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| author | Richard Sandiford <rdsandiford@googlemail.com> | 2008-07-12 07:57:42 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2008-07-12 07:57:42 +0000 |
| commit | 2feaae2036b73d182f8ee0d72722c21ede9dbbbb (patch) | |
| tree | 851961de1f0ab81190bec7912d2e8cc79662b6e2 /gcc/doc/md.texi | |
| parent | 4f72fd0bcf71d540cbb8637bdc4079a8b25bb9a3 (diff) | |
| download | gcc-2feaae2036b73d182f8ee0d72722c21ede9dbbbb.zip gcc-2feaae2036b73d182f8ee0d72722c21ede9dbbbb.tar.gz gcc-2feaae2036b73d182f8ee0d72722c21ede9dbbbb.tar.bz2 | |
md.texi: Document the MIPS "v" constraint.
gcc/
* doc/md.texi: Document the MIPS "v" constraint.
* config/mips/mips.h (reg_class): Revert last change.
(REG_CLASS_NAMES): Likewise.
(REG_CLASS_CONTENTS): Likewise.
* config/mips/mips.c (mips_regno_to_class): Likewise.
* config/mips/constraints.md (v): Likewise, but add documentation.
Add a comment to say that this constraint should not be used in
gcc code.
From-SVN: r137734
Diffstat (limited to 'gcc/doc/md.texi')
| -rw-r--r-- | gcc/doc/md.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index c96fd56..66ca3e9 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -2483,6 +2483,10 @@ to store doubleword values. A register suitable for use in an indirect jump. This will always be @code{$25} for @option{-mabicalls}. +@item v +Register @code{$3}. Do not use this constraint in new code; +it is retained only for compatibility with glibc. + @item y Equivalent to @code{r}; retained for backwards compatibility. |