code review 6351090: cmd/gc: Inline pointer sized T2I interface conversions

src/pkg/runtime/iface.c

 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 #include "runtime.h"
 #include "arch_GOARCH.h"
 #include "type.h"
 #include "typekind.h"
 #include "malloc.h"
 
@@ skipping 165 matching lines @@
 
         size = t->size;
         alg = t->alg;
 
         if(size <= sizeof(*src))
                 alg->copy(size, dst, src);
         else
                 alg->copy(size, dst, *src);
 }
 
+#pragma textflag 7
+void
+runtime·typ2Itab(Type *t, InterfaceType *inter, Itab **cache, Itab *ret)
+{
+        Itab *tab;
+
+        tab = itab(inter, t, 0);
+        runtime·atomicstorep(cache, tab);
+        ret = tab;
+        FLUSH(&ret);
+}
+
 // func convT2I(typ *byte, typ2 *byte, cache **byte, elem any) (ret any)
 #pragma textflag 7
 void
 runtime·convT2I(Type *t, InterfaceType *inter, Itab **cache, ...)
 {
         byte *elem;
         Iface *ret;
         Itab *tab;
         int32 wid;
 
@@ skipping 506 matching lines @@
         // type structure sits before the data pointer.
         t = (Type*)((Eface*)typ.data-1);
 
         size = n*t->size;
         if(t->kind&KindNoPointers)
                 ret = runtime·mallocgc(size, FlagNoPointers, 1, 1);
         else
                 ret = runtime·mal(size);
         FLUSH(&ret);
 }