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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-09-15 14:37:28 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-09-15 14:37:28 +0000 |
| commit | 870118b7f139a2477cd16de9d8539946959c5633 (patch) | |
| tree | 0f38ba28fa9b8476ec879058ccc6a40b6b2d5bc7 /gcc/doc | |
| parent | bb149ca2e912038dce733f95ab1c24ff0d1af280 (diff) | |
| download | gcc-870118b7f139a2477cd16de9d8539946959c5633.zip gcc-870118b7f139a2477cd16de9d8539946959c5633.tar.gz gcc-870118b7f139a2477cd16de9d8539946959c5633.tar.bz2 | |
Turn FUNCTION_ARG_OFFSET into a hook
2017-09-13 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* target.def (function_arg_offset): New hook.
* targhooks.h (default_function_arg_offset): Declare.
* targhooks.c (default_function_arg_offset): New function.
* function.c (locate_and_pad_parm): Use
targetm.calls.function_arg_offset instead of FUNCTION_ARG_OFFSET.
* doc/tm.texi.in (FUNCTION_ARG_OFFSET): Replace with...
(TARGET_FUNCTION_ARG_OFFSET): ...this.
* doc/tm.texi: Regenerate.
* config/spu/spu.h (FUNCTION_ARG_OFFSET): Delete.
* config/spu/spu.c (spu_function_arg_offset): New function.
(TARGET_FUNCTION_ARG_OFFSET): Redefine.
* system.h (FUNCTION_ARG_OFFSET): Poison.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r252821
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 14 | ||||
| -rw-r--r-- | gcc/doc/tm.texi.in | 8 |
2 files changed, 8 insertions, 14 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 6277e88..ae65e4f 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -4079,13 +4079,13 @@ on the stack. The compiler knows how to track the amount of stack space used for arguments without any special help. @end deftypefn -@defmac FUNCTION_ARG_OFFSET (@var{mode}, @var{type}) -If defined, a C expression that is the number of bytes to add to the -offset of the argument passed in memory. This is needed for the SPU, -which passes @code{char} and @code{short} arguments in the preferred -slot that is in the middle of the quad word instead of starting at the -top. -@end defmac +@deftypefn {Target Hook} HOST_WIDE_INT TARGET_FUNCTION_ARG_OFFSET (machine_mode @var{mode}, const_tree @var{type}) +This hook returns the number of bytes to add to the offset of an +argument of type @var{type} and mode @var{mode} when passed in memory. +This is needed for the SPU, which passes @code{char} and @code{short} +arguments in the preferred slot that is in the middle of the quad word +instead of starting at the top. The default implementation returns 0. +@end deftypefn @deftypefn {Target Hook} pad_direction TARGET_FUNCTION_ARG_PADDING (machine_mode @var{mode}, const_tree @var{type}) This hook determines whether, and in which direction, to pad out diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in index c66f8ce..733466d 100644 --- a/gcc/doc/tm.texi.in +++ b/gcc/doc/tm.texi.in @@ -3281,13 +3281,7 @@ argument @var{libname} exists for symmetry with @hook TARGET_FUNCTION_ARG_ADVANCE -@defmac FUNCTION_ARG_OFFSET (@var{mode}, @var{type}) -If defined, a C expression that is the number of bytes to add to the -offset of the argument passed in memory. This is needed for the SPU, -which passes @code{char} and @code{short} arguments in the preferred -slot that is in the middle of the quad word instead of starting at the -top. -@end defmac +@hook TARGET_FUNCTION_ARG_OFFSET @hook TARGET_FUNCTION_ARG_PADDING |