2 * General reqister mapping stuff.
3 * @author Christian Wuerdig
7 #ifndef _IA32_MAP_REGS_H_
8 #define _IA32_MAP_REGS_H_
13 #include "../bearch.h"
14 #include "ia32_nodes_attr.h"
17 * Convenience macro to check if register <code>out<\code>
18 * and register <code>in<\code> are equal.
20 #define REGS_ARE_EQUAL(out, in) \
21 ((arch_register_get_class(out) == arch_register_get_class(in)) && \
22 (arch_register_get_index(out) == arch_register_get_index(in)))
25 * Set compare function
27 int ia32_cmp_irn_reg_assoc(const void *a, const void *b, size_t len);
30 * Assigns a register to a firm node.
32 void ia32_set_firm_reg(ir_node *irn, const arch_register_t *reg, set *reg_set);
35 * Gets the register assigned to a firm node.
37 const arch_register_t *ia32_get_firm_reg(const ir_node *irn, set *reg_set);
40 * Enters for each general purpose register the corresponding 16bit
43 void ia32_build_16bit_reg_map(pmap *reg_map);
46 * Enters for each general purpose register the corresponding 8bit
49 void ia32_build_8bit_reg_map(pmap *reg_map);
52 * Returns the corresponding mapped name for a register.
54 const char *ia32_get_mapped_reg_name(pmap *reg_map, const arch_register_t *reg);
57 * Check all parameters and determine the maximum number of parameters
58 * to pass in gp regs resp. in fp regs.
60 * @param n The number of parameters
61 * @param modes The list of the parameter modes
62 * @param n_int Holds the number of int parameters to be passed in regs after the call
63 * @param n_float Holds the number of float parameters to be passed in regs after the call
64 * @return The number of the last parameter to be passed in register
66 int ia32_get_n_regparam_class(int n, ir_mode **modes, int *n_int, int *n_float);
69 * Returns the register for parameter nr.
71 * @param n The number of parameters
72 * @param modes The list of the parameter modes
73 * @param nr The number of the parameter to return the requirements for
74 * @param cc The calling convention
75 * @return The register
77 const arch_register_t *ia32_get_RegParam_reg(int n, ir_mode **modes, long nr, unsigned cc);
80 * Translates the projnum into a "real" argument position for register
81 * requirements dependent on the predecessor.
83 long ia32_translate_proj_pos(const ir_node *proj);
85 #endif /* _IA32_MAP_REGS_H_ */