rtx_def Struct Reference

#include <rtl.h>

Inheritance diagram for rtx_def:

Collaboration diagram for rtx_def:

Data Structures
union	u

Data Fields
enum machine_mode	mode: MACHINE_MODE_BITSIZE
enum rtx_code	code: RTX_CODE_BITSIZE
unsigned int	jump: 1
unsigned int	call: 1
unsigned int	unchanging: 1
unsigned int	volatil: 1
unsigned int	in_struct: 1
unsigned int	used: 1
unsigned	frame_related: 1
unsigned	return_val: 1
union {
unsigned int   original_regno
int   insn_uid
unsigned int   symbol_ref_flags
enum var_init_status   var_location_status
unsigned int   num_elem
struct {
unsigned int   npatterns: 16
unsigned int   nelts_per_pattern: 8
unsigned int   unused: 8
}   const_vector
}	u2
union rtx_def::u	u

Detailed Description

RTL expression ("rtx").   

The GTY "desc" and "tag" options below are a kludge: we need a desc
field for gengtype to recognize that inheritance is occurring,
so that all subclasses are redirected to the traversal hook for the
base class.
However, all of the fields are in the base class, and special-casing
is at work.  Hence we use desc and tag of 0, generating a switch
statement of the form:
  switch (0)
    {
    case 0: // all the work happens here
   }
in order to work with the existing special-casing in gengtype.   

Field Documentation

call

unsigned int rtx_def::call

code

enum rtx_code rtx_def::code

Referenced by reload_combine_note_use().

[struct]

struct { ... } rtx_def::const_vector

frame_related

unsigned rtx_def::frame_related

in_struct

unsigned int rtx_def::in_struct

insn_uid

int rtx_def::insn_uid

jump

unsigned int rtx_def::jump

mode

enum machine_mode rtx_def::mode

Referenced by dup_replacements(), emit_output_reload_insns(), find_replacement(), push_reload(), push_replacement(), and subst_reloads().

nelts_per_pattern

unsigned int rtx_def::nelts_per_pattern

npatterns

unsigned int rtx_def::npatterns

num_elem

unsigned int rtx_def::num_elem

original_regno

unsigned int rtx_def::original_regno

return_val

unsigned rtx_def::return_val

symbol_ref_flags

unsigned int rtx_def::symbol_ref_flags

u

union rtx_def::u rtx_def::u

Referenced by const_double_from_real_value(), and const_fixed_from_fixed_value().

[union]

union { ... } rtx_def::u2

unchanging

unsigned int rtx_def::unchanging

unused

unsigned int rtx_def::unused

used

unsigned int rtx_def::used

Referenced by cleanup_dead_labels(), dead_debug_global_init(), and main_block_label().

var_location_status

enum var_init_status rtx_def::var_location_status

volatil

unsigned int rtx_def::volatil

Referenced by rtx_insn::deleted(), rtx_insn::set_deleted(), and rtx_insn::set_undeleted().

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The documentation for this struct was generated from the following file:

• rtl.h