diff options
Diffstat (limited to 'gcc/tree-ssa.c')
| -rw-r--r-- | gcc/tree-ssa.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/gcc/tree-ssa.c b/gcc/tree-ssa.c index 8f34ce2..2e4bcdb 100644 --- a/gcc/tree-ssa.c +++ b/gcc/tree-ssa.c @@ -745,6 +745,24 @@ int_tree_map_hash (const void *item) return ((const struct int_tree_map *)item)->uid; } +/* Return true if the uid in both int tree maps are equal. */ + +static int +var_ann_eq (const void *va, const void *vb) +{ + const struct static_var_ann_d *a = (const struct static_var_ann_d *) va; + tree b = (tree) vb; + return (a->uid == DECL_UID (b)); +} + +/* Hash a UID in a int_tree_map. */ + +static unsigned int +var_ann_hash (const void *item) +{ + return ((const struct static_var_ann_d *)item)->uid; +} + /* Initialize global DFA and SSA structures. */ @@ -756,6 +774,8 @@ init_tree_ssa (void) int_tree_map_eq, NULL); cfun->gimple_df->default_defs = htab_create_ggc (20, int_tree_map_hash, int_tree_map_eq, NULL); + cfun->gimple_df->var_anns = htab_create_ggc (20, var_ann_hash, + var_ann_eq, NULL); cfun->gimple_df->call_clobbered_vars = BITMAP_GGC_ALLOC (); cfun->gimple_df->addressable_vars = BITMAP_GGC_ALLOC (); init_alias_heapvars (); @@ -805,7 +825,8 @@ delete_tree_ssa (void) /* Remove annotations from every referenced variable. */ FOR_EACH_REFERENCED_VAR (var, rvi) { - ggc_free (var->base.ann); + if (var->base.ann) + ggc_free (var->base.ann); var->base.ann = NULL; } htab_delete (gimple_referenced_vars (cfun)); @@ -817,6 +838,9 @@ delete_tree_ssa (void) cfun->gimple_df->global_var = NULL_TREE; htab_delete (cfun->gimple_df->default_defs); + cfun->gimple_df->default_defs = NULL; + htab_delete (cfun->gimple_df->var_anns); + cfun->gimple_df->var_anns = NULL; cfun->gimple_df->call_clobbered_vars = NULL; cfun->gimple_df->addressable_vars = NULL; cfun->gimple_df->modified_noreturn_calls = NULL; @@ -824,6 +848,7 @@ delete_tree_ssa (void) delete_alias_heapvars (); gcc_assert (!need_ssa_update_p ()); + cfun->gimple_df = NULL; } |