re PR target/85321 (Missing documentation and option misc for ppc64le)

2018-04-11  Aaron Sawdey  <acsawdey@linux.ibm.com>

	PR target/85321
	* doc/invoke.texi (RS/6000 and PowerPC Options): Document options
	-mcall- and -mtraceback=. Remove options -mabi=spe and -mabi=no-spe
	from PowerPC section.
	* config/rs6000/sysv4.opt (mcall-): Improve help text.
	* config/rs6000/rs6000.opt (mblock-compare-inline-limit=): Trim
	help text that is too long.
	* config/rs6000/rs6000.opt (mblock-compare-inline-loop-limit=): Trim
	help text that is too long.
	* config/rs6000/rs6000.opt (mstring-compare-inline-limit=): Trim
	help text that is too long.

From-SVN: r259324

gcc/ChangeLog

+2018-04-11  Aaron Sawdey  <acsawdey@linux.ibm.com>
+
+	PR target/85321
+	* doc/invoke.texi (RS/6000 and PowerPC Options): Document options
+	-mcall- and -mtraceback=. Remove options -mabi=spe and -mabi=no-spe
+	from PowerPC section.
+	* config/rs6000/sysv4.opt (mcall-): Improve help text.
+	* config/rs6000/rs6000.opt (mblock-compare-inline-limit=): Trim
+	help text that is too long.
+	* config/rs6000/rs6000.opt (mblock-compare-inline-loop-limit=): Trim
+	help text that is too long.
+	* config/rs6000/rs6000.opt (mstring-compare-inline-limit=): Trim
+	help text that is too long.
+
 2018-04-11  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/alpha/alpha.md (stack_probe_internal): Rename

gcc/config/rs6000/rs6000.opt

@@ -331,19 +331,19 @@ Deprecated option.  Use -mvrsave instead.
 
 mblock-move-inline-limit=
 Target Report Var(rs6000_block_move_inline_limit) Init(0) RejectNegative Joined UInteger Save
-Specify how many bytes should be moved inline before calling out to memcpy/memmove.
+Max number of bytes to move inline.
 
 mblock-compare-inline-limit=
 Target Report Var(rs6000_block_compare_inline_limit) Init(31) RejectNegative Joined UInteger Save
-Specify the maximum number of bytes to compare inline with non-looping code. If this is set to 0, all inline expansion (non-loop and loop) of memcmp is disabled.
+Max number of bytes to compare without loops.
 
 mblock-compare-inline-loop-limit=
 Target Report Var(rs6000_block_compare_inline_loop_limit) Init(-1) RejectNegative Joined UInteger Save
-Specify the maximum number of bytes to compare inline with loop code generation.  If the length is not known at compile time, memcmp will be called after this many bytes are compared. By default, a length will be picked depending on the tuning target.
+Max number of bytes to compare with loops.
 
 mstring-compare-inline-limit=
 Target Report Var(rs6000_string_compare_inline_limit) Init(8) RejectNegative Joined UInteger Save
-Specify the maximum number pairs of load instructions that should be generated inline for the compare.  If the number needed exceeds the limit, a call to strncmp will be generated instead.
+Max number of pairs of load insns for compare.
 
 misel
 Target Report Mask(ISEL) Var(rs6000_isa_flags)

gcc/config/rs6000/sysv4.opt

@@ -21,7 +21,7 @@
 
 mcall-
 Target RejectNegative Joined Var(rs6000_abi_name)
-Select ABI calling convention.
+-mcall-ABI	Select ABI calling convention.
 
 msdata=
 Target RejectNegative Joined Var(rs6000_sdata_name)

gcc/doc/invoke.texi

@@ -1076,7 +1076,10 @@ See RS/6000 and PowerPC Options.
 -mprioritize-restricted-insns=@var{priority} @gol
 -msched-costly-dep=@var{dependence_type} @gol
 -minsert-sched-nops=@var{scheme} @gol
--mcall-sysv  -mcall-netbsd @gol
+-mcall-aixdesc  -mcall-eabi  -mcall-freebsd  @gol
+-mcall-linux  -mcall-netbsd  -mcall-openbsd  @gol
+-mcall-sysv  -mcall-sysv-eabi  -mcall-sysv-noeabi @gol
+-mtraceback=@var{traceback_type} @gol
 -maix-struct-return  -msvr4-struct-return @gol
 -mabi=@var{abi-type}  -msecure-plt  -mbss-plt @gol
 -mblock-move-inline-limit=@var{num} @gol
@@ -23957,6 +23960,11 @@ NetBSD operating system.
 On System V.4 and embedded PowerPC systems compile code for the
 OpenBSD operating system.
 
+@item -mtraceback=@var{traceback_type}
+@opindex mtraceback
+Select the type of traceback table. Valid values for @var{traceback_type}
+are @samp{full}, @samp{part}, and @samp{no}.
+
 @item -maix-struct-return
 @opindex maix-struct-return
 Return all structures in memory (as specified by the AIX ABI)@.
@@ -23973,16 +23981,6 @@ Valid values are @samp{altivec}, @samp{no-altivec}, @samp{spe},
 @samp{no-spe}, @samp{ibmlongdouble}, @samp{ieeelongdouble},
 @samp{elfv1}, @samp{elfv2}@.
 
-@item -mabi=spe
-@opindex mabi=spe
-Extend the current ABI with SPE ABI extensions.  This does not change
-the default ABI, instead it adds the SPE ABI extensions to the current
-ABI@.
-
-@item -mabi=no-spe
-@opindex mabi=no-spe
-Disable Book-E SPE ABI extensions for the current ABI@.
-
 @item -mabi=ibmlongdouble
 @opindex mabi=ibmlongdouble
 Change the current ABI to use IBM extended-precision long double.