diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/c-family/c-common.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c index 436df45..90e8ec8 100644 --- a/gcc/c-family/c-common.c +++ b/gcc/c-family/c-common.c @@ -8213,8 +8213,16 @@ release_tree_vector (vec<tree, va_gc> *vec) { if (vec != NULL) { - vec->truncate (0); - vec_safe_push (tree_vector_cache, vec); + if (vec->allocated () >= 16) + /* Don't cache vecs that have expanded more than once. On a p64 + target, vecs double in alloc size with each power of 2 elements, e.g + at 16 elements the alloc increases from 128 to 256 bytes. */ + vec_free (vec); + else + { + vec->truncate (0); + vec_safe_push (tree_vector_cache, vec); + } } } |