x86_64: Add JIT support for LoadMethodType.

In aosp/2876518 JIT code made runtime calls.

Bug: 297147201
Test: ./art/test/testrunner/testrunner.py --host --64 --jit -b
Test: ./art/test/testrunner/testrunner.py --host --64 -b
Test: ./art/test.py --host -b
Change-Id: Ifdfd3ace9419b34f8079c9ec4b1b2de31cb50ef7

1 files changed, 11 insertions, 0 deletions

diff --git a/compiler/optimizing/code_generation_data.cc b/compiler/optimizing/code_generation_data.cc
index 7b23d46dc5..afc4f62f0f 100644
--- a/compiler/optimizing/code_generation_data.cc
+++ b/compiler/optimizing/code_generation_data.cc
@@ -20,6 +20,7 @@
 #include "intern_table.h"
 #include "mirror/object-inl.h"
 #include "runtime.h"
+#include "well_known_classes-inl.h"
 
 namespace art HIDDEN {
 
@@ -52,6 +53,16 @@ void CodeGenerationData::EmitJitRoots(
     entry.second = index;
     ++index;
   }
+  for (auto& entry : jit_method_type_roots_) {
+    // Update the `roots` with the MethodType, and replace the address temporarily
+    // stored to the index in the table.
+    uint64_t address = entry.second;
+    roots->emplace_back(reinterpret_cast<StackReference<mirror::Object>*>(address));
+    DCHECK(roots->back() != nullptr);
+    DCHECK(roots->back()->InstanceOf(WellKnownClasses::java_lang_invoke_MethodType.Get()));
+    entry.second = index;
+    ++index;
+  }
 }
 
 }  // namespace art