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| author | Richard Sandiford <rsandifo@redhat.com> | 2005-03-30 06:26:20 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2005-03-30 06:26:20 +0000 |
| commit | f9b4c1db7dc1e30266f20e75090536be4b31349e (patch) | |
| tree | b152d202dc17656211a9a89321ad98a6b1221dd2 /gcc | |
| parent | a56a0779225c46f783c80ea3c749587f4b09ec62 (diff) | |
| download | gcc-f9b4c1db7dc1e30266f20e75090536be4b31349e.zip gcc-f9b4c1db7dc1e30266f20e75090536be4b31349e.tar.gz gcc-f9b4c1db7dc1e30266f20e75090536be4b31349e.tar.bz2 | |
options.texi: Document the new MaskExists flag.
* doc/options.texi: Document the new MaskExists flag.
* opth-gen.awk: Don't output MASK and TARGET macros for Mask(...)
if the option has the MaskExists flag.
From-SVN: r97238
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/doc/options.texi | 10 | ||||
| -rw-r--r-- | gcc/opth-gen.awk | 4 |
3 files changed, 19 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d9f08ed..bd91133 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,4 +1,10 @@ -2005-03-20 Richard Sandiford <rsandifo@redhat.com> +2005-03-30 Richard Sandiford <rsandifo@redhat.com> + + * doc/options.texi: Document the new MaskExists flag. + * opth-gen.awk: Don't output MASK and TARGET macros for Mask(...) + if the option has the MaskExists flag. + +2005-03-30 Richard Sandiford <rsandifo@redhat.com> * opt-functions.awk (flag_set_p, test_flag): New functions. (switch_flags): Use them. diff --git a/gcc/doc/options.texi b/gcc/doc/options.texi index 138ebdb..959f952 100644 --- a/gcc/doc/options.texi +++ b/gcc/doc/options.texi @@ -144,6 +144,7 @@ The options-processing script will automatically allocate a unique bit for the option and set the macro @code{MASK_@var{name}} to the appropriate bitmask. It will also declare a @code{TARGET_@var{name}} macro that has the value 1 when the option is active and 0 otherwise. +You can disable this behavior using @code{MaskExists}. @item InverseMask(@var{othername}) @itemx InverseMask(@var{othername}, @var{thisname}) @@ -152,6 +153,15 @@ The option is the inverse of another option that has the the options-processing script will declare a @code{TARGET_@var{thisname}} macro that is 1 when the option is active and 0 otherwise. +@item MaskExists +The mask specified by the @code{Mask} property already exists. +No @code{MASK} or @code{TARGET} definitions should be added to +@file{options.h} in response to this option record. + +The main purpose of this property is to support synonymous options. +The first option should use @samp{Mask(@var{name})} and the others +should use @samp{Mask(@var{name}) MaskExists}. + @item Report The state of the option should be printed by @option{-fverbose-asm}. diff --git a/gcc/opth-gen.awk b/gcc/opth-gen.awk index 3839af9..d980b12 100644 --- a/gcc/opth-gen.awk +++ b/gcc/opth-gen.awk @@ -70,7 +70,7 @@ for (i = 0; i < n_opts; i++) { masknum = 0 for (i = 0; i < n_opts; i++) { name = opt_args("Mask", flags[i]) - if (name != "") + if (name != "" && !flag_set_p("MaskExists", flags[i])) print "#define MASK_" name " (1 << " masknum++ ")" } if (masknum > 31) @@ -79,7 +79,7 @@ print "" for (i = 0; i < n_opts; i++) { name = opt_args("Mask", flags[i]) - if (name != "") + if (name != "" && !flag_set_p("MaskExists", flags[i])) print "#define TARGET_" name \ " ((target_flags & MASK_" name ") != 0)" } |