I'm not sure what the rationale is for having "RejectNegative" on all
of the options that control instruction usage except for -mdouble-float,
but with this patch the documentation matches what is in the .opt files.

gcc/ChangeLog
        PR other/122243
        * config/or1k/elf.opt (mnewlib): Mark obsolete option as
        "Undocumented".
        * config/or1k/or1k.opt (mcmov): Don't use future tense in doc string.
        (msfimm): Likewise.
        (mshftimm): Likewise.
        * doc/invoke.texi (Option Summary) <OpenRISC Options>: Don't
        document -mnewlib.
        (OpenRISC Options): Likewise.  Add @opindex entry for
        -mno-double-float.  Fix more instances of incorrect use of future
        tense.
---
 gcc/config/or1k/elf.opt  |  2 +-
 gcc/config/or1k/or1k.opt |  6 +++---
 gcc/doc/invoke.texi      | 16 ++++++----------
 3 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/gcc/config/or1k/elf.opt b/gcc/config/or1k/elf.opt
index 28e960ed208..578aba3ba04 100644
--- a/gcc/config/or1k/elf.opt
+++ b/gcc/config/or1k/elf.opt
@@ -28,6 +28,6 @@ Target RejectNegative Joined
 Configure the newlib board specific runtime.  The default is or1ksim.
 
 mnewlib
-Target RejectNegative
+Target RejectNegative Undocumented
 This option is ignored; it is provided for compatibility purposes only.  This
 used to select linker and preprocessor options for use with newlib.
diff --git a/gcc/config/or1k/or1k.opt b/gcc/config/or1k/or1k.opt
index d252de08204..9ce8b800ed5 100644
--- a/gcc/config/or1k/or1k.opt
+++ b/gcc/config/or1k/or1k.opt
@@ -85,7 +85,7 @@ Enum(or1k_cmodel_type) String(large) Value(CMODEL_LARGE)
 mcmov
 Target RejectNegative Mask(CMOV)
 Enable generation of conditional move (l.cmov) instructions.  By default the
-equivalent will be generated using set and branch.
+equivalents are generated using set and branch.
 
 mror
 Target RejectNegative Mask(ROR)
@@ -106,11 +106,11 @@ loads are used to perform sign extension.
 msfimm
 Target RejectNegative Mask(SFIMM)
 Enable generation of compare and set flag with immediate (l.sf*i) instructions.
-By default extra instructions will be generated to store the immediate to a
+By default extra instructions are generated to store the immediate to a
 register first.
 
 mshftimm
 Target RejectNegative Mask(SHFTIMM)
 Enable generation of shift with immediate (l.srai, l.srli, l.slli) 
instructions.
-By default extra instructions will be generated to store the immediate to a
+By default extra instructions are generated to store the immediate to a
 register first.
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 62afc5a66dd..f403d20bc0b 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -1285,7 +1285,7 @@ Objective-C and Objective-C++ Dialects}.
 -mmainkernel  -moptimize  -msoft-stack  -muniform-simt  -mgomp}
 
 @emph{OpenRISC Options} (@ref{OpenRISC Options})
-@gccoptlist{-mboard=@var{name}  -mnewlib  -mhard-mul  -mhard-div
+@gccoptlist{-mboard=@var{name}  -mhard-mul  -mhard-div
 -msoft-mul  -msoft-div
 -msoft-float  -mhard-float  -mdouble-float -munordered-float
 -mcmov  -mror  -mrori  -msext  -msfimm  -mshftimm
@@ -31580,14 +31580,9 @@ These options are defined for OpenRISC:
 
 @opindex mboard
 @item -mboard=@var{name}
-Configure a board specific runtime.  This will be passed to the linker for
+Configure a board specific runtime.  This is passed to the linker for
 newlib board library linking.  The default is @code{or1ksim}.
 
-@opindex mnewlib
-@item -mnewlib
-This option is ignored; it is for compatibility purposes only.  This used to
-select linker and preprocessor options for use with newlib.
-
 @opindex msoft-div
 @opindex mhard-div
 @item -msoft-div
@@ -31610,6 +31605,7 @@ Select software or hardware for floating point 
operations.
 The default is software.
 
 @opindex mdouble-float
+@opindex mno-double-float
 @item -mdouble-float
 When @option{-mhard-float} is selected, enables generation of double-precision
 floating point instructions.  By default functions from @file{libgcc} are used
@@ -31625,7 +31621,7 @@ compare and set flag operations.
 @opindex mcmov
 @item -mcmov
 Enable generation of conditional move (@code{l.cmov}) instructions.  By
-default the equivalent will be generated using set and branch.
+default the equivalents are generated using set and branch.
 
 @opindex mror
 @item -mror
@@ -31646,13 +31642,13 @@ memory loads are used to perform sign extension.
 @opindex msfimm
 @item -msfimm
 Enable generation of compare and set flag with immediate (@code{l.sf*i})
-instructions.  By default extra instructions will be generated to store the
+instructions.  By default extra instructions are generated to store the
 immediate to a register first.
 
 @opindex mshftimm
 @item -mshftimm
 Enable generation of shift with immediate (@code{l.srai}, @code{l.srli},
-@code{l.slli}) instructions.  By default extra instructions will be generated
+@code{l.slli}) instructions.  By default extra instructions are generated
 to store the immediate to a register first.
 
 @opindex mcmodel=
-- 
2.39.5

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