archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-20 19:14:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8166188: G1 Needs pre barrier on dereference of weak JNI handles

Browse source 
Add low tag to jweaks and G1 barrier for jweak loads.

Co-authored-by: Martin Doerr <martin.doerr@sap.com>
Co-authored-by: Volker Simonis <volker.simonis@sap.com>
Reviewed-by: mgerdin, mdoerr, pliden, dlong, dcubed, coleenp, aph, tschatzl
This commit is contained in:
Kim Barrett 2017-02-15 22:19:13 -05:00
parent 6a5e6f2ae1
commit 28477cf493
37 changed files with 1061 additions and 429 deletions
Download patch file Download diff file Expand all files Collapse all files

11
hotspot/src/cpu/ppc/vm/templateInterpreterGenerator_ppc.cpp
View file

@ -1,6 +1,6 @@
/*
* Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2016 SAP SE. All rights reserved.
* Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2017 SAP SE. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -401,11 +401,8 @@ address TemplateInterpreterGenerator::generate_result_handler_for(BasicType type
case T_LONG:
break;
case T_OBJECT:
// unbox result if not null
__ cmpdi(CCR0, R3_RET, 0);
__ beq(CCR0, done);
__ ld(R3_RET, 0, R3_RET);
__ verify_oop(R3_RET);
// JNIHandles::resolve result.
__ resolve_jobject(R3_RET, R11_scratch1, R12_scratch2, /* needs_frame */ true); // kills R31
break;
case T_FLOAT:
break;