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[committed] scheduling tuning in rs6000 port
- From: "Dorit Naishlos" <DORIT at il dot ibm dot com>
- To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Cc: David Edelsohn <dje at watson dot ibm dot com>
- Date: Mon, 20 Oct 2003 17:55:36 +0200
- Subject: [committed] scheduling tuning in rs6000 port
* config/rs6000/rs6000.h: (rs6000_sched_insert_nops):
support new flag -minsert-sched-nops.
(DEFAULT_SCHED_FINISH_NOP_INSERTION_SCHEME): Define.
* config/rs6000/rs6000.c: (rs6000_sched_insert_nops):
support new flag -minsert-sched-nops.
(is_cracked_insn, is_microcoded_insn): New functions.
(rs6000_sched_finish): New function.
(rs6000_issue_rate): Return 5 for power4.
(get_next_active_insn, insn_terminates_group_p): New
functions.
(is_costly_group, force_new_group): New functions.
(redefine_groups, pad_groups): New functions.
(rs6000_variable_issue): Use new functions.
* doc/invoke.texi (-minsert-sched-nops): Document new option.
Committed, following David Edelsohn's approval
(http://gcc.gnu.org/ml/gcc-patches/2003-10/msg01703.html).
dorit.