diff options
Diffstat (limited to 'gcc/regclass.c')
| -rw-r--r-- | gcc/regclass.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/gcc/regclass.c b/gcc/regclass.c index 256d92b..40bdc72 100644 --- a/gcc/regclass.c +++ b/gcc/regclass.c @@ -1866,18 +1866,19 @@ allocate_reg_info (num_regs, new_p, renumber_p) size_t max_index = reg_data->max_index; reg_next = reg_data->next; - if (min_index <= regno_allocated) + if (min <= max_index) { size_t max = max_index; - if (max > regno_allocated) - max = regno_allocated; + size_t local_min = min - min_index; + if (min < min_index) + local_min = 0; if (!reg_data->used_p) /* page just allocated with calloc */ reg_data->used_p = 1; /* no need to zero */ else - bzero ((char *) ®_data->data, - sizeof (reg_info) * (max - min_index + 1)); + bzero ((char *) ®_data->data[local_min], + sizeof (reg_info) * (max - min_index - local_min + 1)); - for (i = min_index; i <= max; i++) + for (i = min_index+local_min; i <= max; i++) { VARRAY_REG (reg_n_info, i) = ®_data->data[i-min_index]; REG_BASIC_BLOCK (i) = REG_BLOCK_UNKNOWN; |