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r168928 - in /trunk/gcc: ChangeLog config/rx/rx...
- From: rth at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Mon, 17 Jan 2011 18:18:25 -0000
- Subject: r168928 - in /trunk/gcc: ChangeLog config/rx/rx...
Author: rth
Date: Mon Jan 17 18:18:24 2011
New Revision: 168928
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168928
Log:
rx: Replace sat builtin with ssaddsi3 pattern.
A standalone __builtin_rx_sat isn't implementable due to needing
to keep the flags live before reload. Instead provide a saturating
add pattern, which hopefully will be pattern-matched by high-level
optimizations.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/rx/rx.c
trunk/gcc/config/rx/rx.md