diff options
Diffstat (limited to 'deps/v8/src/x64/ic-x64.cc')
| -rw-r--r-- | deps/v8/src/x64/ic-x64.cc | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/deps/v8/src/x64/ic-x64.cc b/deps/v8/src/x64/ic-x64.cc index 641e243300..efa07a80b5 100644 --- a/deps/v8/src/x64/ic-x64.cc +++ b/deps/v8/src/x64/ic-x64.cc @@ -1729,7 +1729,7 @@ Condition CompareIC::ComputeCondition(Token::Value op) { } -bool CompareIC::HasInlinedSmiCode(Address address) { +static bool HasInlinedSmiCode(Address address) { // The address of the instruction following the call. Address test_instruction_address = address + Assembler::kCallTargetAddressOffset; @@ -1740,6 +1740,39 @@ bool CompareIC::HasInlinedSmiCode(Address address) { } +void CompareIC::UpdateCaches(Handle<Object> x, Handle<Object> y) { + HandleScope scope; + Handle<Code> rewritten; + State previous_state = GetState(); + + State state = TargetState(previous_state, HasInlinedSmiCode(address()), x, y); + if (state == GENERIC) { + CompareStub stub(GetCondition(), strict(), NO_COMPARE_FLAGS); + rewritten = stub.GetCode(); + } else { + ICCompareStub stub(op_, state); + if (state == KNOWN_OBJECTS) { + stub.set_known_map(Handle<Map>(Handle<JSObject>::cast(x)->map())); + } + rewritten = stub.GetCode(); + } + set_target(*rewritten); + +#ifdef DEBUG + if (FLAG_trace_ic) { + PrintF("[CompareIC (%s->%s)#%s]\n", + GetStateName(previous_state), + GetStateName(state), + Token::Name(op_)); + } +#endif + + // Activate inlined smi code. + if (previous_state == UNINITIALIZED) { + PatchInlinedSmiCode(address(), ENABLE_INLINED_SMI_CHECK); + } +} + void PatchInlinedSmiCode(Address address, InlinedSmiCheck check) { // The address of the instruction following the call. Address test_instruction_address = |