r179214 - in /trunk/gcc: ChangeLog config/sparc...

[davem@gcc.gnu.org]

Author: davem
Date: Mon Sep 26 20:21:19 2011
New Revision: 179214

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179214
Log:
Fix sparc %gsr write elimination and add a testcase.

gcc/

	* config/sparc/sparc.c (sparc_conditional_register_usage): When VIS
	is enabled, mark %gsr as global.
	* config/sparc/sparc.md (UNSPEC_WRGSR): Delete.
	(wrgsr_vis, *wrgsr_sp64, wrgsr_v8plus): Don't wrap in an unspec.

gcc/testsuite/

	* gcc.target/sparc/wrgsr.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/sparc/wrgsr.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/sparc/sparc.c
    trunk/gcc/config/sparc/sparc.md
    trunk/gcc/testsuite/ChangeLog