From ca0b6e3b4771a25bca1891e2f69efa4ebbeabdb7 Mon Sep 17 00:00:00 2001 From: Eric Botcazou Date: Fri, 12 Mar 2004 11:53:15 +0100 Subject: [PATCH] tm.texi (registers): Add entry for REGMODE_NATURAL_SIZE. * doc/tm.texi (registers) : Add entry for REGMODE_NATURAL_SIZE. From-SVN: r79377 --- gcc/ChangeLog | 5 +++++ gcc/doc/tm.texi | 9 +++++++++ 2 files changed, 14 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f80b5355b04..1f04f38d11b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2004-03-12 Eric Botcazou + + * doc/tm.texi (registers) : Add + entry for REGMODE_NATURAL_SIZE. + 2004-03-12 Richard Henderson PR target/14547 diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 4b65d900699..fe293e31eb2 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -2011,6 +2011,15 @@ definition of this macro is @end smallexample @end defmac +@defmac REGMODE_NATURAL_SIZE (@var{mode}) +Define this macro if the natural size of registers that hold values +of mode @var{mode} is not the word size. It is a C expression that +should give the natural size in bytes for the specified mode. It is +used by the register allocator to try to optimize its results. This +happens for example on SPARC 64-bit where the natural size of +floating-point registers is still 32-bit. +@end defmac + @defmac HARD_REGNO_MODE_OK (@var{regno}, @var{mode}) A C expression that is nonzero if it is permissible to store a value of mode @var{mode} in hard register number @var{regno} (or in several -- 2.30.2