. This pointer is passed to all other callback functions as self object.
+ */
+ void *(*init)(const be_abi_call_t *call, const arch_env_t *aenv, ir_graph *irg);
+
+ /**
+ * Destroy the callback object.
+ * @param self The callback object.
+ */
+ void (*done)(void *self);
+
+ /**
+ * Get the between type for that call.
+ * @param self The callback object.
+ * @return The between type of for that call.
+ */
+ ir_type *(*get_between_type)(void *self);
-void be_abi_call_set_flags(be_abi_call_t *call, be_abi_call_flags_t flags, ir_type *add_frame);
-void be_abi_call_param_stack(be_abi_call_t *call, int pos);
+ /**
+ * Put all registers which are saved by the prologue/epilogue in a set.
+ * @param self The callback object.
+ * @param regs A set.
+ */
+ void (*regs_saved_by_me)(void *self, pset *regs);
+
+ /**
+ * Generate the prologue.
+ * @param self The callback object.
+ * @param mem A pointer to the mem node. Update this if you define new memory.
+ * @param reg_map A mapping mapping all callee_save/ignore/parameter registers to their defining nodes.
+ * @return The register which shall be used as a stack frame base.
+ *
+ * All nodes which define registers in @p reg_map must keep @p reg_map current.
+ */
+ const arch_register_t *(*prologue)(void *self, ir_node **mem, pmap *reg_map);
+
+ /**
+ * Generate the epilogue.
+ * @param self The callback object.
+ * @param mem Memory one can attach to.
+ * @param reg_map A mapping mapping all callee_save/ignore/return registers to their defining nodes.
+ *
+ * All nodes which define registers in @p reg_map must keep @p reg_map current.
+ * Also, the @p mem variable must be updated, if memory producing nodes are inserted.
+ */
+ void (*epilogue)(void *self, ir_node *bl, ir_node **mem, pmap *reg_map);
+};
+
+/**
+ * Set the flags for a call.
+ * @param call The call.
+ * @param flags Some flags to be set.
+ * @param cb The call callbacks for that call.
+ * @note The ABI phase might change the flags due to analysis.
+ */
+void be_abi_call_set_flags(be_abi_call_t *call, be_abi_call_flags_t flags, const be_abi_callbacks_t *cb);
+
+
+void be_abi_call_param_stack(be_abi_call_t *call, int pos, unsigned alignment, unsigned space_before, unsigned space_after);
void be_abi_call_param_reg(be_abi_call_t *call, int pos, const arch_register_t *reg);
void be_abi_call_res_reg(be_abi_call_t *call, int pos, const arch_register_t *reg);
+/**
+ * Get the flags of a ABI call object.
+ * Note that the flags must not be the same as set by be_abi_call_set_flags(). Analysis may have
+ * altered several flags, so getting them from the call object is always a good idea.
+ * @param call The call object.
+ * @return The flags.
+ */
+be_abi_call_flags_t be_abi_call_get_flags(const be_abi_call_t *call);
+
+/**
+ * Get the method type of an ABI call object.
+ * @param call The call object.
+ * @return The method type for that call object.
+ */
+ir_type *be_abi_call_get_method_type(const be_abi_call_t *call);
+
be_abi_irg_t *be_abi_introduce(be_irg_t *bi);
void be_abi_fix_stack_bias(be_abi_irg_t *env);
void be_abi_fix_stack_nodes(be_abi_irg_t *env);
ir_node *be_abi_get_callee_save_irn(be_abi_irg_t *abi, const arch_register_t *reg);
+#define be_abi_reg_map_get(map, reg) pmap_get((map), (void *) (reg))
+#define be_abi_reg_map_set(map, reg, irn) pmap_insert((map), (void *) (reg), (irn))
+
#endif
projects / libfirm / blobdiff