r172319 - in /branches/gcc-4_6-branch/gcc: Chan...

[jakub@gcc.gnu.org]

Author: jakub
Date: Tue Apr 12 13:44:33 2011
New Revision: 172319

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=172319
Log:
	PR rtl-optimization/48549
	* combine.c (propagate_for_debug): Also stop after BB_END of
	this_basic_block.  Process LAST and just stop processing after it.
	(combine_instructions): If last_combined_insn has been deleted,
	set last_combined_insn to its PREV_INSN.

	* g++.dg/opt/pr48549.C: New test.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/g++.dg/opt/pr48549.C
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/combine.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog