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| author | Aldy Hernandez <aldyh@redhat.com> | 2003-03-05 22:37:52 +0000 |
|---|---|---|
| committer | Aldy Hernandez <aldyh@gcc.gnu.org> | 2003-03-05 22:37:52 +0000 |
| commit | 967143957e1b219647022c9b01530af954ae54f1 (patch) | |
| tree | 374e685d8676bc7828b9b030e68b5e0b0435ab14 /gcc/hooks.c | |
| parent | dd6eaaed371ccc9da18d960d4a020009f055adcf (diff) | |
| download | gcc-967143957e1b219647022c9b01530af954ae54f1.zip gcc-967143957e1b219647022c9b01530af954ae54f1.tar.gz gcc-967143957e1b219647022c9b01530af954ae54f1.tar.bz2 | |
tm.texi: Document TARGET_DWARF_REGISTER_SPAN.
2003-03-05 Aldy Hernandez <aldyh@redhat.com>
* doc/tm.texi: Document TARGET_DWARF_REGISTER_SPAN.
* config/rs6000/rs6000.c (rs6000_dwarf_register_span): New.
* hooks.c (hook_rtx_rtx_null): New.
* hooks.h (hook_rtx_rtx_null): Protoize.
* target-def.h (TARGET_DWARF_REGISTER_SPAN): New macro.
(TARGET_INITIALIZER): Add TARGET_DWARF_REGISTER_SPAN.
* target.h (struct gcc_target): Add dwarf_register_span.
* dwarf2out.c (multiple_reg_loc_descriptor): New.
(one_reg_loc_descriptor): New.
(reg_loc_descriptor): Add support for values that span more than
one register.
From-SVN: r63870
Diffstat (limited to 'gcc/hooks.c')
| -rw-r--r-- | gcc/hooks.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/hooks.c b/gcc/hooks.c index 8926638..1ec6725 100644 --- a/gcc/hooks.c +++ b/gcc/hooks.c @@ -157,3 +157,10 @@ hook_rtx_rtx_identity (x) return x; } +/* Generic hook that takes an rtx and returns NULL_RTX. */ +rtx +hook_rtx_rtx_null (x) + rtx x ATTRIBUTE_UNUSED; +{ + return 0; +} |