invoke.texi (i386 and x86-64 Options): Two small spell fixes.

	* doc/invoke.texi (i386 and x86-64 Options) [mrecip]:
	Two small spell fixes.

From-SVN: r131414

gcc/doc/invoke.texi

@@ -10647,14 +10647,14 @@ or @code{remainder} built-in functions: see @ref{Other Builtins} for details.
 @item -mrecip
 @opindex mrecip
 This option will enable GCC to use RCPSS and RSQRTSS instructions (and their
-vectorized variants RCPPS and RSQRTPS) with additional Newton-Rhapson step
+vectorized variants RCPPS and RSQRTPS) with an additional Newton-Rhapson step
 to increase precision instead of DIVSS and SQRTSS (and their vectorized
 variants) for single precision floating point arguments.  These instructions
 are generated only when @option{-funsafe-math-optimizations} is enabled
 together with @option{-finite-math-only} and @option{-fno-trapping-math}.
 Note that while the throughput of the sequence is higher than the throughput
 of the non-reciprocal instruction, the precision of the sequence can be
-decreased up to 2 ulp (i.e. the inverse of 1.0 equals 0.99999994).
+decreased by up to 2 ulp (i.e. the inverse of 1.0 equals 0.99999994).
 
 @item -mveclibabi=@var{type}
 @opindex mveclibabi