GCC Middle and Back End API Reference
Data Fields
du_head Class Reference

#include <regrename.h>

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Data Fields

class du_head * next_chain
 
struct du_chain * first
 
struct du_chain * last
 
class du_head * tied_chain
 
unsigned regno
 
int nregs
 
unsigned id
 
bitmap_head conflicts
 
HARD_REG_SET hard_conflicts
 
HARD_REG_SET call_clobber_mask
 
unsigned int call_abis: NUM_ABI_IDS
 
unsigned int cannot_rename:1
 
unsigned int renamed:1
 
unsigned int target_data_1
 
unsigned int target_data_2
 

Detailed Description

This file contains definitions for the register renamer.
   Copyright (C) 2011-2024 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.   
We keep linked lists of DU_HEAD structures, each of which describes
a chain of occurrences of a reg.

Field Documentation

◆ call_abis

unsigned int du_head::call_abis

Referenced by build_def_use().

◆ call_clobber_mask

HARD_REG_SET du_head::call_clobber_mask

Referenced by build_def_use().

◆ cannot_rename

unsigned int du_head::cannot_rename

Referenced by record_out_operands().

◆ conflicts

bitmap_head du_head::conflicts

Referenced by mark_conflict().

◆ first

struct du_chain* du_head::first

◆ hard_conflicts

HARD_REG_SET du_head::hard_conflicts

Referenced by build_def_use().

◆ id

unsigned du_head::id

Referenced by regrename_chain_from_id(), and scan_rtx_reg().

◆ last

struct du_chain * du_head::last

◆ next_chain

class du_head* du_head::next_chain

Referenced by build_def_use(), and mark_conflict().

◆ nregs

int du_head::nregs

Referenced by scan_rtx_reg().

◆ regno

unsigned du_head::regno

Referenced by scan_rtx_reg().

◆ renamed

unsigned int du_head::renamed

◆ target_data_1

unsigned int du_head::target_data_1

◆ target_data_2

unsigned int du_head::target_data_2

◆ tied_chain

class du_head* du_head::tied_chain

Referenced by scan_rtx_reg().

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