diff options
Diffstat (limited to 'contrib/gcc/stmt.c')
| -rw-r--r-- | contrib/gcc/stmt.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/contrib/gcc/stmt.c b/contrib/gcc/stmt.c index 671e98a..279691b 100644 --- a/contrib/gcc/stmt.c +++ b/contrib/gcc/stmt.c @@ -136,9 +136,19 @@ label_rtx (tree label) if (!DECL_RTL_SET_P (label)) { rtx r = gen_label_rtx (); +/* APPLE LOCAL begin for-fsf-4_4 3274130 5295549 */ \ + unsigned align = DECL_ALIGN_UNIT (label); + int align_log2 = exact_log2 (align); + +/* APPLE LOCAL end for-fsf-4_4 3274130 5295549 */ \ SET_DECL_RTL (label, r); if (FORCED_LABEL (label) || DECL_NONLOCAL (label)) LABEL_PRESERVE_P (r) = 1; +/* APPLE LOCAL begin for-fsf-4_4 3274130 5295549 */ \ + + if (align_log2 >= 0 && align_log2 <= 0xFF) + SET_LABEL_ALIGN (r, align_log2, align - 1); +/* APPLE LOCAL end for-fsf-4_4 3274130 5295549 */ \ } return DECL_RTL (label); @@ -194,11 +204,12 @@ expand_computed_goto (tree exp) /* Specify the location in the RTL code of a label LABEL, which is a LABEL_DECL tree node. - This is used for the kind of label that the user can jump to with a - goto statement, and for alternatives of a switch or case statement. - RTL labels generated for loops and conditionals don't go through here; - they are generated directly at the RTL level, by other functions below. + APPLE LOCAL begin for-fsf-4_4 3274130 5295549 + This is used for those labels created by the front-end that survive + through CFG generation, including all user labels. (Some labels + are removed by cleanup_dead_labels in tree-cfg.c.) + APPLE LOCAL end for-fsf-4_4 3274130 5295549 Note that this has nothing to do with defining label *names*. Languages vary in how they do that and what that even means. */ |
