GCC: ChangeLog, 1.58 -> 1.59

[Jan-Benedict Glaw]

Update of /mnt/vax-development/CVS_Repository/gcc/gcc
In directory mail:/mnt/vax-development/local_work/work-jbglaw/local-cvs/gcc/gcc

Modified Files:
	ChangeLog 
Log Message:
- - - -- -- A U T O M A T I C   C H E C K I N -- -- - - -
	Make unsafe vector float optimizations dependent on -ffast-math.
	* tree.h (VECTOR_FLOAT_TYPE_P): New.
	(FLOAT_TYPE_P): Use it.
	* c-typeck.c (build_binary_op): After convert calls, check for
	check for ERROR_MARK operands.