[gcc r16-6083] doc, lm32: Clean up LM32 option documentation [PR122243]

[Sandra Loosemore]

https://gcc.gnu.org/g:1b5e06cd377a38e0768ec996d520bfdc64b1420d

commit r16-6083-g1b5e06cd377a38e0768ec996d520bfdc64b1420d
Author: Sandra Loosemore <sloosemore@baylibre.com>
Date:   Fri Dec 5 17:07:23 2025 +0000

    doc, lm32: Clean up LM32 option documentation [PR122243]
    
    gcc/ChangeLog
            PR other/122243
            * doc/invoke.texi (LM32 Options): Add @opindex entries for negative
            option forms.

Diff:
---
 gcc/doc/invoke.texi | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index f5e435e61812..ee2477669ca4 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -28618,22 +28618,27 @@ These @option{-m} options are defined for the LatticeMico32 architecture:
 
 @table @gcctabopt
 @opindex mbarrel-shift-enabled
+@opindex mno-barrel-shift-enabled
 @item -mbarrel-shift-enabled
 Enable barrel-shift instructions.
 
 @opindex mdivide-enabled
+@opindex mno-divide-enabled
 @item -mdivide-enabled
 Enable divide and modulus instructions.
 
-@opindex multiply-enabled
+@opindex mmultiply-enabled
+@opindex mno-multiply-enabled
 @item -mmultiply-enabled
 Enable multiply instructions.
 
 @opindex msign-extend-enabled
+@opindex mno-sign-extend-enabled
 @item -msign-extend-enabled
 Enable sign extend instructions.
 
 @opindex muser-enabled
+@opindex mno-user-enabled
 @item -muser-enabled
 Enable user-defined instructions.