r150484 - in /branches/gcc-4_4-branch/gcc: Chan...

[jakub@gcc.gnu.org]

Author: jakub
Date: Wed Aug  5 12:54:21 2009
New Revision: 150484

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=150484
Log:
	PR rtl-optimization/40924
	* dse.c (canon_address): Before calling cselib_expand_value_rtx
	make sure canon_rtx (mem_address) isn't simpler than
	canon_rtx (expanded_mem_address).

	* g++.dg/torture/pr40924.C: New test.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/torture/pr40924.C
Modified:
    branches/gcc-4_4-branch/gcc/ChangeLog
    branches/gcc-4_4-branch/gcc/dse.c
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog