Revert "Revert "Don't use the compiler driver for method resolution.""
This reverts commit c88ef3a10c474045a3476a02ae75d07ddd3230b7.
Change-Id: I0ed88a48b313a8d28bc39fae40631123aadb13ef
diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index 76bf951..ac6b5e8 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -5973,12 +5973,16 @@
Register temp = temp_location.AsRegister<Register>();
uint32_t method_offset = mirror::Class::EmbeddedVTableEntryOffset(
invoke->GetVTableIndex(), kArmPointerSize).Uint32Value();
- LocationSummary* locations = invoke->GetLocations();
- Location receiver = locations->InAt(0);
+
+ // Use the calling convention instead of the location of the receiver, as
+ // intrinsics may have put the receiver in a different register. In the intrinsics
+ // slow path, the arguments have been moved to the right place, so here we are
+ // guaranteed that the receiver is the first register of the calling convention.
+ InvokeDexCallingConvention calling_convention;
+ Register receiver = calling_convention.GetRegisterAt(0);
uint32_t class_offset = mirror::Object::ClassOffset().Int32Value();
- DCHECK(receiver.IsRegister());
// /* HeapReference<Class> */ temp = receiver->klass_
- __ LoadFromOffset(kLoadWord, temp, receiver.AsRegister<Register>(), class_offset);
+ __ LoadFromOffset(kLoadWord, temp, receiver, class_offset);
MaybeRecordImplicitNullCheck(invoke);
// Instead of simply (possibly) unpoisoning `temp` here, we should
// emit a read barrier for the previous class reference load.