diff options
Diffstat (limited to 'src/cmd/8g/cgen.c')
| -rw-r--r-- | src/cmd/8g/cgen.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/cmd/8g/cgen.c b/src/cmd/8g/cgen.c index 474d0713f..e37eb5295 100644 --- a/src/cmd/8g/cgen.c +++ b/src/cmd/8g/cgen.c @@ -83,6 +83,20 @@ cgen(Node *n, Node *res) return; } + // update addressability for string, slice + // can't do in walk because n->left->addable + // changes if n->left is an escaping local variable. + switch(n->op) { + case OLEN: + if(isslice(n->left->type) || istype(n->left->type, TSTRING)) + n->addable = n->left->addable; + break; + case OCAP: + if(isslice(n->left->type)) + n->addable = n->left->addable; + break; + } + // if both are addressable, move if(n->addable && res->addable) { gmove(n, res); |