r141195 - in /branches/gcc-4_3-branch/gcc: Chan...

[amacleod@gcc.gnu.org]

Author: amacleod
Date: Fri Oct 17 17:35:58 2008
New Revision: 141195

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=141195
Log:
fix PR tree-optimization/37102

2008-10-17  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/37102
	* tree-outof-ssa.c (remove_gimple_phi_args): Remove all the PHI args  
	from a node. Check to see if another PHI is dead.
	(eliminate_useless_phis): Rename from eliminate_virtual_phis and remove
	real PHIs which have no uses.
	(rewrite_out_of_ssa): Call eliminate_useless_phis.

2008-10-17  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/37102
	* gcc.c-torture/execute/pr37102.c: New Test.


Added:
    branches/gcc-4_3-branch/gcc/testsuite/gcc.c-torture/execute/pr37102.c
Modified:
    branches/gcc-4_3-branch/gcc/ChangeLog
    branches/gcc-4_3-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_3-branch/gcc/tree-outof-ssa.c