mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-03-20 02:40:30 +08:00
c5aa1d125c
* config/s390/s390-protos.h (s390_split_access_reg): Add prototype.
* config/s390/s390.c (s390_split_access_reg): New function.
(regclass_map): Add access registers.
(get_thread_pointer): Use access register instead of UNSPEC_TP.
* config/s390/s390.h (FIRST_PSEUDO_REGISTER): Set to 38.
(ACCESS_REGNO_P, ACCESS_REG_P): New macros.
(TP_REGNUM): New define.
(FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS,
REG_ALLOC_ORDER): Add access registers.
(HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
CANNOT_CHANGE_MODE_CLASS): Support access registers.
(enum reg_class): Add ACCESS_REGS.
(REG_CLASS_NAMES, REG_CLASS_CONTENTS): Likewise.
(REG_CLASS_FROM_LETTER): Add 't' constraint.
(REGISTER_NAMES): Add access registers.
* config/s390/s390.md (UNSPEC_TP): Remove.
("*movdi_64"): Add access register alternatives. Provide splitters
to split DImode access register <-> GPR moves into SImode moves.
("*movsi_zarch", "*movsi_esa"): Add access register alternatives.
("movstrictsi"): Likewise.
("get_tp_64", "get_tp_31"): Reimplement using access registers.
("set_tp_64", "set_tp_31"): Likewise.
("*set_tp"): New insn.
From-SVN: r90036
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the file COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs.html for how to report bugs usefully.