Andrew pointed out that I did not document the new architecture extension flag I…

Andrew pointed out that I did not document the new architecture extension flag I added for the RcPc extension.

Andrew pointed out that I did not document the new architecture extension
flag I added for the RcPc extension. This was intentional, as enabling the
rcpc extension does not change GCC code generation, and is just
an assembler flag. But for completeness, here is documentation for the
new option.

gcc/

2017-07-03  James Greenhalgh  <james.greenhalgh@arm.com>

	* doc/invoke.texi (rcpc architecture extension): Document it.

From-SVN: r249923

gcc/ChangeLog

+2017-07-03  James Greenhalgh  <james.greenhalgh@arm.com>
+
+	* doc/invoke.texi (rcpc architecture extension): Document it.
+
 2017-07-03  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/60510

gcc/doc/invoke.texi

@@ -14201,6 +14201,10 @@ Enable Large System Extension instructions.  This is on by default for
 @option{-march=armv8.1-a}.
 @item fp16
 Enable FP16 extension.  This also enables floating-point instructions.
+@item rcpc
+Enable the RcPc extension.  This does not change code generation from GCC,
+but is passed on to the assembler, enabling inline asm statements to use
+instructions from the RcPc extension.
 
 @end table