commit c97946ca7e99eeb53388d3d4d4577705f5537671
author Alex Light <allight@google.com> Fri Jun 08 09:22:55 2018 -0700
committer Alex Light <allight@google.com> Wed Jun 13 10:32:17 2018 -0700
tree f24e0ab43c61546f23e4c3f06723b7ed34cec904
parent 6cae5ea222ba256b0ade1e18e37a0f49e952c57c

Allow jumping back to interpreter in instrumentation entrypoint.

We were incorrectly asserting that all non-deoptimized methods had
valid (and findable) compiled code available. With the JIT this is no
longer true.

NB Several additional patches are required for the instrumentation
trampolines to actually work correctly in all instances.

Test: ./test.py --host
Test: ./test/testrunner/testrunner.py --host --runtime-option=-Xplugin:libtracefast-trampolined.so
Change-Id: I069957a63dc36abaadd24063099c0d9e279f1884

runtime/entrypoints/quick/quick_trampoline_entrypoints.cc

diff --git a/runtime/entrypoints/quick/quick_trampoline_entrypoints.cc b/runtime/entrypoints/quick/quick_trampoline_entrypoints.cc
index dc89c276..3ccfa55 100644
--- a/runtime/entrypoints/quick/quick_trampoline_entrypoints.cc
+++ b/runtime/entrypoints/quick/quick_trampoline_entrypoints.cc
@@ -1109,7 +1109,6 @@
     result = GetQuickToInterpreterBridge();
   } else {
     result = instrumentation->GetQuickCodeFor(method, kRuntimePointerSize);
-    DCHECK(!Runtime::Current()->GetClassLinker()->IsQuickToInterpreterBridge(result));
   }
 
   bool interpreter_entry = (result == GetQuickToInterpreterBridge());