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r169013 - in /trunk/gcc: ChangeLog config/mn103...
- From: rth at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Wed, 19 Jan 2011 18:50:53 -0000
- Subject: r169013 - in /trunk/gcc: ChangeLog config/mn103...
Author: rth
Date: Wed Jan 19 18:50:52 2011
New Revision: 169013
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169013
Log:
mn10300: Emit retf instruction
Now that we properly track the life of MDR, we can emit
the RETF instruction if MDR has not been modified. This
insn is 3-4 cycles faster since the return address is
already loaded.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/mn10300/mn10300-protos.h
trunk/gcc/config/mn10300/mn10300.c
trunk/gcc/config/mn10300/mn10300.md