Reland "Add clinit checks at entry for some boot image methods." am: ab3f8d27ae

Original change: https://android-review.googlesource.com/c/platform/art/+/2163021

Change-Id: I7bee900d100120dc6a7ef0a16621cfe51c9ff1a1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/compiler/optimizing/code_generator.h b/compiler/optimizing/code_generator.h
index 7b46e13a44..de247a98b9 100644
--- a/compiler/optimizing/code_generator.h
+++ b/compiler/optimizing/code_generator.h
@@ -37,6 +37,7 @@
 #include "optimizing_compiler_stats.h"
 #include "read_barrier_option.h"
 #include "stack.h"
+#include "subtype_check.h"
 #include "utils/assembler.h"
 #include "utils/label.h"
 
@@ -60,6 +61,14 @@ static int64_t constexpr kPrimLongMax = INT64_C(0x7fffffffffffffff);
 static const ReadBarrierOption gCompilerReadBarrierOption =
     gUseReadBarrier ? kWithReadBarrier : kWithoutReadBarrier;
 
+constexpr size_t status_lsb_position = SubtypeCheckBits::BitStructSizeOf();
+constexpr size_t status_byte_offset =
+    mirror::Class::StatusOffset().SizeValue() + (status_lsb_position / kBitsPerByte);
+constexpr uint32_t shifted_visibly_initialized_value =
+    enum_cast<uint32_t>(ClassStatus::kVisiblyInitialized) << (status_lsb_position % kBitsPerByte);
+constexpr uint32_t shifted_initializing_value =
+    enum_cast<uint32_t>(ClassStatus::kInitializing) << (status_lsb_position % kBitsPerByte);
+
 class Assembler;
 class CodeGenerator;
 class CompilerOptions;