Integrate the Irregexp Regular Expression Engine.

runtime/vm/intrinsifier.cc

Index: runtime/vm/intrinsifier.cc
diff --git a/runtime/vm/intrinsifier.cc b/runtime/vm/intrinsifier.cc
index c195e300e1d605c1d91a1d1d2e863427ec40d9f1..90f2b400dcad4b2ab08d14c95f17c8edef587eef 100644
--- a/runtime/vm/intrinsifier.cc
+++ b/runtime/vm/intrinsifier.cc
@@ -69,6 +69,9 @@ void Intrinsifier::InitializeState() {
   lib = Library::CoreLibrary();
   ASSERT(!lib.IsNull());
   CORE_LIB_INTRINSIC_LIST(SETUP_FUNCTION);
+  if (FLAG_use_jscre) {
+    CORE_REGEXP_LIB_INTRINSIC_LIST(SETUP_FUNCTION);

[Ivan Posva, 2014/11/14 08:42:49]

Did you add an intrinsic for JSCRE?

[zerny-google, 2014/11/14 12:18:57]

Yes. So I missed this because it is not compatible with snapshotting. Slava
explained that the snapshot state can cause the the functions to-be/not-to-be
intrinsified regardless of the flag, so this flag can lead to an inconsistent
state. Instead I've removed the conditional and inserted early escapes in the
intrinsic bodies.

+  }
   CORE_INTEGER_LIB_INTRINSIC_LIST(SETUP_FUNCTION);
   GRAPH_CORE_INTRINSICS_LIST(SETUP_FUNCTION);