diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-ssa-live.c | 12 |
2 files changed, 18 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index db91515..a3e2696 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2005-06-30 Zdenek Dvorak <dvorakz@suse.cz> + + PR testsuite/21967 + * tree-ssa-live.c (mark_all_vars_used_1): Ignore variables in + TMR_ORIGINAL. + 2005-06-30 Bernd Schmidt <bernd.schmidt@analog.com> * config/bfin/bfin.md (addv2hi3, subv2hi3, sminv2hi3, smaxv2hi3, diff --git a/gcc/tree-ssa-live.c b/gcc/tree-ssa-live.c index cbd36f1..180916d 100644 --- a/gcc/tree-ssa-live.c +++ b/gcc/tree-ssa-live.c @@ -286,6 +286,7 @@ change_partition_var (var_map map, tree var, int part) map->partition_to_var[map->compact_to_partition[part]] = var; } +static inline void mark_all_vars_used (tree *); /* Helper function for mark_all_vars_used, called via walk_tree. */ @@ -295,6 +296,17 @@ mark_all_vars_used_1 (tree *tp, int *walk_subtrees, { tree t = *tp; + /* Ignore TREE_ORIGINAL for TARGET_MEM_REFS, as well as other + fields that do not contain vars. */ + if (TREE_CODE (t) == TARGET_MEM_REF) + { + mark_all_vars_used (&TMR_SYMBOL (t)); + mark_all_vars_used (&TMR_BASE (t)); + mark_all_vars_used (&TMR_INDEX (t)); + *walk_subtrees = 0; + return NULL; + } + /* Only need to mark VAR_DECLS; parameters and return results are not eliminated as unused. */ if (TREE_CODE (t) == VAR_DECL) |