This updates the help text for some options to mention the allowed
values for -mXX=XX.

Tested on powerpc64-linux {-m32,-m64}; committing.


2018-04-10  Segher Boessenkool  <>

        PR target/85321
        * config/rs6000/rs6000.opt (mtraceback=): Show the allowed values in
        the help text.
        (mlong-double-): Ditto.
        * config/rs6000/sysv4.opt (msdata=): Ditto.
        (mtls-size=): Ditto.

 gcc/config/rs6000/rs6000.opt | 4 ++--
 gcc/config/rs6000/sysv4.opt  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/gcc/config/rs6000/rs6000.opt b/gcc/config/rs6000/rs6000.opt
index 8ccb7e1..b35c84e 100644
--- a/gcc/config/rs6000/rs6000.opt
+++ b/gcc/config/rs6000/rs6000.opt
@@ -399,7 +399,7 @@ Target RejectNegative Joined Var(rs6000_tune_index) 
Init(-1) Enum(rs6000_cpu_opt
 Target RejectNegative Joined Enum(rs6000_traceback_type) Var(rs6000_traceback)
--mtraceback=   Select full, part, or no traceback table.
+-mtraceback=[full,part,no]     Select type of traceback table.
 Name(rs6000_traceback_type) Type(enum rs6000_traceback_type)
@@ -427,7 +427,7 @@ Warn about deprecated 'vector long ...' AltiVec type usage.
 Target RejectNegative Joined UInteger Var(rs6000_long_double_type_size) Save
--mlong-double-<n>      Specify size of long double (64 or 128 bits).
+-mlong-double-[64,128] Specify size of long double.
 ; This option existed in the past, but now is always on.
diff --git a/gcc/config/rs6000/sysv4.opt b/gcc/config/rs6000/sysv4.opt
index fb03c0a..50be7b1 100644
--- a/gcc/config/rs6000/sysv4.opt
+++ b/gcc/config/rs6000/sysv4.opt
@@ -25,7 +25,7 @@ Select ABI calling convention.
 Target RejectNegative Joined Var(rs6000_sdata_name)
-Select method for sdata handling.
+-msdata=[none,data,sysv,eabi]  Select method for sdata handling.
 Target Report Var(rs6000_readonly_in_sdata) Init(1) Save
@@ -33,7 +33,7 @@ Allow readonly data in sdata.
 Target RejectNegative Joined Var(rs6000_tls_size) Enum(rs6000_tls_size)
-Specify bit size of immediate TLS offsets.
+-mtls-size=[16,32]     Specify bit size of immediate TLS offsets.
 Name(rs6000_tls_size) Type(int)

Reply via email to