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| author | Kaveh R. Ghazi <ghazi@caip.rutgers.edu> | 1999-01-04 07:48:37 +0000 |
|---|---|---|
| committer | Kaveh Ghazi <ghazi@gcc.gnu.org> | 1999-01-04 07:48:37 +0000 |
| commit | 736b02fdfa3d7c93a3693e2fa41acf6d3d65df8c (patch) | |
| tree | e6dcbf0a389b511b9751f2e3fbcbf9af76269446 /gcc/genrecog.c | |
| parent | fbc7f4a22d02ba59c589d13a50a7866d333e5e22 (diff) | |
| download | gcc-736b02fdfa3d7c93a3693e2fa41acf6d3d65df8c.zip gcc-736b02fdfa3d7c93a3693e2fa41acf6d3d65df8c.tar.gz gcc-736b02fdfa3d7c93a3693e2fa41acf6d3d65df8c.tar.bz2 | |
c-common.c (decl_attributes): Allow applying attribute `unused' on a LABEL_DECL.
* c-common.c (decl_attributes): Allow applying attribute `unused'
on a LABEL_DECL.
* c-parse.in (label): Parse attributes after a label, and call
`decl_attributes' to handle them.
* gansidecl.h (ATTRIBUTE_UNUSED_LABEL): Define.
* genrecog.c (OUTPUT_LABEL, write_tree_1, write_tree): When
generating labels, mark them with ATTRIBUTE_UNUSED_LABEL.
* invoke.texi: Note that labels can be marked `unused'.
From-SVN: r24478
Diffstat (limited to 'gcc/genrecog.c')
| -rw-r--r-- | gcc/genrecog.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/gcc/genrecog.c b/gcc/genrecog.c index 9fca92fb..285542d 100644 --- a/gcc/genrecog.c +++ b/gcc/genrecog.c @@ -51,6 +51,9 @@ Boston, MA 02111-1307, USA. */ #include "rtl.h" #include "obstack.h" +#define OUTPUT_LABEL(INDENT_STRING, LABEL_NUMBER) \ + printf("%sL%d: ATTRIBUTE_UNUSED_LABEL\n", (INDENT_STRING), (LABEL_NUMBER)) + static struct obstack obstack; struct obstack *rtl_obstack = &obstack; @@ -1103,7 +1106,7 @@ write_tree_1 (tree, prevpos, afterward, type) printf ("\n"); if (tree && tree->subroutine_number == 0) { - printf (" L%d:\n", tree->number); + OUTPUT_LABEL (" ", tree->number); tree->label_needed = 0; } @@ -1239,7 +1242,7 @@ write_tree_1 (tree, prevpos, afterward, type) if (p->label_needed && (p->retest_mode || p->retest_code)) { - printf ("%sL%d:\n", indents[indent - 2], p->number); + OUTPUT_LABEL (indents[indent - 2], p->number); p->label_needed = 0; } @@ -1330,7 +1333,7 @@ write_tree_1 (tree, prevpos, afterward, type) /* Now that most mode and code tests have been done, we can write out a label for an inner node, if we haven't already. */ if (p->label_needed) - printf ("%sL%d:\n", indents[indent - 2], p->number); + OUTPUT_LABEL (indents[indent - 2], p->number); inner_indent = indent; @@ -1563,7 +1566,7 @@ write_tree (tree, prevpos, afterward, initial, type) if (! initial && tree->subroutine_number > 0) { - printf (" L%d:\n", tree->number); + OUTPUT_LABEL (" ", tree->number); if (afterward) { |