Improve --help output to generate references to option aliases.

gcc/
	PR driver/68043
	* opts.c (undocumented_msg, use_diagnosed_msg): New globals.
	(print_filtered_help): Reference aliased option's name and encourage
	readers to use it in preference to the alias if the former is not
	documented.  Mention when using an option is diagnosed.
	* gcc.c (display_help): End each sentence with a period.

	* ada/gcc-interface/lang.opt: End each sentence that describes
	an option with a period.
	* c-family/c.opt: Same.
	* common.opt: Same.
	* config/aarch64/aarch64.opt: Same.
	* config/alpha/alpha.opt: Same.
	* config/arc/arc.opt: Same.
	* config/arm/arm.opt: Same.
	* config/avr/avr.opt: Same.
	* config/bfin/bfin.opt: Same.
	* config/c6x/c6x.opt: Same.
	* config/cr16/cr16.opt: Same.
	* config/cris/cris.opt: Same.
	* config/cris/linux.opt: Same.
	* config/darwin.opt: Same.
	* config/epiphany/epiphany.opt: Same.
	* config/fr30/fr30.opt: Same.
	* config/frv/frv.opt: Same.
	* config/ft32/ft32.opt: Same.
	* config/g.opt: Same.
	* config/h8300/h8300.opt: Same.
	* config/i386/cygming.opt: Same.
	* config/i386/djgpp.opt: Same.
	* config/i386/i386.opt: Same.
	* config/i386/interix.opt: Same.
	* config/i386/mingw-w64.opt: Same.
	* config/i386/mingw.opt: Same.
	* config/ia64/ia64.opt: Same.
	* config/ia64/ilp32.opt: Same.
	* config/iq2000/iq2000.opt: Same.
	* config/linux.opt: Same.
	* config/lm32/lm32.opt: Same.
	* config/lynx.opt: Same.
	* config/m32c/m32c.opt: Same.
	* config/m32r/m32r.opt: Same.
	* config/m68k/ieee.opt: Same.
	* config/m68k/m68k.opt: Same.
	* config/mcore/mcore.opt: Same.
	* config/mep/mep.opt: Same.
	* config/microblaze/microblaze.opt: Same.
	* config/mips/mips.opt: Same.
	* config/mmix/mmix.opt: Same.
	* config/mn10300/mn10300.opt: Same.
	* config/moxie/moxie.opt: Same.
	* config/msp430/msp430.opt: Same.
	* config/nios2/elf.opt: Same.
	* config/nios2/nios2.opt: Same.
	* config/nvptx/nvptx.opt: Same.
	* config/pa/pa-hpux.opt: Same.
	* config/pa/pa-hpux1010.opt: Same.
	* config/pa/pa-hpux1111.opt: Same.
	* config/pa/pa-hpux1131.opt: Same.
	* config/pa/pa.opt: Same.
	* config/pa/pa64-hpux.opt: Same.
	* config/pdp11/pdp11.opt: Same.
	* config/rl78/rl78.opt: Same.
	* config/rs6000/476.opt: Same.
	* config/rs6000/aix64.opt: Same.
	* config/rs6000/darwin.opt: Same.
	* config/rs6000/linux64.opt: Same.
	* config/rs6000/rs6000.opt: Same.
	* config/rs6000/sysv4.opt: Same.
	* config/s390/s390.opt: Same.
	* config/s390/tpf.opt: Same.
	* config/sh/sh.opt: Same.
	* config/sol2.opt: Same.
	* config/sparc/long-double-switch.opt: Same.
	* config/sparc/sparc.opt: Same.
	* config/spu/spu.opt: Same.
	* config/stormy16/stormy16.opt: Same.
	* config/tilegx/tilegx.opt: Same.
	* config/tilepro/tilepro.opt: Same.
	* config/v850/v850.opt: Same.
	* config/vax/vax.opt: Same.
	* config/visium/visium.opt: Same.
	* config/vms/vms.opt: Same.
	* config/vxworks.opt: Same.
	* config/xtensa/xtensa.opt: Same.
	* fortran/lang.opt: Same.

testsuite/
	PR driver/68043
	* gcc.misc-tests/help.exp: Adjust.
	* lib/options.exp (check_for_options): Add detail to output.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229155 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 17 insertions, 17 deletions

diff --git a/gcc/config/pdp11/pdp11.opt b/gcc/config/pdp11/pdp11.opt
index 8fab76a2011..ff27a9f4b42 100644
--- a/gcc/config/pdp11/pdp11.opt
+++ b/gcc/config/pdp11/pdp11.opt
@@ -20,68 +20,68 @@
 
 m10
 Target RejectNegative
-Generate code for an 11/10
+Generate code for an 11/10.
 
 m40
 Target Report Mask(40)
-Generate code for an 11/40
+Generate code for an 11/40.
 
 m45
 Target Report Mask(45)
-Generate code for an 11/45
+Generate code for an 11/45.
 
 mac0
 Target Report Mask(AC0)
-Return floating-point results in ac0 (fr0 in Unix assembler syntax)
+Return floating-point results in ac0 (fr0 in Unix assembler syntax).
 
 mbcopy
 Target RejectNegative Report Mask(BCOPY)
-Do not use inline patterns for copying memory
+Do not use inline patterns for copying memory.
 
 mbcopy-builtin
 Target RejectNegative Report InverseMask(BCOPY, BCOPY_BUILTIN)
-Use inline patterns for copying memory
+Use inline patterns for copying memory.
 
 mbranch-cheap
 Target RejectNegative Report InverseMask(BRANCH_EXPENSIVE, BRANCH_CHEAP)
-Do not pretend that branches are expensive
+Do not pretend that branches are expensive.
 
 mbranch-expensive
 Target RejectNegative Report Mask(BRANCH_EXPENSIVE)
-Pretend that branches are expensive
+Pretend that branches are expensive.
 
 mdec-asm
 Target RejectNegative Report InverseMask(UNIX_ASM)
-Use the DEC assembler syntax
+Use the DEC assembler syntax.
 
 mfloat32
 Target Report Mask(FLOAT32)
-Use 32 bit float
+Use 32 bit float.
 
 mfloat64
 Target Report InverseMask(FLOAT32, FLOAT64)
-Use 64 bit float
+Use 64 bit float.
 
 mfpu
 Target RejectNegative Report Mask(FPU)
-Use hardware floating point
+Use hardware floating point.
 
 mint16
 Target Report InverseMask(INT32, INT16)
-Use 16 bit int
+Use 16 bit int.
 
 mint32
 Target Report Mask(INT32)
-Use 32 bit int
+Use 32 bit int.
 
 msoft-float
 Target RejectNegative Report InverseMask(FPU, SOFT_FLOAT)
-Do not use hardware floating point
+Do not use hardware floating point.
 
 msplit
 Target Report Mask(SPLIT)
-Target has split I&D
+Target has split I&D.
 
 munix-asm
 Target RejectNegative Report Mask(UNIX_ASM)
-Use UNIX assembler syntax
+Use UNIX assembler syntax.