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| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/doc/tm.texi | 9 |
2 files changed, 14 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f80b535..1f04f38 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2004-03-12 Eric Botcazou <ebotcazou@libertysurf.fr> + + * doc/tm.texi (registers) <Values in Registers>: Add + entry for REGMODE_NATURAL_SIZE. + 2004-03-12 Richard Henderson <rth@redhat.com> PR target/14547 diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 4b65d90..fe293e3 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 |