diff options
Diffstat (limited to 'gcc/tree-flow.h')
| -rw-r--r-- | gcc/tree-flow.h | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/gcc/tree-flow.h b/gcc/tree-flow.h index 286c60bce20..476f02e8a2e 100644 --- a/gcc/tree-flow.h +++ b/gcc/tree-flow.h @@ -138,8 +138,8 @@ struct mem_ref_stats_d GTY(()) fields should have gimple_set accessor. */ struct gimple_df GTY(()) { - /* Array of all variables referenced in the function. */ - htab_t GTY((param_is (union tree_node))) referenced_vars; + /* Bitmap of all variables referenced in the function. */ + bitmap referenced_vars; /* A list of all the noreturn calls passed to modify_stmt. cleanup_control_flow uses it to detect cases where a mid-block @@ -569,25 +569,29 @@ struct int_tree_map GTY(()) extern unsigned int int_tree_map_hash (const void *); extern int int_tree_map_eq (const void *, const void *); -extern unsigned int uid_decl_map_hash (const void *); -extern int uid_decl_map_eq (const void *, const void *); - typedef struct { - htab_iterator hti; + bitmap_iterator bi; + unsigned int i; } referenced_var_iterator; - /* This macro loops over all the referenced vars, one at a time, putting the - current var in VAR. Note: You are not allowed to add referenced variables - to the hashtable while using this macro. Doing so may cause it to behave - erratically. */ + current var in VAR. Note: It is undefined whether referenced variables + you add or remove during the iteration show up or not. */ #define FOR_EACH_REFERENCED_VAR(VAR, ITER) \ - for ((VAR) = first_referenced_var (&(ITER)); \ - !end_referenced_vars_p (&(ITER)); \ - (VAR) = next_referenced_var (&(ITER))) + for (bmp_iter_set_init (&(ITER).bi, gimple_referenced_vars (cfun), 0, &(ITER).i); \ + referenced_var_iterator_set (&(ITER), &(VAR)); \ + bmp_iter_next (&(ITER).bi, &(ITER).i)) + +/* Iterate over all variables whose UID is set in the bitmap BM, putting the + current var in VAR. Note: It is undefined whether variables you add or + remove during the iteration show up or not. */ +#define FOR_EACH_REFERENCED_VAR_IN_BITMAP(BM, VAR, ITER) \ + for (bmp_iter_set_init (&(ITER).bi, (BM), 0, &(ITER).i); \ + referenced_var_iterator_set (&(ITER), &(VAR)); \ + bmp_iter_next (&(ITER).bi, &(ITER).i)) typedef struct { @@ -609,7 +613,7 @@ typedef struct extern tree referenced_var_lookup (unsigned int); extern bool referenced_var_check_and_insert (tree); -#define num_referenced_vars htab_elements (gimple_referenced_vars (cfun)) +#define num_referenced_vars bitmap_count_bits (gimple_referenced_vars (cfun)) #define referenced_var(i) referenced_var_lookup (i) #define num_ssa_names (VEC_length (tree, cfun->gimple_df->ssa_names)) |