diff options
Diffstat (limited to 'src/cmd/gc/walk.c')
| -rw-r--r-- | src/cmd/gc/walk.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/cmd/gc/walk.c b/src/cmd/gc/walk.c index 3c3a00cfd..62bbf9f5a 100644 --- a/src/cmd/gc/walk.c +++ b/src/cmd/gc/walk.c @@ -787,6 +787,14 @@ walkexpr(Node **np, NodeList **init) case OINDEX: walkexpr(&n->left, init); walkexpr(&n->right, init); + + // if range of type cannot exceed static array bound, + // disable bounds check + if(!isslice(n->left->type)) + if(n->right->type->width < 4) + if((1<<(8*n->right->type->width)) <= n->left->type->bound) + n->etype = 1; + goto ret; case OINDEXMAP: |