r194607 - in /trunk/gcc: ChangeLog dwarf2out.c ...

[jakub@gcc.gnu.org]

Author: jakub
Date: Wed Dec 19 12:16:56 2012
New Revision: 194607

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194607
Log:
	PR debug/55730
	* dwarf2out.c (mem_loc_descriptor): Ignore CLOBBER.
	* valtrack.c (gen_lowpart_for_debug): New function.
	(propagate_for_debug): Temporarily set rtl_hooks.gen_lowpart_no_emit
	to gen_lowpart_for_debug.

	* gcc.dg/debug/pr55730.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/debug/pr55730.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/valtrack.c