rs6000: Remove -misel={yes,no}

These options have been deprecated for many years, supplanted by -misel
and -mno-isel.  This patch finally removes them.


	* config/rs6000/rs6000.opt (misel=no, misel=yes): Delete.
	* doc/invoke.texi (RS/6000 and PowerPC Options): Delete -misel=yes and
	-misel=no.

From-SVN: r264447

gcc/ChangeLog

 2018-09-20  Segher Boessenkool  <segher@kernel.crashing.org>
 
+	* config/rs6000/rs6000.opt (misel=no, misel=yes): Delete.
+	* doc/invoke.texi (RS/6000 and PowerPC Options): Delete -misel=yes and
+	-misel=no.
+
+2018-09-20  Segher Boessenkool  <segher@kernel.crashing.org>
+
 	* config/rs6000/rs6000-opts.h (enum rs6000_vector): Delete
 	VECTOR_OTHER.
 	* config/rs6000/rs6000.c (rs6000_debug_vector_unit): Delete

gcc/config/rs6000/rs6000.opt

@@ -341,14 +341,6 @@ misel
 Target Report Mask(ISEL) Var(rs6000_isa_flags)
 Generate isel instructions.
 
-misel=no
-Target RejectNegative Alias(misel) NegativeAlias Warn(%<-misel=no%> is deprecated; use %<-mno-isel%> instead)
-Deprecated option.  Use -mno-isel instead.
-
-misel=yes
-Target RejectNegative Alias(misel) Warn(%<-misel=yes%> is deprecated; use %<-misel%> instead)
-Deprecated option.  Use -misel instead.
-
 mdebug=
 Target RejectNegative Joined
 -mdebug=	Enable debug output.

gcc/doc/invoke.texi

@@ -1113,7 +1113,6 @@ See RS/6000 and PowerPC Options.
 -mblock-compare-inline-loop-limit=@var{num} @gol
 -mstring-compare-inline-limit=@var{num} @gol
 -misel  -mno-isel @gol
--misel=yes  -misel=no @gol
 -mvrsave  -mno-vrsave @gol
 -mmulhw  -mno-mulhw @gol
 -mdlmzb  -mno-dlmzb @gol
@@ -23936,10 +23935,6 @@ This is a PowerPC 32-bit SYSV ABI option.
 @opindex mno-isel
 This switch enables or disables the generation of ISEL instructions.
 
-@item -misel=@var{yes/no}
-This switch has been deprecated.  Use @option{-misel} and
-@option{-mno-isel} instead.
-
 @item -mvsx
 @itemx -mno-vsx
 @opindex mvsx