2004-10-09  Roger Sayle  <roger@eyesopen.com>

	PR rtl-optimization/17853
	* simplify-rtx.c (simplify_relational_operation): Correct comment.
	Reorganize handling of comparison operations with floating point
	results (always return 0.0 even without FLOAT_STORE_FLAG_VALUE).
	Likewise, introduce support for comparison operations with vector
	result types, introducing a new VECTOR_STORE_FLAG_VALUE target macro.

	* doc/rtl.texi: Document new VECTOR_STORE_FLAG_VALUE target macro.
	* doc/tm.texi: Likewise.

2004-10-09  Stuart Hastings  <stuart@apple.com>
	    Roger Sayle  <roger@eyesopen.com>

	PR rtl-optimization/17853
	* gcc.dg/i386-mmx-5.c: New testcase.

From-SVN: r88826