From: Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
To: gcc@gcc.gnu.org
Subject: [tree-ssa] Lazy updating of stmt operands
Date: Sun, 07 Dec 2003 16:22:00 -0000 [thread overview]
Message-ID: <20031207161929.GA10638@atrey.karlin.mff.cuni.cz> (raw)
Hello,
what is the purpose of having lists of stmt operands updated on demand?
I thought that it is for performance reasons, but this seems not to be
the case as all the statements are anyway scanned in the final dce pass,
so they end up in updated forms and we cannot gain anything elsewhere.
Why I am interested in this is that it prevents us from having also
def-use edges (immediate uses) provided explicitly, which would be
convenient in two cases I have encountered recently.
Zdenek
next reply other threads:[~2003-12-07 16:19 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-07 16:22 Zdenek Dvorak [this message]
2003-12-07 17:14 ` Diego Novillo
2003-12-07 17:28 ` Zdenek Dvorak
2003-12-07 17:36 ` Diego Novillo
2003-12-07 18:09 ` Zdenek Dvorak
2003-12-11 19:39 ` law
2003-12-07 22:20 ` Steven Bosscher
2003-12-09 14:30 ` Andrew MacLeod
2003-12-09 20:40 ` Zdenek Dvorak
2003-12-11 19:41 ` law
2003-12-11 19:38 ` law
2003-12-11 19:52 ` Zdenek Dvorak
2003-12-11 22:36 ` Zdenek Dvorak
2003-12-11 23:34 ` Andrew MacLeod
2003-12-15 19:10 ` Andrew MacLeod
2003-12-15 19:19 ` Zdenek Dvorak
2003-12-15 20:55 ` Andrew MacLeod
2003-12-15 21:06 ` Zdenek Dvorak
2003-12-15 21:39 ` Andrew MacLeod
2003-12-15 21:49 ` Zdenek Dvorak
2003-12-15 22:04 ` Andrew MacLeod
2003-12-15 22:39 ` law
2003-12-17 4:56 ` law
2003-12-16 23:32 ` Andrew MacLeod
2003-12-17 0:09 ` Zdenek Dvorak
2003-12-17 0:21 ` Andrew MacLeod
2003-12-17 3:28 ` law
2003-12-15 19:28 ` Diego Novillo
2003-12-11 22:31 Chris Lattner
2003-12-12 3:14 ` law
2003-12-12 3:58 ` Chris Lattner
2003-12-12 19:25 ` Andrew MacLeod
2003-12-12 19:42 ` Zdenek Dvorak
2003-12-12 19:45 ` Andrew MacLeod
2003-12-12 19:54 ` Chris Lattner
2003-12-12 19:55 ` Andrew MacLeod
2003-12-12 21:26 ` Diego Novillo
2003-12-12 19:57 ` Chris Lattner
2003-12-13 16:02 ` Andrew MacLeod
2003-12-14 3:39 ` Chris Lattner
2003-12-15 23:41 ` law
2003-12-16 6:02 ` Andrew MacLeod
2003-12-15 20:47 Chris Lattner
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