archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-20 11:04:34 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

6921352: JSR 292 needs its own deopt handler

Browse source 
We need to introduce a new MH deopt handler so we can easily determine if the deopt happened at a MH call site or not.

Reviewed-by: never, jrose
This commit is contained in:
Christian Thalinger 2010-02-01 19:29:46 +01:00
parent 8cc63249e9
commit 918c7a2e33
15 changed files with 253 additions and 133 deletions
Download patch file Download diff file Expand all files Collapse all files

13
hotspot/src/cpu/sparc/vm/frame_sparc.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
* Copyright 1997-2010 Sun Microsystems, Inc. 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
@ -366,8 +366,9 @@ frame::frame(intptr_t* sp, intptr_t* younger_sp, bool younger_frame_adjusted_sta
// as get_original_pc() needs correct value for unextended_sp()
if (_pc != NULL) {
_cb = CodeCache::find_blob(_pc);
if (_cb != NULL && _cb->is_nmethod() && ((nmethod*)_cb)->is_deopt_pc(_pc)) {
_pc = ((nmethod*)_cb)->get_original_pc(this);
address original_pc = nmethod::get_deopt_original_pc(this);
if (original_pc != NULL) {
_pc = original_pc;
_deopt_state = is_deoptimized;
} else {
_deopt_state = not_deoptimized;
@ -519,9 +520,9 @@ void frame::patch_pc(Thread* thread, address pc) {
_cb = CodeCache::find_blob(pc);
*O7_addr() = pc - pc_return_offset;
_cb = CodeCache::find_blob(_pc);
if (_cb != NULL && _cb->is_nmethod() && ((nmethod*)_cb)->is_deopt_pc(_pc)) {
address orig = ((nmethod*)_cb)->get_original_pc(this);
assert(orig == _pc, "expected original to be stored before patching");
address original_pc = nmethod::get_deopt_original_pc(this);
if (original_pc != NULL) {
assert(original_pc == _pc, "expected original to be stored before patching");
_deopt_state = is_deoptimized;
} else {
_deopt_state = not_deoptimized;