diff options
Diffstat (limited to 'src/cmd/gc/typecheck.c')
| -rw-r--r-- | src/cmd/gc/typecheck.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/cmd/gc/typecheck.c b/src/cmd/gc/typecheck.c index 714c66268..f05d8022d 100644 --- a/src/cmd/gc/typecheck.c +++ b/src/cmd/gc/typecheck.c @@ -2891,7 +2891,8 @@ typecheckas(Node *n) case OSLICE3: case OSLICESTR: // For x = x[0:y], x can be updated in place, without touching pointer. - if(samesafeexpr(n->left, n->right->left) && (n->right->right->left == N || iszero(n->right->right->left))) + // TODO(rsc): Reenable once it is actually updated in place without touching the pointer. + if(0 && samesafeexpr(n->left, n->right->left) && (n->right->right->left == N || iszero(n->right->right->left))) n->right->reslice = 1; break; @@ -2899,7 +2900,8 @@ typecheckas(Node *n) // For x = append(x, ...), x can be updated in place when there is capacity, // without touching the pointer; otherwise the emitted code to growslice // can take care of updating the pointer, and only in that case. - if(n->right->list != nil && samesafeexpr(n->left, n->right->list->n)) + // TODO(rsc): Reenable once the emitted code does update the pointer. + if(0 && n->right->list != nil && samesafeexpr(n->left, n->right->list->n)) n->right->reslice = 1; break; } |