From: kenner@vlsi1.ultra.nyu.edu (Richard Kenner)
To: matz@suse.de
Cc: gcc@gcc.gnu.org
Subject: Re: What to remove after tree-ssa is merged?
Date: Wed, 04 Feb 2004 16:14:00 -0000 [thread overview]
Message-ID: <10402041617.AA01497@vlsi1.ultra.nyu.edu> (raw)
Probably I'm asking the wrong thing because I'm in turn unsure, where
exactly P_E is used inside types.
Within the expressions for
TYPE_MIN_VALUE
TYPE_MAX_VALUE
DECL_FIELD_OFFSET
TYPE_SIZE
TYPE_SIZE_UNIT
The example you gave (as I understood it) happens to actually use the
P_E only in the context of an expression (a COMPONENT_REF in fact),
also if the P_E expression was only found by looking into the type of
the bounded array.
Looking into a type, yes, but I'm not sure what you mean by "bounded array".
So in that example the P_E is used in expressions, so they could be
lowered to trees not containing P_E (this involves probably making
some element references more explicit).
But you don't have the *object* to make it more explicit when it's inside
the type. That's the whole point: it applies to every *object* of the type.
To that question you then mentioned P_E inside types, but they should only
matter for type comparing or in context of expressions AFAICS.
the latter can be done with the above frontend specific lowering.
No, because it has to be done by the code that computes sizes and offsets
in the middle end.
next reply other threads:[~2004-02-04 16:14 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-04 16:14 Richard Kenner [this message]
2004-02-04 16:39 ` Michael Matz
-- strict thread matches above, loose matches on Subject: below --
2004-02-04 21:55 Richard Kenner
2004-02-04 21:25 Richard Kenner
2004-02-04 21:51 ` Paul Brook
2004-02-04 21:09 Richard Kenner
2004-02-05 5:32 ` Richard Henderson
2004-02-05 5:50 ` Geert Bosch
2004-02-04 20:55 Richard Kenner
2004-02-04 21:21 ` Paul Brook
2004-02-04 18:43 Richard Kenner
2004-02-04 19:49 ` Paul Brook
2004-02-04 20:15 ` Richard Henderson
2004-02-04 17:54 Richard Kenner
2004-02-04 18:39 ` Paul Brook
2004-02-04 15:49 Richard Kenner
2004-02-04 16:10 ` Michael Matz
2004-02-04 17:25 ` Robert Dewar
2004-02-04 15:21 Richard Kenner
2004-02-04 15:19 Richard Kenner
2004-02-04 15:31 ` Michael Matz
2004-02-04 15:16 S. Bosscher
2004-02-04 14:48 Richard Kenner
2004-02-04 14:36 Richard Kenner
2004-02-04 14:44 ` Andrew Pinski
2004-02-04 15:15 ` Michael Matz
2004-02-04 13:52 Richard Kenner
2004-02-04 13:29 S. Bosscher
2004-02-04 13:49 ` Paul Brook
2004-02-04 14:04 ` Michael Matz
2004-02-04 14:19 ` Robert Dewar
2004-02-04 14:31 ` Andrew Pinski
2004-02-04 14:53 ` Robert Dewar
2004-02-04 12:30 Richard Kenner
2004-02-03 16:20 "Documentation by paper" Richard Kenner
2004-02-03 16:54 ` Jan Hubicka
2004-02-03 16:58 ` What to remove after tree-ssa is merged? Paolo Bonzini
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