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[Bug middle-end/30442] Expanded array initialization can use memset builtin function
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 14 Jan 2007 05:01:05 -0000
- Subject: [Bug middle-end/30442] Expanded array initialization can use memset builtin function
- References: <bug-30442-1649@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from pinskia at gcc dot gnu dot org 2007-01-14 05:01 -------
This is a bit complex, we could use a loop reroller to roll this into a loop
and then transform that loop into memset for test1.
For test2 it is simple and a patch was presented at last year's gcc summit (and
I posted an older version of that patch a year or two ago).
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
GCC build triplet|i686-pc-linux-gnu |
GCC host triplet|i686-pc-linux-gnu |
GCC target triplet|i686-pc-linux-gnu |
Keywords| |missed-optimization
Last reconfirmed|0000-00-00 00:00:00 |2007-01-14 05:01:04
date| |
Summary|Array initialization can use|Expanded array
|memset builtin function |initialization can use
| |memset builtin function
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30442