diff options
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 69f60c14335..8ca2a9a4dc5 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -2402,6 +2402,13 @@ the selection of a base register in a mode dependent manner. If @code{BASE_REG_CLASS}. @end defmac +@defmac MODE_BASE_REG_REG_CLASS (@var{mode}) +A C expression whose value is the register class to which a valid +base register must belong in order to be used in a base plus index +register address. You should define this macro if base plus index +addresses have different requirements than other base register uses. +@end defmac + @defmac INDEX_REG_CLASS A macro whose definition is the name of the class to which a valid index register must belong. An index register is one used in an @@ -2455,6 +2462,15 @@ you define this macro, the compiler will use it instead of @code{REGNO_OK_FOR_BASE_P}. @end defmac +@defmac REGNO_MODE_OK_FOR_REG_BASE_P (@var{num}, @var{mode}) +A C expression which is nonzero if register number @var{num} is suitable for +use as a base register in base plus index operand addresses, accessing +memory in mode @var{mode}. It may be either a suitable hard register or a +pseudo register that has been allocated such a hard register. You should +define this macro if base plus index addresses have different requirements +than other base register uses. +@end defmac + @defmac REGNO_OK_FOR_INDEX_P (@var{num}) A C expression which is nonzero if register number @var{num} is suitable for use as an index register in operand addresses. It may be @@ -5003,6 +5019,15 @@ you define this macro, the compiler will use it instead of @code{REG_OK_FOR_BASE_P}. @end defmac +@defmac REG_MODE_OK_FOR_REG_BASE_P (@var{x}, @var{mode}) +A C expression which is nonzero if @var{x} (assumed to be a @code{reg} RTX) +is suitable for use as a base register in base plus index operand addresses, +accessing memory in mode @var{mode}. It may be either a suitable hard +register or a pseudo register that has been allocated such a hard register. +You should define this macro if base plus index addresses have different +requirements than other base register uses. +@end defmac + @defmac REG_OK_FOR_INDEX_P (@var{x}) A C expression that is nonzero if @var{x} (assumed to be a @code{reg} RTX) is valid for use as an index register. |
