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-rw-r--r--src/cmd/gc/walk.c18
-rw-r--r--test/ddd.go20
2 files changed, 29 insertions, 9 deletions
diff --git a/src/cmd/gc/walk.c b/src/cmd/gc/walk.c
index a3368aa2d5..4588ac1c18 100644
--- a/src/cmd/gc/walk.c
+++ b/src/cmd/gc/walk.c
@@ -11,7 +11,7 @@ static Node* makenewvar(Type*, NodeList**, Node**);
static Node* ascompatee1(int, Node*, Node*, NodeList**);
static NodeList* ascompatee(int, NodeList*, NodeList*, NodeList**);
static NodeList* ascompatet(int, NodeList*, Type**, int, NodeList**);
-static NodeList* ascompatte(int, Type**, NodeList*, int, NodeList**);
+static NodeList* ascompatte(int, int, Type**, NodeList*, int, NodeList**);
static Node* convas(Node*, NodeList**);
static void heapmoves(void);
static NodeList* paramstoheap(Type **argin, int out);
@@ -513,7 +513,7 @@ walkstmt(Node **np)
n->list = reorder3(ll);
break;
}
- ll = ascompatte(n->op, getoutarg(curfn->type), n->list, 1, &n->ninit);
+ ll = ascompatte(n->op, 0, getoutarg(curfn->type), n->list, 1, &n->ninit);
n->list = ll;
break;
@@ -708,7 +708,7 @@ walkexpr(Node **np, NodeList **init)
goto ret;
walkexpr(&n->left, init);
walkexprlist(n->list, init);
- ll = ascompatte(n->op, getinarg(t), n->list, 0, init);
+ ll = ascompatte(n->op, n->isddd, getinarg(t), n->list, 0, init);
n->list = reorder1(ll);
goto ret;
@@ -718,7 +718,7 @@ walkexpr(Node **np, NodeList **init)
goto ret;
walkexpr(&n->left, init);
walkexprlist(n->list, init);
- ll = ascompatte(n->op, getinarg(t), n->list, 0, init);
+ ll = ascompatte(n->op, n->isddd, getinarg(t), n->list, 0, init);
n->list = reorder1(ll);
if(isselect(n)) {
// special prob with selectsend and selectrecv:
@@ -728,7 +728,7 @@ walkexpr(Node **np, NodeList **init)
Node *b;
b = nodbool(0);
typecheck(&b, Erv);
- lr = ascompatte(n->op, getoutarg(t), list1(b), 0, init);
+ lr = ascompatte(n->op, 0, getoutarg(t), list1(b), 0, init);
n->list = concat(n->list, lr);
}
goto ret;
@@ -739,8 +739,8 @@ walkexpr(Node **np, NodeList **init)
goto ret;
walkexpr(&n->left, init);
walkexprlist(n->list, init);
- ll = ascompatte(n->op, getthis(t), list1(n->left->left), 0, init);
- lr = ascompatte(n->op, getinarg(t), n->list, 0, init);
+ ll = ascompatte(n->op, 0, getthis(t), list1(n->left->left), 0, init);
+ lr = ascompatte(n->op, n->isddd, getinarg(t), n->list, 0, init);
ll = concat(ll, lr);
n->left->left = N;
ullmancalc(n->left);
@@ -1599,7 +1599,7 @@ dumpnodetypes(NodeList *l, char *what)
* func(expr-list)
*/
static NodeList*
-ascompatte(int op, Type **nl, NodeList *lr, int fp, NodeList **init)
+ascompatte(int op, int isddd, Type **nl, NodeList *lr, int fp, NodeList **init)
{
Type *l, *ll;
Node *r, *a;
@@ -1654,7 +1654,7 @@ loop:
// only if we are assigning a single ddd
// argument to a ddd parameter then it is
// passed thru unencapsulated
- if(r != N && lr->next == nil && r->isddd && eqtype(l->type, r->type)) {
+ if(r != N && lr->next == nil && isddd && eqtype(l->type, r->type)) {
a = nod(OAS, nodarg(l, fp), r);
a = convas(a, init);
nn = list(nn, a);
diff --git a/test/ddd.go b/test/ddd.go
index 92a3a318a3..b95d6e883f 100644
--- a/test/ddd.go
+++ b/test/ddd.go
@@ -30,10 +30,14 @@ func sumA(args []int) int {
return s
}
+func sumB(args []int) int { return sum(args...) }
+
func sum2(args ...int) int { return 2 * sum(args...) }
func sum3(args ...int) int { return 3 * sumA(args) }
+func sum4(args ...int) int { return 4 * sumB(args) }
+
func intersum(args ...interface{}) int {
s := 0
for _, v := range args {
@@ -119,6 +123,22 @@ func main() {
println("sum 9", x)
panic("fail")
}
+ if x := sum4(1, 2, 3); x != 4*6 {
+ println("sum 6", x)
+ panic("fail")
+ }
+ if x := sum4(); x != 4*0 {
+ println("sum 0", x)
+ panic("fail")
+ }
+ if x := sum4(10); x != 4*10 {
+ println("sum 10", x)
+ panic("fail")
+ }
+ if x := sum4(1, 8); x != 4*9 {
+ println("sum 9", x)
+ panic("fail")
+ }
if x := intersum(1, 2, 3); x != 6 {
println("intersum 6", x)
panic("fail")