From: Steve Ellcey <sje@cup.hp.com>
To: gcc@gcc.gnu.org
Cc: aldyh@redhat.com, dave@hiauly1.hia.nrc.ca
Subject: Re: Vector modes under hppa64-hpu
Date: Wed, 24 Jul 2002 15:22:00 -0000 [thread overview]
Message-ID: <200207241801.LAA22452@hpsje.cup.hp.com> (raw)
Well, following up to my own mail, I have a couple of questions. If I
am on a system that does not support the VECTOR modes, should I ever see
any rtx with a type of V2SImode? I don't think I should, but I am not
sure. When I run simd-1.c with -O0 on IA64 or PA64 I never see any code
with this mode. When I run with -O1 I do see such code. I believe that
this code is coming from store_constructor in expr.c. With -O1, when
"TREE_CODE (type) == VECTOR_TYPE" I wind up setting need_to_clear to 1
because I am storing into a (64 bit) register, and that in turn winds up
calling emit_move_insn with a mode of V2SImode and I think that is wrong
since my platform does not support V2SImode. With -O0, I do not store
into a register so store_constructor doesn't set need_to_clear and
everything works OK.
Steve Ellcey
sje@cup.hp.com
next reply other threads:[~2002-07-24 18:01 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-24 15:22 Steve Ellcey [this message]
2002-07-24 16:30 ` Aldy Hernandez
-- strict thread matches above, loose matches on Subject: below --
2002-07-25 22:07 Joern Rennecke
2002-07-26 1:56 ` John David Anglin
2002-07-25 20:57 Joern Rennecke
2002-07-25 21:21 ` Aldy Hernandez
2002-07-26 3:20 ` Joern Rennecke
2002-07-27 5:54 ` John David Anglin
2002-07-27 7:35 ` Aldy Hernandez
2002-07-28 9:52 ` Richard Henderson
2002-07-25 15:19 Steve Ellcey
2002-07-25 15:28 ` Aldy Hernandez
2002-07-25 11:40 Steve Ellcey
2002-07-25 14:52 ` Aldy Hernandez
2002-07-25 3:53 Steve Ellcey
2002-07-25 2:02 Steve Ellcey
2002-07-25 2:36 ` Aldy Hernandez
2002-07-25 2:54 ` John David Anglin
2002-07-25 2:56 ` Aldy Hernandez
2002-07-25 11:22 ` John David Anglin
2002-07-25 0:09 Steve Ellcey
2002-07-25 1:01 ` Aldy Hernandez
2002-07-24 17:42 Steve Ellcey
2002-07-24 18:12 ` Aldy Hernandez
2002-07-24 14:11 Steve Ellcey
2002-07-14 23:15 Aldy Hernandez
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