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r227132 - in /trunk/gcc: ChangeLog config/i386/...


Author: hjl
Date: Mon Aug 24 15:24:44 2015
New Revision: 227132

URL: https://gcc.gnu.org/viewcvs?rev=227132&root=gcc&view=rev
Log:
Update MOVE_RATIO cost for IA MCU

This patch updates MOVE_RATIO cost for IA MCU from 6 to 9 so that we
can unroll the loop completely for DOM with -mtune=iamcu.

gcc/

	PR target/67329
	* config/i386/i386.c (iamcu_cost): Set MOVE_RATIO cost to 9.

gcc/testsuite/

	PR target/67329
	* gcc.target/i386/pr67329.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr67329.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog


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