gdb/
2013-01-14  Yao Qi  <yao@codesourcery.com>

	* dbxread.c (dbx_psymtab_to_symtab_1): Don't check PST is NULL.
	(dbx_psymtab_to_symtab): Likewise.
	* dwarf2read.c (dwarf2_psymtab_to_symtab): Likewise.
	* mdebugread.c (mdebug_psymtab_to_symtab): Likewise.
	* xcoffread.c (xcoff_psymtab_to_symtab_1): Likewise.
	* metag-dis.c (REG_WIDTH): Increase to 64.

	* gas/metag/metadsp21.d: Fix expected MMOV disassembly.