Remove vec_append_glue from the compiler.

Author: msullivan

src/comp/back/abi.rs

@@ -88,8 +88,8 @@ fn bzero_glue_name() -> str {
     ret "rust_bzero_glue";
 }
 
-fn vec_append_glue_name() -> str {
-    ret "rust_vec_append_glue";
+fn yield_glue_name() -> str {
+    ret "rust_yield_glue";
 }
 
 fn no_op_type_glue_name() -> str {

src/comp/middle/trans.rs

@@ -85,8 +85,7 @@ state obj namegen(mutable int i) {
 
 type derived_tydesc_info = rec(ValueRef lltydesc, bool escapes);
 
-type glue_fns = rec(ValueRef no_op_type_glue,
-                    ValueRef vec_append_glue);
+type glue_fns = rec(ValueRef no_op_type_glue);
 
 type tydesc_info = rec(ty::t ty,
                        ValueRef tydesc,
@@ -8724,39 +8723,6 @@ fn make_no_op_type_glue(ValueRef fun) {
     new_builder(llbb).RetVoid();
 }
 
-fn make_vec_append_glue(ModuleRef llmod, type_names tn) -> ValueRef {
-    /*
-     * Args to vec_append_glue:
-     *
-     *   0. (Implicit) task ptr
-     *
-     *   1. Pointer to the tydesc of the vec, so that we can tell if it's gc
-     *      mem, and have a tydesc to pass to malloc if we're allocating anew.
-     *
-     *   2. Pointer to the tydesc of the vec's stored element type, so that
-     *      elements can be copied to a newly alloc'ed vec if one must be
-     *      created.
-     *
-     *   3. Dst vec ptr (i.e. ptr to ptr to rust_vec).
-     *
-     *   4. Src vec (i.e. ptr to rust_vec).
-     *
-     *   5. Flag indicating whether to skip trailing null on dst.
-     *
-     */
-
-    auto ty = T_fn([T_taskptr(tn),
-                       T_ptr(T_tydesc(tn)),
-                       T_ptr(T_tydesc(tn)),
-                       T_ptr(T_opaque_vec_ptr()),
-                       T_opaque_vec_ptr(), T_bool()],
-                   T_void());
-
-    auto llfn = decl_fastcall_fn(llmod, abi::vec_append_glue_name(), ty);
-    ret llfn;
-}
-
-
 fn vec_fill(&@block_ctxt bcx, ValueRef v) -> ValueRef {
     ret bcx.build.Load(bcx.build.GEP(v, [C_int(0),
                                             C_int(abi::vec_elt_fill)]));
@@ -8769,8 +8735,7 @@ fn vec_p0(&@block_ctxt bcx, ValueRef v) -> ValueRef {
 }
 
 fn make_glues(ModuleRef llmod, &type_names tn) -> @glue_fns {
-    ret @rec(no_op_type_glue = decl_no_op_type_glue(llmod, tn),
-             vec_append_glue = make_vec_append_glue(llmod, tn));
+    ret @rec(no_op_type_glue = decl_no_op_type_glue(llmod, tn));
 }
 
 fn make_common_glue(&session::session sess, &str output) {