diff.diff

2018.05.43 zoffix@VirtualBox~/R/rakudo (master)$ gd
diff --git a/src/core/stubs.pm6 b/src/core/stubs.pm6
index 7388a84a7..b2b3d6022 100644
--- a/src/core/stubs.pm6
+++ b/src/core/stubs.pm6
@@ -30,32 +30,35 @@ my class MixHash { ... }
 my class Lock is repr('ReentrantMutex') { ... }
 my class Lock::Async { ... }
 
-sub DYNAMIC(\name) is raw {
-    nqp::ifnull(
-      nqp::getlexdyn(name),
-      nqp::stmts(
-        nqp::unless(
-          nqp::isnull(my $prom := nqp::getlexdyn('$*PROMISE')),
-          (my Mu $x := nqp::getlexreldyn(
-            nqp::getattr($prom,Promise,'$!dynamic_context'),name)
-          )
-        ),
-        nqp::ifnull(
-          $x,
-          nqp::stmts(
-            (my str $pkgname = nqp::replace(name,1,1,'')),
+sub DYNAMIC-SLOW-PATH(\name) is raw {
+    nqp::stmts(
+      nqp::unless(
+        nqp::isnull(my $prom := nqp::getlexdyn('$*PROMISE')),
+        (my Mu $x := nqp::getlexreldyn(
+          nqp::getattr($prom,Promise,'$!dynamic_context'),name)
+        )
+      ),
+      nqp::ifnull(
+        $x,
+        nqp::stmts(
+          (my str $pkgname = nqp::replace(name,1,1,'')),
+          nqp::ifnull(
+            nqp::atkey(GLOBAL.WHO,$pkgname),
             nqp::ifnull(
-              nqp::atkey(GLOBAL.WHO,$pkgname),
-              nqp::ifnull(
-                nqp::atkey(PROCESS.WHO,$pkgname),
-                Rakudo::Internals.INITIALIZE-DYNAMIC(name)
-              )
+              nqp::atkey(PROCESS.WHO,$pkgname),
+              Rakudo::Internals.INITIALIZE-DYNAMIC(name)
             )
           )
         )
       )
     )
 }
+sub DYNAMIC(\name) is raw {
+    # keeping this sub small enough to be inlined by MoarVM's spesh
+    nqp::ifnull(
+      nqp::getlexdyn(name),
+      DYNAMIC-SLOW-PATH name)
+}
 
 # Set up ClassHOW's auto-gen proto (nested scope so it won't
 # actually appear in the setting).
2018.05.43 zoffix@VirtualBox~/R/rakudo (master)$