[M3commit] CVS Update: cm3

[Rodney M. Bates]

CVSROOT:	/usr/cvs
Changes by:	rodney at birch.	09/02/24 03:06:50

Modified files:
	cm3/m3-sys/m3cc/gcc/gcc/: tree-cfg.c 
	cm3/m3-sys/m3gdb/gdb/gdb/: dbxread.c 

Log message:
	Fix a bug in the case where the presence of a nested
	procedure inside a block with no local variables made
	m3gdb unable to renest the procedure.  The compiler
	unnests procedures, and m3gdb renests them by relating
	the mangled procedure name (which encodes a complete
	accessing path to where the procedure is declared) to
	the structure of nested blocks given by the debug
	information.
	
	Both the compiler and gdb were throwing away blocks
	with no variables, leaving m3gdb unable to find the
	right block.  This had to be fixed in both places.