X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbenode_t.h;h=f550185a2952755f1a52a9ad8aec5add9f925303;hb=48f0393daa5d5a14ed7e3e32ee2b090759c9371e;hp=721fe8bd05382bf7673a6d2d47ea113c726515f0;hpb=b93a1268ec711793d3313f5aab10d30dcc001a32;p=libfirm diff --git a/ir/be/benode_t.h b/ir/be/benode_t.h index 721fe8bd0..f550185a2 100644 --- a/ir/be/benode_t.h +++ b/ir/be/benode_t.h @@ -14,6 +14,8 @@ #include "firm_config.h" +#include + #include "irmode.h" #include "irnode.h" #include "entity_t.h" @@ -37,6 +39,7 @@ extern ir_op *op_be_Call; extern ir_op *op_be_Return; extern ir_op *op_be_IncSP; extern ir_op *op_be_AddSP; +extern ir_op *op_be_SubSP; extern ir_op *op_be_SetSP; extern ir_op *op_be_RegParams; extern ir_op *op_be_StackParam; @@ -57,6 +60,7 @@ typedef enum { beo_Call, beo_Return, beo_AddSP, + beo_SubSP, beo_IncSP, beo_SetSP, beo_RegParams, @@ -68,12 +72,6 @@ typedef enum { beo_Last } be_opcode_t; -/** Expresses the direction of the stack pointer increment of IncSP nodes. */ -typedef enum { - be_stack_dir_expand = 0, - be_stack_dir_shrink = 1 -} be_stack_dir_t; - /** Not used yet. */ typedef enum { be_frame_flag_spill = 1, @@ -85,7 +83,8 @@ typedef enum { * A "symbolic constant" for the size of the stack frame to use with IncSP nodes. * It gets back-patched to the real size as soon it is known. */ -#define BE_STACK_FRAME_SIZE ((unsigned) -1) +#define BE_STACK_FRAME_SIZE_EXPAND INT_MAX +#define BE_STACK_FRAME_SIZE_SHRINK INT_MIN /** * Determines if irn is a be_node. @@ -143,6 +142,9 @@ void be_set_Copy_op(ir_node *cpy, ir_node *op); * Make a new Perm node. */ ir_node *be_new_Perm(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int arity, ir_node *in[]); +/** + * Create a new MemPerm node. + */ ir_node *be_new_MemPerm(const arch_env_t *arch_env, ir_graph *irg, ir_node *bl, int n, ir_node *in[]); ir_node *be_new_Keep(const arch_register_class_t *cls, ir_graph *irg, ir_node *bl, int arity, ir_node *in[]); @@ -181,6 +183,35 @@ enum { */ ir_node *be_new_AddSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *sz); +/** + * Position numbers for the be_SubSP inputs + */ +enum { + be_pos_SubSP_old_sp = 0, + be_pos_SubSP_size = 1, + be_pos_SubSP_last = 2 +}; + +enum { + pn_be_SubSP_res = 0, + pn_be_SubSP_M = 1, + pn_be_SubSP_last = 2 +}; + +/** + * Make a new SubSP node. + * A SubSP node expresses a decrease of the stack pointer in the direction the stack + * grows. In contrast to IncSP, the amount of bytes the stack pointer is grown, is not + * given by a constant but an ordinary Firm node. + * @param sp The stack pointer register. + * @param irg The graph. + * @param bl The block. + * @param old_sp The node representing the old stack pointer value. + * @param sz The node expressing the size by which the stack pointer shall be grown. + * @return A new DecSP node. + */ +ir_node *be_new_SubSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *sz); + ir_node *be_new_SetSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *operand, ir_node *mem); /** @@ -189,13 +220,13 @@ ir_node *be_new_SetSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_ * @param irg The graph to insert the node to. * @param bl The block to insert the node into. * @param old_sp The node defining the former stack pointer. - * @param amount The mount of bytes the stack pointer shall be increased/decreased. + * @param amount The mount of bytes the stack shall be expanded/shrinked (see set_IncSP_offset) * @param dir The direction in which the stack pointer shall be modified: * Along the stack's growing direction or against. * @return A new stack pointer increment/decrement node. * @note This node sets a register constraint to the @p sp register on its output. */ -ir_node *be_new_IncSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *mem, unsigned amount, be_stack_dir_t dir); +ir_node *be_new_IncSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, int offset); /** Returns the previous node that computes the stack pointer. */ ir_node *be_get_IncSP_pred(ir_node *incsp); @@ -203,20 +234,16 @@ ir_node *be_get_IncSP_pred(ir_node *incsp); /** Sets the previous node that computes the stack pointer. */ void be_set_IncSP_pred(ir_node *incsp, ir_node *pred); -/** Returns the memory input of the IncSP. */ -ir_node *be_get_IncSP_mem(ir_node *irn); - -/** Sets a new offset to a IncSP node. */ -void be_set_IncSP_offset(ir_node *irn, unsigned offset); +/** + * Sets a new offset to a IncSP node. + * A positive offset means expanding the stack, a negative offset shrinking + * an offset is == BE_STACK_FRAME_SIZE will be replaced by the real size of the + * stackframe in the fix_stack_offsets phase. + */ +void be_set_IncSP_offset(ir_node *irn, int offset); /** Gets the offset from a IncSP node. */ -unsigned be_get_IncSP_offset(const ir_node *irn); - -/** Sets a new direction to a IncSP node. */ -void be_set_IncSP_direction(ir_node *irn, be_stack_dir_t dir); - -/** Gets the direction from a IncSP node. */ -be_stack_dir_t be_get_IncSP_direction(const ir_node *irn); +int be_get_IncSP_offset(const ir_node *irn); /** Gets the call entity or NULL if this is no static call. */ entity *be_Call_get_entity(const ir_node *call); @@ -338,25 +365,26 @@ int be_is_FrameStore(const ir_node *irn); int be_is_Barrier(const ir_node *irn); /** - * Get the entity on the stack frame the given node uses. - * @param irn The node. - * @return The entity on the stack frame used by the node or NULL, - * if the node does not access the stack frame or is no back-end node. + * Try to avoid this function and better call arch_get_frame_entity! * + * Returns the frame entity used by the be node */ -entity *be_get_frame_entity(const ir_node *irn); - -void be_set_frame_entity(const ir_node *irn, entity* ent); +entity* be_get_frame_entity(const ir_node *irn); ir_node* be_get_Reload_mem(const ir_node *irn); ir_node* be_get_Reload_frame(const ir_node* irn); +ir_node* be_get_Spill_val(const ir_node *irn); +ir_node* be_get_Spill_frame(const ir_node* irn); + void be_set_MemPerm_in_entity(const ir_node *irn, int n, entity* ent); entity *be_get_MemPerm_in_entity(const ir_node *irn, int n); void be_set_MemPerm_out_entity(const ir_node *irn, int n, entity* ent); entity *be_get_MemPerm_out_entity(const ir_node *irn, int n); +int be_get_MemPerm_entity_arity(const ir_node *irn); + /** * Impose a register constraint on a backend node. * @param irn The node.