Mercurial > hg > graal-jvmci-8
comparison src/share/vm/runtime/deoptimization.cpp @ 1204:18a389214829
6921352: JSR 292 needs its own deopt handler
Summary: 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
author | twisti |
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date | Mon, 01 Feb 2010 19:29:46 +0100 |
parents | 24128c2ffa87 |
children | 87684f1a88b5 |
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1203:844a9d73ec22 | 1204:18a389214829 |
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1 /* | 1 /* |
2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. | 2 * Copyright 1997-2010 Sun Microsystems, Inc. All Rights Reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | 4 * |
5 * This code is free software; you can redistribute it and/or modify it | 5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as | 6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
232 // Compute the caller frame based on the sender sp of stub_frame and stored frame sizes info. | 232 // Compute the caller frame based on the sender sp of stub_frame and stored frame sizes info. |
233 CodeBlob* cb = stub_frame.cb(); | 233 CodeBlob* cb = stub_frame.cb(); |
234 // Verify we have the right vframeArray | 234 // Verify we have the right vframeArray |
235 assert(cb->frame_size() >= 0, "Unexpected frame size"); | 235 assert(cb->frame_size() >= 0, "Unexpected frame size"); |
236 intptr_t* unpack_sp = stub_frame.sp() + cb->frame_size(); | 236 intptr_t* unpack_sp = stub_frame.sp() + cb->frame_size(); |
237 | |
238 // If the deopt call site is a MethodHandle invoke call site we have | |
239 // to adjust the unpack_sp. | |
240 nmethod* deoptee_nm = deoptee.cb()->as_nmethod_or_null(); | |
241 if (deoptee_nm != NULL && deoptee_nm->is_method_handle_return(deoptee.pc())) | |
242 unpack_sp = deoptee.unextended_sp(); | |
237 | 243 |
238 #ifdef ASSERT | 244 #ifdef ASSERT |
239 assert(cb->is_deoptimization_stub() || cb->is_uncommon_trap_stub(), "just checking"); | 245 assert(cb->is_deoptimization_stub() || cb->is_uncommon_trap_stub(), "just checking"); |
240 Events::log("fetch unroll sp " INTPTR_FORMAT, unpack_sp); | 246 Events::log("fetch unroll sp " INTPTR_FORMAT, unpack_sp); |
241 #endif | 247 #endif |