diff -r fd16c54261b3 -r 489c9b5090e2 hotspot/src/share/vm/code/compiledIC.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hotspot/src/share/vm/code/compiledIC.cpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,662 @@ +/* + * Copyright 1997-2006 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 + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +#include "incls/_precompiled.incl" +#include "incls/_compiledIC.cpp.incl" + + +// Every time a compiled IC is changed or its type is being accessed, +// either the CompiledIC_lock must be set or we must be at a safe point. + +//----------------------------------------------------------------------------- +// Low-level access to an inline cache. Private, since they might not be +// MT-safe to use. + +void CompiledIC::set_cached_oop(oop cache) { + assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), ""); + assert (!is_optimized(), "an optimized virtual call does not have a cached oop"); + assert (cache == NULL || cache != badOop, "invalid oop"); + + if (TraceCompiledIC) { + tty->print(" "); + print_compiled_ic(); + tty->print_cr(" changing oop to " INTPTR_FORMAT, (address)cache); + } + + if (cache == NULL) cache = (oop)Universe::non_oop_word(); + + *_oop_addr = cache; + // fix up the relocations + RelocIterator iter = _oops; + while (iter.next()) { + if (iter.type() == relocInfo::oop_type) { + oop_Relocation* r = iter.oop_reloc(); + if (r->oop_addr() == _oop_addr) + r->fix_oop_relocation(); + } + } + return; +} + + +oop CompiledIC::cached_oop() const { + assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), ""); + assert (!is_optimized(), "an optimized virtual call does not have a cached oop"); + + if (!is_in_transition_state()) { + oop data = *_oop_addr; + // If we let the oop value here be initialized to zero... + assert(data != NULL || Universe::non_oop_word() == NULL, + "no raw nulls in CompiledIC oops, because of patching races"); + return (data == (oop)Universe::non_oop_word()) ? (oop)NULL : data; + } else { + return InlineCacheBuffer::cached_oop_for((CompiledIC *)this); + } +} + + +void CompiledIC::set_ic_destination(address entry_point) { + assert(entry_point != NULL, "must set legal entry point"); + assert(CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), ""); + if (TraceCompiledIC) { + tty->print(" "); + print_compiled_ic(); + tty->print_cr(" changing destination to " INTPTR_FORMAT, entry_point); + } + MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); +#ifdef ASSERT + CodeBlob* cb = CodeCache::find_blob_unsafe(_ic_call); + assert(cb != NULL && cb->is_nmethod(), "must be nmethod"); +#endif + _ic_call->set_destination_mt_safe(entry_point); +} + + +address CompiledIC::ic_destination() const { + assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), ""); + if (!is_in_transition_state()) { + return _ic_call->destination(); + } else { + return InlineCacheBuffer::ic_destination_for((CompiledIC *)this); + } +} + + +bool CompiledIC::is_in_transition_state() const { + assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), ""); + return InlineCacheBuffer::contains(_ic_call->destination()); +} + + +// Returns native address of 'call' instruction in inline-cache. Used by +// the InlineCacheBuffer when it needs to find the stub. +address CompiledIC::stub_address() const { + assert(is_in_transition_state(), "should only be called when we are in a transition state"); + return _ic_call->destination(); +} + + +//----------------------------------------------------------------------------- +// High-level access to an inline cache. Guaranteed to be MT-safe. + + +void CompiledIC::set_to_megamorphic(CallInfo* call_info, Bytecodes::Code bytecode, TRAPS) { + methodHandle method = call_info->selected_method(); + bool is_invoke_interface = (bytecode == Bytecodes::_invokeinterface && !call_info->has_vtable_index()); + assert(CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), ""); + assert(method->is_oop(), "cannot be NULL and must be oop"); + assert(!is_optimized(), "cannot set an optimized virtual call to megamorphic"); + assert(is_call_to_compiled() || is_call_to_interpreted(), "going directly to megamorphic?"); + + address entry; + if (is_invoke_interface) { + int index = klassItable::compute_itable_index(call_info->resolved_method()()); + entry = VtableStubs::create_stub(false, index, method()); + assert(entry != NULL, "entry not computed"); + klassOop k = call_info->resolved_method()->method_holder(); + assert(Klass::cast(k)->is_interface(), "sanity check"); + InlineCacheBuffer::create_transition_stub(this, k, entry); + } else { + // Can be different than method->vtable_index(), due to package-private etc. + int vtable_index = call_info->vtable_index(); + entry = VtableStubs::create_stub(true, vtable_index, method()); + InlineCacheBuffer::create_transition_stub(this, method(), entry); + } + + if (TraceICs) { + ResourceMark rm; + tty->print_cr ("IC@" INTPTR_FORMAT ": to megamorphic %s entry: " INTPTR_FORMAT, + instruction_address(), method->print_value_string(), entry); + } + + Events::log("compiledIC " INTPTR_FORMAT " --> megamorphic " INTPTR_FORMAT, this, (address)method()); + // We can't check this anymore. With lazy deopt we could have already + // cleaned this IC entry before we even return. This is possible if + // we ran out of space in the inline cache buffer trying to do the + // set_next and we safepointed to free up space. This is a benign + // race because the IC entry was complete when we safepointed so + // cleaning it immediately is harmless. + // assert(is_megamorphic(), "sanity check"); +} + + +// true if destination is megamorphic stub +bool CompiledIC::is_megamorphic() const { + assert(CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), ""); + assert(!is_optimized(), "an optimized call cannot be megamorphic"); + + // Cannot rely on cached_oop. It is either an interface or a method. + return VtableStubs::is_entry_point(ic_destination()); +} + +bool CompiledIC::is_call_to_compiled() const { + assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), ""); + + // Use unsafe, since an inline cache might point to a zombie method. However, the zombie + // method is guaranteed to still exist, since we only remove methods after all inline caches + // has been cleaned up + CodeBlob* cb = CodeCache::find_blob_unsafe(ic_destination()); + bool is_monomorphic = (cb != NULL && cb->is_nmethod()); + // Check that the cached_oop is a klass for non-optimized monomorphic calls + // This assertion is invalid for compiler1: a call that does not look optimized (no static stub) can be used + // for calling directly to vep without using the inline cache (i.e., cached_oop == NULL) +#ifdef ASSERT +#ifdef TIERED + CodeBlob* caller = CodeCache::find_blob_unsafe(instruction_address()); + bool is_c1_method = caller->is_compiled_by_c1(); +#else +#ifdef COMPILER1 + bool is_c1_method = true; +#else + bool is_c1_method = false; +#endif // COMPILER1 +#endif // TIERED + assert( is_c1_method || + !is_monomorphic || + is_optimized() || + (cached_oop() != NULL && cached_oop()->is_klass()), "sanity check"); +#endif // ASSERT + return is_monomorphic; +} + + +bool CompiledIC::is_call_to_interpreted() const { + assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), ""); + // Call to interpreter if destination is either calling to a stub (if it + // is optimized), or calling to an I2C blob + bool is_call_to_interpreted = false; + if (!is_optimized()) { + // must use unsafe because the destination can be a zombie (and we're cleaning) + // and the print_compiled_ic code wants to know if site (in the non-zombie) + // is to the interpreter. + CodeBlob* cb = CodeCache::find_blob_unsafe(ic_destination()); + is_call_to_interpreted = (cb != NULL && cb->is_adapter_blob()); + assert(!is_call_to_interpreted || (cached_oop() != NULL && cached_oop()->is_compiledICHolder()), "sanity check"); + } else { + // Check if we are calling into our own codeblob (i.e., to a stub) + CodeBlob* cb = CodeCache::find_blob(_ic_call->instruction_address()); + address dest = ic_destination(); +#ifdef ASSERT + { + CodeBlob* db = CodeCache::find_blob_unsafe(dest); + assert(!db->is_adapter_blob(), "must use stub!"); + } +#endif /* ASSERT */ + is_call_to_interpreted = cb->contains(dest); + } + return is_call_to_interpreted; +} + + +void CompiledIC::set_to_clean() { + assert(SafepointSynchronize::is_at_safepoint() || CompiledIC_lock->is_locked() , "MT-unsafe call"); + if (TraceInlineCacheClearing || TraceICs) { + tty->print_cr("IC@" INTPTR_FORMAT ": set to clean", instruction_address()); + print(); + } + + address entry; + if (is_optimized()) { + entry = SharedRuntime::get_resolve_opt_virtual_call_stub(); + } else { + entry = SharedRuntime::get_resolve_virtual_call_stub(); + } + + // A zombie transition will always be safe, since the oop has already been set to NULL, so + // we only need to patch the destination + bool safe_transition = is_optimized() || SafepointSynchronize::is_at_safepoint(); + + if (safe_transition) { + if (!is_optimized()) set_cached_oop(NULL); + // Kill any leftover stub we might have too + if (is_in_transition_state()) { + ICStub* old_stub = ICStub_from_destination_address(stub_address()); + old_stub->clear(); + } + set_ic_destination(entry); + } else { + // Unsafe transition - create stub. + InlineCacheBuffer::create_transition_stub(this, NULL, entry); + } + // We can't check this anymore. With lazy deopt we could have already + // cleaned this IC entry before we even return. This is possible if + // we ran out of space in the inline cache buffer trying to do the + // set_next and we safepointed to free up space. This is a benign + // race because the IC entry was complete when we safepointed so + // cleaning it immediately is harmless. + // assert(is_clean(), "sanity check"); +} + + +bool CompiledIC::is_clean() const { + assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), ""); + bool is_clean = false; + address dest = ic_destination(); + is_clean = dest == SharedRuntime::get_resolve_opt_virtual_call_stub() || + dest == SharedRuntime::get_resolve_virtual_call_stub(); + assert(!is_clean || is_optimized() || cached_oop() == NULL, "sanity check"); + return is_clean; +} + + +void CompiledIC::set_to_monomorphic(const CompiledICInfo& info) { + assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), ""); + // Updating a cache to the wrong entry can cause bugs that are very hard + // to track down - if cache entry gets invalid - we just clean it. In + // this way it is always the same code path that is responsible for + // updating and resolving an inline cache + // + // The above is no longer true. SharedRuntime::fixup_callers_callsite will change optimized + // callsites. In addition ic_miss code will update a site to monomorphic if it determines + // that an monomorphic call to the interpreter can now be monomorphic to compiled code. + // + // In both of these cases the only thing being modifed is the jump/call target and these + // transitions are mt_safe + + Thread *thread = Thread::current(); + if (info._to_interpreter) { + // Call to interpreter + if (info.is_optimized() && is_optimized()) { + assert(is_clean(), "unsafe IC path"); + MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); + // the call analysis (callee structure) specifies that the call is optimized + // (either because of CHA or the static target is final) + // At code generation time, this call has been emitted as static call + // Call via stub + assert(info.cached_oop().not_null() && info.cached_oop()->is_method(), "sanity check"); + CompiledStaticCall* csc = compiledStaticCall_at(instruction_address()); + methodHandle method (thread, (methodOop)info.cached_oop()()); + csc->set_to_interpreted(method, info.entry()); + if (TraceICs) { + ResourceMark rm(thread); + tty->print_cr ("IC@" INTPTR_FORMAT ": monomorphic to interpreter: %s", + instruction_address(), + method->print_value_string()); + } + } else { + // Call via method-klass-holder + assert(info.cached_oop().not_null(), "must be set"); + InlineCacheBuffer::create_transition_stub(this, info.cached_oop()(), info.entry()); + + if (TraceICs) { + ResourceMark rm(thread); + tty->print_cr ("IC@" INTPTR_FORMAT ": monomorphic to interpreter via mkh", instruction_address()); + } + } + } else { + // Call to compiled code + bool static_bound = info.is_optimized() || (info.cached_oop().is_null()); +#ifdef ASSERT + CodeBlob* cb = CodeCache::find_blob_unsafe(info.entry()); + assert (cb->is_nmethod(), "must be compiled!"); +#endif /* ASSERT */ + + // This is MT safe if we come from a clean-cache and go through a + // non-verified entry point + bool safe = SafepointSynchronize::is_at_safepoint() || + (!is_in_transition_state() && (info.is_optimized() || static_bound || is_clean())); + + if (!safe) { + InlineCacheBuffer::create_transition_stub(this, info.cached_oop()(), info.entry()); + } else { + set_ic_destination(info.entry()); + if (!is_optimized()) set_cached_oop(info.cached_oop()()); + } + + if (TraceICs) { + ResourceMark rm(thread); + assert(info.cached_oop() == NULL || info.cached_oop()()->is_klass(), "must be"); + tty->print_cr ("IC@" INTPTR_FORMAT ": monomorphic to compiled (rcvr klass) %s: %s", + instruction_address(), + ((klassOop)info.cached_oop()())->print_value_string(), + (safe) ? "" : "via stub"); + } + } + // We can't check this anymore. With lazy deopt we could have already + // cleaned this IC entry before we even return. This is possible if + // we ran out of space in the inline cache buffer trying to do the + // set_next and we safepointed to free up space. This is a benign + // race because the IC entry was complete when we safepointed so + // cleaning it immediately is harmless. + // assert(is_call_to_compiled() || is_call_to_interpreted(), "sanity check"); +} + + +// is_optimized: Compiler has generated an optimized call (i.e., no inline +// cache) static_bound: The call can be static bound (i.e, no need to use +// inline cache) +void CompiledIC::compute_monomorphic_entry(methodHandle method, + KlassHandle receiver_klass, + bool is_optimized, + bool static_bound, + CompiledICInfo& info, + TRAPS) { + info._is_optimized = is_optimized; + + nmethod* method_code = method->code(); + address entry = NULL; + if (method_code != NULL) { + // Call to compiled code + if (static_bound || is_optimized) { + entry = method_code->verified_entry_point(); + } else { + entry = method_code->entry_point(); + } + } + if (entry != NULL) { + // Call to compiled code + info._entry = entry; + if (static_bound || is_optimized) { + info._cached_oop = Handle(THREAD, (oop)NULL); + } else { + info._cached_oop = receiver_klass; + } + info._to_interpreter = false; + } else { + // Note: the following problem exists with Compiler1: + // - at compile time we may or may not know if the destination is final + // - if we know that the destination is final, we will emit an optimized + // virtual call (no inline cache), and need a methodOop to make a call + // to the interpreter + // - if we do not know if the destination is final, we emit a standard + // virtual call, and use CompiledICHolder to call interpreted code + // (no static call stub has been generated) + // However in that case we will now notice it is static_bound + // and convert the call into what looks to be an optimized + // virtual call. This causes problems in verifying the IC because + // it look vanilla but is optimized. Code in is_call_to_interpreted + // is aware of this and weakens its asserts. + + info._to_interpreter = true; + // static_bound should imply is_optimized -- otherwise we have a + // performance bug (statically-bindable method is called via + // dynamically-dispatched call note: the reverse implication isn't + // necessarily true -- the call may have been optimized based on compiler + // analysis (static_bound is only based on "final" etc.) +#ifdef COMPILER2 +#ifdef TIERED +#if defined(ASSERT) + // can't check the assert because we don't have the CompiledIC with which to + // find the address if the call instruction. + // + // CodeBlob* cb = find_blob_unsafe(instruction_address()); + // assert(cb->is_compiled_by_c1() || !static_bound || is_optimized, "static_bound should imply is_optimized"); +#endif // ASSERT +#else + assert(!static_bound || is_optimized, "static_bound should imply is_optimized"); +#endif // TIERED +#endif // COMPILER2 + if (is_optimized) { + // Use stub entry + info._entry = method()->get_c2i_entry(); + info._cached_oop = method; + } else { + // Use mkh entry + oop holder = oopFactory::new_compiledICHolder(method, receiver_klass, CHECK); + info._cached_oop = Handle(THREAD, holder); + info._entry = method()->get_c2i_unverified_entry(); + } + } +} + + +inline static RelocIterator parse_ic(CodeBlob* code, address ic_call, oop* &_oop_addr, bool *is_optimized) { + address first_oop = NULL; + // Mergers please note: Sun SC5.x CC insists on an lvalue for a reference parameter. + CodeBlob *code1 = code; + return virtual_call_Relocation::parse_ic(code1, ic_call, first_oop, _oop_addr, is_optimized); +} + +CompiledIC::CompiledIC(NativeCall* ic_call) + : _ic_call(ic_call), + _oops(parse_ic(NULL, ic_call->instruction_address(), _oop_addr, &_is_optimized)) +{ +} + + +CompiledIC::CompiledIC(Relocation* ic_reloc) + : _ic_call(nativeCall_at(ic_reloc->addr())), + _oops(parse_ic(ic_reloc->code(), ic_reloc->addr(), _oop_addr, &_is_optimized)) +{ + assert(ic_reloc->type() == relocInfo::virtual_call_type || + ic_reloc->type() == relocInfo::opt_virtual_call_type, "wrong reloc. info"); +} + + +// ---------------------------------------------------------------------------- + +void CompiledStaticCall::set_to_clean() { + assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), "mt unsafe call"); + // Reset call site + MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); +#ifdef ASSERT + CodeBlob* cb = CodeCache::find_blob_unsafe(this); + assert(cb != NULL && cb->is_nmethod(), "must be nmethod"); +#endif + set_destination_mt_safe(SharedRuntime::get_resolve_static_call_stub()); + + // Do not reset stub here: It is too expensive to call find_stub. + // Instead, rely on caller (nmethod::clear_inline_caches) to clear + // both the call and its stub. +} + + +bool CompiledStaticCall::is_clean() const { + return destination() == SharedRuntime::get_resolve_static_call_stub(); +} + +bool CompiledStaticCall::is_call_to_compiled() const { + return CodeCache::contains(destination()); +} + + +bool CompiledStaticCall::is_call_to_interpreted() const { + // It is a call to interpreted, if it calls to a stub. Hence, the destination + // must be in the stub part of the nmethod that contains the call + nmethod* nm = CodeCache::find_nmethod(instruction_address()); + return nm->stub_contains(destination()); +} + + +void CompiledStaticCall::set_to_interpreted(methodHandle callee, address entry) { + address stub=find_stub(); + assert(stub!=NULL, "stub not found"); + + if (TraceICs) { + ResourceMark rm; + tty->print_cr("CompiledStaticCall@" INTPTR_FORMAT ": set_to_interpreted %s", + instruction_address(), + callee->name_and_sig_as_C_string()); + } + + NativeMovConstReg* method_holder = nativeMovConstReg_at(stub); // creation also verifies the object + NativeJump* jump = nativeJump_at(method_holder->next_instruction_address()); + + assert(method_holder->data() == 0 || method_holder->data() == (intptr_t)callee(), "a) MT-unsafe modification of inline cache"); + assert(jump->jump_destination() == (address)-1 || jump->jump_destination() == entry, "b) MT-unsafe modification of inline cache"); + + // Update stub + method_holder->set_data((intptr_t)callee()); + jump->set_jump_destination(entry); + + // Update jump to call + set_destination_mt_safe(stub); +} + + +void CompiledStaticCall::set(const StaticCallInfo& info) { + assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), "mt unsafe call"); + MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); + // Updating a cache to the wrong entry can cause bugs that are very hard + // to track down - if cache entry gets invalid - we just clean it. In + // this way it is always the same code path that is responsible for + // updating and resolving an inline cache + assert(is_clean(), "do not update a call entry - use clean"); + + if (info._to_interpreter) { + // Call to interpreted code + set_to_interpreted(info.callee(), info.entry()); + } else { + if (TraceICs) { + ResourceMark rm; + tty->print_cr("CompiledStaticCall@" INTPTR_FORMAT ": set_to_compiled " INTPTR_FORMAT, + instruction_address(), + info.entry()); + } + // Call to compiled code + assert (CodeCache::contains(info.entry()), "wrong entry point"); + set_destination_mt_safe(info.entry()); + } +} + + +// Compute settings for a CompiledStaticCall. Since we might have to set +// the stub when calling to the interpreter, we need to return arguments. +void CompiledStaticCall::compute_entry(methodHandle m, StaticCallInfo& info) { + nmethod* m_code = m->code(); + info._callee = m; + if (m_code != NULL) { + info._to_interpreter = false; + info._entry = m_code->verified_entry_point(); + } else { + // Callee is interpreted code. In any case entering the interpreter + // puts a converter-frame on the stack to save arguments. + info._to_interpreter = true; + info._entry = m()->get_c2i_entry(); + } +} + + +void CompiledStaticCall::set_stub_to_clean(static_stub_Relocation* static_stub) { + assert (CompiledIC_lock->is_locked() || SafepointSynchronize::is_at_safepoint(), "mt unsafe call"); + // Reset stub + address stub = static_stub->addr(); + assert(stub!=NULL, "stub not found"); + NativeMovConstReg* method_holder = nativeMovConstReg_at(stub); // creation also verifies the object + NativeJump* jump = nativeJump_at(method_holder->next_instruction_address()); + method_holder->set_data(0); + jump->set_jump_destination((address)-1); +} + + +address CompiledStaticCall::find_stub() { + // Find reloc. information containing this call-site + RelocIterator iter((nmethod*)NULL, instruction_address()); + while (iter.next()) { + if (iter.addr() == instruction_address()) { + switch(iter.type()) { + case relocInfo::static_call_type: + return iter.static_call_reloc()->static_stub(); + // We check here for opt_virtual_call_type, since we reuse the code + // from the CompiledIC implementation + case relocInfo::opt_virtual_call_type: + return iter.opt_virtual_call_reloc()->static_stub(); + case relocInfo::poll_type: + case relocInfo::poll_return_type: // A safepoint can't overlap a call. + default: + ShouldNotReachHere(); + } + } + } + return NULL; +} + + +//----------------------------------------------------------------------------- +// Non-product mode code +#ifndef PRODUCT + +void CompiledIC::verify() { + // make sure code pattern is actually a call imm32 instruction + _ic_call->verify(); + if (os::is_MP()) { + _ic_call->verify_alignment(); + } + assert(is_clean() || is_call_to_compiled() || is_call_to_interpreted() + || is_optimized() || is_megamorphic(), "sanity check"); +} + + +void CompiledIC::print() { + print_compiled_ic(); + tty->cr(); +} + + +void CompiledIC::print_compiled_ic() { + tty->print("Inline cache at " INTPTR_FORMAT ", calling %s " INTPTR_FORMAT, + instruction_address(), is_call_to_interpreted() ? "interpreted " : "", ic_destination()); +} + + +void CompiledStaticCall::print() { + tty->print("static call at " INTPTR_FORMAT " -> ", instruction_address()); + if (is_clean()) { + tty->print("clean"); + } else if (is_call_to_compiled()) { + tty->print("compiled"); + } else if (is_call_to_interpreted()) { + tty->print("interpreted"); + } + tty->cr(); +} + +void CompiledStaticCall::verify() { + // Verify call + NativeCall::verify(); + if (os::is_MP()) { + verify_alignment(); + } + + // Verify stub + address stub = find_stub(); + assert(stub != NULL, "no stub found for static call"); + NativeMovConstReg* method_holder = nativeMovConstReg_at(stub); // creation also verifies the object + NativeJump* jump = nativeJump_at(method_holder->next_instruction_address()); + + // Verify state + assert(is_clean() || is_call_to_compiled() || is_call_to_interpreted(), "sanity check"); +} + +#endif