r156692 - in /trunk/gcc: ChangeLog dwarf2out.c

[jakub@gcc.gnu.org]

Author: jakub
Date: Thu Feb 11 09:16:38 2010
New Revision: 156692

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=156692
Log:
	* dwarf2out.c (mem_loc_descriptor) <case MEM>: Use DW_OP_deref_size
	if MEM's mode size isn't DWARF2_ADDR_SIZE.
	(mem_loc_descriptor) <do_scompare>: Allow also VOIDmode arguments.
	Optimize eq/ne comparisons when both arguments are known to be
	zero-extended.
	(mem_loc_descriptor) <do_ucompare>: Allow also VOIDmode arguments.
	Don't mask operands unnecessarily if they are known to be already
	zero-extended.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c