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| author | dje <dje@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-07-02 11:53:24 +0000 |
|---|---|---|
| committer | dje <dje@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-07-02 11:53:24 +0000 |
| commit | 3469a3e258443d486dd4b8c48e701c1097fd08f7 (patch) | |
| tree | f6d56239789abb75a54e7c041d4876cd372838ec /gcc/tm.texi | |
| parent | 8e97a0301d2803d6ceaeb7bb0ac8a338233e1551 (diff) | |
| download | gcc-3469a3e258443d486dd4b8c48e701c1097fd08f7.tar.gz | |
* expr.h (STACK_SIZE_MODE): New macro.
* explow.c (allocate_dynamic_stack_space): Use it for
mode of allocate_stack pattern increment operand.
* tm.texi (STACK_SAVEAREA_MODE, STACK_SIZE_MODE): Document.
* md.texi (stack_save_block, ...): Reflect use of macro.
* rs6000.h (PROMOTE_MODE): Always promote to word_mode.
(PROMOTE_FUNCTION_ARGS): Define.
(PROMOTE_FUNCTION_RETURN): Define.
(FUNCTION_VALUE): Promote to word_mode if smaller.
Convert to gen_rtx_FOO.
* rs6000.md (call_indirect): Store doubleword in 64-bit mode.
Convert to gen_rtx_FOO.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@20893 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tm.texi')
| -rw-r--r-- | gcc/tm.texi | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/gcc/tm.texi b/gcc/tm.texi index 78cc6ce496c..cfff3a0e63c 100644 --- a/gcc/tm.texi +++ b/gcc/tm.texi @@ -982,16 +982,27 @@ appropriate sizes. If this macro is undefined, @code{GET_MODE_BITSIZE @findex STACK_SAVEAREA_MODE @item STACK_SAVEAREA_MODE (@var{save_level}) If defined, an expression of type @code{enum machine_mode} that -specifies the mode of a @code{save_stack_@var{level}} named pattern -(@pxref{Standard Names}). @var{save_level} is one of @code{SAVE_BLOCK}, -@code{SAVE_FUNCTION}, or @code{SAVE_NONLOCAL} and selects which of the -three named patterns is having its mode specified. +specifies the mode of the save area operand of a +@code{save_stack_@var{level}} named pattern (@pxref{Standard Names}). +@var{save_level} is one of @code{SAVE_BLOCK}, @code{SAVE_FUNCTION}, or +@code{SAVE_NONLOCAL} and selects which of the three named patterns is +having its mode specified. You need not define this macro if it always returns @code{Pmode}. You would most commonly define this macro if the @code{save_stack_@var{level}} patterns need to support both a 32- and a 64-bit mode. +@findex STACK_SIZE_MODE +@item STACK_SIZE_MODE +If defined, an expression of type @code{enum machine_mode} that +specifies the mode of the size increment operand of an +@code{allocate_stack} named pattern (@pxref{Standard Names}). + +You need not define this macro if it always returns @code{word_mode}. +You would most commonly define this macro if the @code{allocate_stack} +pattern needs to support both a 32- and a 64-bit mode. + @findex CHECK_FLOAT_VALUE @item CHECK_FLOAT_VALUE (@var{mode}, @var{value}, @var{overflow}) A C statement to validate the value @var{value} (of type |