stan/jdk-24
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

8259316: [REDO] C1/C2 compiler support for blackholes

Browse Source 
Reviewed-by: vlivanov, kvn, iignatyev
This commit is contained in:
Aleksey Shipilev 2021-05-05 14:27:21 +00:00
parent f07bb2f4b9
commit 6018336fc5
32 changed files with 1167 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/hotspot/share/c1/c1_Compiler.cpp
View File

@ -229,6 +229,8 @@ bool Compiler::is_intrinsic_supported(const methodHandle& method) {
break;
case vmIntrinsics::_getObjectSize:
break;
case vmIntrinsics::_blackhole:
break;
default:
return false; // Intrinsics not on the previous list are not available.
}

2
src/hotspot/share/c1/c1_GraphBuilder.cpp
View File

@ -3419,7 +3419,7 @@ bool GraphBuilder::try_inline(ciMethod* callee, bool holder_known, bool ignore_r
// handle intrinsics
if (callee->intrinsic_id() != vmIntrinsics::_none &&
(CheckIntrinsics ? callee->intrinsic_candidate() : true)) {
callee->check_intrinsic_candidate()) {
if (try_inline_intrinsics(callee, ignore_return)) {
print_inlining(callee, "intrinsic");
if (callee->has_reserved_stack_access()) {

13
src/hotspot/share/c1/c1_LIRGenerator.cpp
View File

@ -3202,6 +3202,10 @@ void LIRGenerator::do_Intrinsic(Intrinsic* x) {
do_vectorizedMismatch(x);
break;
case vmIntrinsics::_blackhole:
do_blackhole(x);
break;
default: ShouldNotReachHere(); break;
}
}
@ -3621,6 +3625,15 @@ void LIRGenerator::do_RangeCheckPredicate(RangeCheckPredicate *x) {
}
}
void LIRGenerator::do_blackhole(Intrinsic *x) {
assert(!x->has_receiver(), "Should have been checked before: only static methods here");
for (int c = 0; c < x->number_of_arguments(); c++) {
// Load the argument
LIRItem vitem(x->argument_at(c), this);
vitem.load_item();
// ...and leave it unused.
}
}
LIR_Opr LIRGenerator::call_runtime(Value arg1, address entry, ValueType* result_type, CodeEmitInfo* info) {
LIRItemList args(1);

3
src/hotspot/share/c1/c1_LIRGenerator.hpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2005, 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2005, 2021, Oracle and/or its affiliates. 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
@ -265,6 +265,7 @@ class LIRGenerator: public InstructionVisitor, public BlockClosure {
void do_update_CRC32(Intrinsic* x);
void do_update_CRC32C(Intrinsic* x);
void do_vectorizedMismatch(Intrinsic* x);
void do_blackhole(Intrinsic* x);
public:
LIR_Opr call_runtime(BasicTypeArray* signature, LIRItemList* args, address entry, ValueType* result_type, CodeEmitInfo* info);

3
src/hotspot/share/ci/ciMethod.cpp
View File

@ -154,6 +154,8 @@ ciMethod::ciMethod(const methodHandle& h_m, ciInstanceKlass* holder) :
ciReplay::initialize(this);
}
#endif
CompilerOracle::tag_blackhole_if_possible(h_m);
}
@ -1214,6 +1216,7 @@ bool ciMethod::is_getter () const { FETCH_FLAG_FROM_VM(is_getter);
bool ciMethod::is_setter () const { FETCH_FLAG_FROM_VM(is_setter); }
bool ciMethod::is_accessor () const { FETCH_FLAG_FROM_VM(is_accessor); }
bool ciMethod::is_initializer () const { FETCH_FLAG_FROM_VM(is_initializer); }
bool ciMethod::is_empty () const { FETCH_FLAG_FROM_VM(is_empty_method); }
bool ciMethod::is_boxing_method() const {
if (intrinsic_id() != vmIntrinsics::_none && holder()->is_box_klass()) {

10
src/hotspot/share/ci/ciMethod.hpp
View File

@ -204,6 +204,15 @@ class ciMethod : public ciMetadata {
bool intrinsic_candidate() const { return get_Method()->intrinsic_candidate(); }
bool is_static_initializer() const { return get_Method()->is_static_initializer(); }
bool check_intrinsic_candidate() const {
if (intrinsic_id() == vmIntrinsics::_blackhole) {
// This is the intrinsic without an associated method, so no intrinsic_candidate
// flag is set. The intrinsic is still correct.
return true;
}
return (CheckIntrinsics ? intrinsic_candidate() : true);
}
int highest_osr_comp_level();
Bytecodes::Code java_code_at_bci(int bci) {
@ -346,6 +355,7 @@ class ciMethod : public ciMetadata {
bool is_setter () const;
bool is_accessor () const;
bool is_initializer () const;
bool is_empty () const;
bool can_be_statically_bound() const { return _can_be_statically_bound; }
bool has_reserved_stack_access() const { return _has_reserved_stack_access; }
bool is_boxing_method() const;

5
src/hotspot/share/classfile/classFileParser.cpp
View File

@ -5304,6 +5304,11 @@ static void check_methods_for_intrinsics(const InstanceKlass* ik,
// is defined for it.
continue;
}
if (vmIntrinsics::_blackhole == id) {
// The _blackhole intrinsic is a special marker. No explicit method
// is defined for it.
continue;
}
if (vmIntrinsics::class_for(id) == klass_id) {
// Check if the current class contains a method with the same

1
src/hotspot/share/classfile/vmIntrinsics.cpp
View File

@ -153,6 +153,7 @@ bool vmIntrinsics::should_be_pinned(vmIntrinsics::ID id) {
#endif
case vmIntrinsics::_currentTimeMillis:
case vmIntrinsics::_nanoTime:
case vmIntrinsics::_blackhole:
return true;
default:
return false;

3
src/hotspot/share/classfile/vmIntrinsics.hpp
View File

@ -534,6 +534,9 @@ class methodHandle;
do_name( getObjectSize_name, "getObjectSize0") \
do_alias( getObjectSize_signature, long_object_long_signature) \
\
/* special marker for blackholed methods: */ \
do_intrinsic(_blackhole, java_lang_Object, blackhole_name, star_name, F_S) \
\
/* unsafe memory references (there are a lot of them...) */ \
do_signature(getReference_signature, "(Ljava/lang/Object;J)Ljava/lang/Object;") \
do_signature(putReference_signature, "(Ljava/lang/Object;JLjava/lang/Object;)V") \

1
src/hotspot/share/classfile/vmSymbols.hpp
View File

@ -283,6 +283,7 @@
template(signature_name, "signature") \
template(slot_name, "slot") \
template(trusted_final_name, "trustedFinal") \
template(blackhole_name, "<blackhole>") /*fake name*/ \
\
/* Support for annotations (JDK 1.5 and above) */ \
\

38
src/hotspot/share/compiler/compilerOracle.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 1998, 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1998, 2021, Oracle and/or its affiliates. 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
@ -306,6 +306,11 @@ static void register_command(TypedMethodOptionMatcher* matcher,
}
assert(CompilerOracle::option_matches_type(option, value), "Value must match option type");
if (option == CompileCommand::Blackhole && !UnlockExperimentalVMOptions) {
warning("Blackhole compile option is experimental and must be enabled via -XX:+UnlockExperimentalVMOptions");
return;
}
matcher->init(option, option_list);
matcher->set_value<T>(value);
option_list = matcher;
@ -417,6 +422,37 @@ bool CompilerOracle::should_break_at(const methodHandle& method) {
return check_predicate(CompileCommand::Break, method);
}
void CompilerOracle::tag_blackhole_if_possible(const methodHandle& method) {
if (!check_predicate(CompileCommand::Blackhole, method)) {
return;
}
guarantee(UnlockExperimentalVMOptions, "Checked during initial parsing");
if (method->result_type() != T_VOID) {
warning("Blackhole compile option only works for methods with void type: %s",
method->name_and_sig_as_C_string());
return;
}
if (!method->is_empty_method()) {
warning("Blackhole compile option only works for empty methods: %s",
method->name_and_sig_as_C_string());
return;
}
if (!method->is_static()) {
warning("Blackhole compile option only works for static methods: %s",
method->name_and_sig_as_C_string());
return;
}
if (method->intrinsic_id() == vmIntrinsics::_blackhole) {
return;
}
if (method->intrinsic_id() != vmIntrinsics::_none) {
warning("Blackhole compile option only works for methods that do not have intrinsic set: %s, %s",
method->name_and_sig_as_C_string(), vmIntrinsics::name_at(method->intrinsic_id()));
return;
}
method->set_intrinsic_id(vmIntrinsics::_blackhole);
}
static enum CompileCommand match_option_name(const char* line, int* bytes_read, char* errorbuf, int bufsize) {
assert(ARRAY_SIZE(option_names) == static_cast<int>(CompileCommand::Count), "option_names size mismatch");

6
src/hotspot/share/compiler/compilerOracle.hpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 1998, 2019, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1998, 2021, Oracle and/or its affiliates. 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
@ -51,6 +51,7 @@ class methodHandle;
option(Print, "print", Bool) \
option(Inline, "inline", Bool) \
option(DontInline, "dontinline", Bool) \
option(Blackhole, "blackhole", Bool) \
option(CompileOnly, "compileonly", Bool)\
option(Exclude, "exclude", Bool) \
option(Break, "break", Bool) \
@ -144,6 +145,9 @@ class CompilerOracle : AllStatic {
// Tells whether there are any methods to print for print_method_statistics()
static bool should_print_methods();
// Tags the method as blackhole candidate, if possible.
static void tag_blackhole_if_possible(const methodHandle& method);
// A wrapper for checking bool options
static bool has_option(const methodHandle& method, enum CompileCommand option);

2
src/hotspot/share/jvmci/jvmciEnv.cpp
View File

@ -28,6 +28,7 @@
#include "classfile/symbolTable.hpp"
#include "classfile/systemDictionary.hpp"
#include "code/codeCache.hpp"
#include "compiler/compilerOracle.hpp"
#include "compiler/compileTask.hpp"
#include "memory/oopFactory.hpp"
#include "memory/resourceArea.hpp"
@ -991,6 +992,7 @@ JVMCIObject JVMCIEnv::get_jvmci_method(const methodHandle& method, JVMCI_TRAPS)
jmetadata handle = _runtime->allocate_handle(method);
jboolean exception = false;
if (is_hotspot()) {
CompilerOracle::tag_blackhole_if_possible(method);
JavaValue result(T_OBJECT);
JavaCallArguments args;
args.push_long((jlong) handle);

2
src/hotspot/share/opto/c2compiler.cpp
View File

@ -677,6 +677,8 @@ bool C2Compiler::is_intrinsic_supported(const methodHandle& method, bool is_virt
case vmIntrinsics::_VectorInsert:
case vmIntrinsics::_VectorExtract:
return EnableVectorSupport;
case vmIntrinsics::_blackhole:
break;
default:
return false;

1
src/hotspot/share/opto/classes.hpp
View File

@ -44,6 +44,7 @@ macro(ArrayCopy)
macro(AryEq)
macro(AtanD)
macro(Binary)
macro(Blackhole)
macro(Bool)
macro(BoxLock)
macro(ReverseBytesI)

2
src/hotspot/share/opto/compile.cpp
View File

@ -3519,6 +3519,8 @@ void Compile::final_graph_reshaping_main_switch(Node* n, Final_Reshape_Counts& f
}
break;
}
case Op_Blackhole:
break;
case Op_RangeCheck: {
RangeCheckNode* rc = n->as_RangeCheck();
Node* iff = new IfNode(rc->in(0), rc->in(1), rc->_prob, rc->_fcnt);

25
src/hotspot/share/opto/library_call.cpp
View File

@ -111,7 +111,7 @@ JVMState* LibraryIntrinsic::generate(JVMState* jvms) {
Node* ctrl = kit.control();
#endif
// Try to inline the intrinsic.
if ((CheckIntrinsics ? callee->intrinsic_candidate() : true) &&
if (callee->check_intrinsic_candidate() &&
kit.try_to_inline(_last_predicate)) {
const char *inline_msg = is_virtual() ? "(intrinsic, virtual)"
: "(intrinsic)";
@ -669,6 +669,9 @@ bool LibraryCallKit::try_to_inline(int predicate) {
case vmIntrinsics::_getObjectSize:
return inline_getObjectSize();
case vmIntrinsics::_blackhole:
return inline_blackhole();
default:
// If you get here, it may be that someone has added a new intrinsic
// to the list in vmIntrinsics.hpp without implementing it here.
@ -6911,3 +6914,23 @@ bool LibraryCallKit::inline_getObjectSize() {
return true;
}
//------------------------------- inline_blackhole --------------------------------------
//
// Make sure all arguments to this node are alive.
// This matches methods that were requested to be blackholed through compile commands.
//
bool LibraryCallKit::inline_blackhole() {
assert(callee()->is_static(), "Should have been checked before: only static methods here");
assert(callee()->is_empty(), "Should have been checked before: only empty methods here");
assert(callee()->holder()->is_loaded(), "Should have been checked before: only methods for loaded classes here");
// Bind call arguments as blackhole arguments to keep them alive
Node* bh = insert_mem_bar(Op_Blackhole);
uint nargs = callee()->arg_size();
for (uint i = 0; i < nargs; i++) {
bh->add_req(argument(i));
}
return true;
}

2
src/hotspot/share/opto/library_call.hpp
View File

@ -344,5 +344,7 @@ class LibraryCallKit : public GraphKit {
}
bool inline_getObjectSize();
bool inline_blackhole();
};

23
src/hotspot/share/opto/memnode.cpp
View File

@ -34,6 +34,7 @@
#include "opto/addnode.hpp"
#include "opto/arraycopynode.hpp"
#include "opto/cfgnode.hpp"
#include "opto/regalloc.hpp"
#include "opto/compile.hpp"
#include "opto/connode.hpp"
#include "opto/convertnode.hpp"
@ -3305,6 +3306,7 @@ MemBarNode* MemBarNode::make(Compile* C, int opcode, int atp, Node* pn) {
case Op_OnSpinWait: return new OnSpinWaitNode(C, atp, pn);
case Op_Initialize: return new InitializeNode(C, atp, pn);
case Op_MemBarStoreStore: return new MemBarStoreStoreNode(C, atp, pn);
case Op_Blackhole: return new BlackholeNode(C, atp, pn);
default: ShouldNotReachHere(); return NULL;
}
}
@ -3539,6 +3541,27 @@ MemBarNode* MemBarNode::leading_membar() const {
return mb;
}
#ifndef PRODUCT
void BlackholeNode::format(PhaseRegAlloc* ra, outputStream* st) const {
st->print("blackhole ");
bool first = true;
for (uint i = 0; i < req(); i++) {
Node* n = in(i);
if (n != NULL && OptoReg::is_valid(ra->get_reg_first(n))) {
if (first) {
first = false;
} else {
st->print(", ");
}
char buf[128];
ra->dump_register(n, buf);
st->print("%s", buf);
}
}
st->cr();
}
#endif
//===========================InitializeNode====================================
// SUMMARY:
// This node acts as a memory barrier on raw memory, after some raw stores.

22
src/hotspot/share/opto/memnode.hpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2021, Oracle and/or its affiliates. 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
@ -1337,6 +1337,26 @@ public:
virtual int Opcode() const;
};
//------------------------------BlackholeNode----------------------------
// Blackhole all arguments. This node would survive through the compiler
// the effects on its arguments, and would be finally matched to nothing.
class BlackholeNode : public MemBarNode {
public:
BlackholeNode(Compile* C, int alias_idx, Node* precedent)
: MemBarNode(C, alias_idx, precedent) {}
virtual int Opcode() const;
virtual uint ideal_reg() const { return 0; } // not matched in the AD file
const RegMask &in_RegMask(uint idx) const {
// Fake the incoming arguments mask for blackholes: accept all registers
// and all stack slots. This would avoid any redundant register moves
// for blackhole inputs.
return RegMask::All;
}
#ifndef PRODUCT
virtual void format(PhaseRegAlloc* ra, outputStream* st) const;
#endif
};
// Isolation of object setup after an AllocateNode and before next safepoint.
// (See comment in memnode.cpp near InitializeNode::InitializeNode for semantics.)
class InitializeNode: public MemBarNode {

1
src/hotspot/share/opto/node.hpp
View File

@ -44,6 +44,7 @@ class AllocateNode;
class ArrayCopyNode;
class BaseCountedLoopNode;
class BaseCountedLoopEndNode;
class BlackholeNode;
class Block;
class BoolNode;
class BoxLockNode;

7
src/hotspot/share/opto/regmask.cpp
View File

@ -51,6 +51,13 @@ void OptoReg::dump(int r, outputStream *st) {
//=============================================================================
const RegMask RegMask::Empty;
const RegMask RegMask::All(
# define BODY(I) -1,
FORALL_BODY
# undef BODY
0
);
//=============================================================================
bool RegMask::is_vector(uint ireg) {
return (ireg == Op_VecA || ireg == Op_VecS || ireg == Op_VecD ||

1
src/hotspot/share/opto/regmask.hpp
View File

@ -357,6 +357,7 @@ class RegMask {
#endif
static const RegMask Empty; // Common empty mask
static const RegMask All; // Common all mask
static bool can_represent(OptoReg::Name reg) {
// NOTE: -1 in computation reflects the usage of the last

1
src/hotspot/share/runtime/vmStructs.cpp
View File

@ -1596,6 +1596,7 @@ typedef HashtableEntry<InstanceKlass*, mtClass> KlassHashtableEntry;
declare_c2_type(MemBarVolatileNode, MemBarNode) \
declare_c2_type(MemBarCPUOrderNode, MemBarNode) \
declare_c2_type(OnSpinWaitNode, MemBarNode) \
declare_c2_type(BlackholeNode, MemBarNode) \
declare_c2_type(InitializeNode, MemBarNode) \
declare_c2_type(ThreadLocalNode, Node) \
declare_c2_type(Opaque1Node, Node) \

1
test/hotspot/jtreg/TEST.groups
View File

@ -95,6 +95,7 @@ hotspot_slow_compiler = \
tier1_compiler_1 = \
compiler/arraycopy/ \
compiler/blackhole/ \
compiler/c1/ \
compiler/c2/ \
-compiler/c2/Test6850611.java \

120
test/hotspot/jtreg/compiler/blackhole/BlackholeExistingIntrinsicWarningTest.java Normal file
View File

@ -0,0 +1,120 @@
/*
* Copyright (c) 2021, Red Hat, 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @library /test/lib /
* @requires vm.flagless
* @run driver compiler.blackhole.BlackholeExistingIntrinsicWarningTest
*/
package compiler.blackhole;
import java.io.IOException;
import java.util.List;
import java.util.Arrays;
import java.util.ArrayList;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
public class BlackholeExistingIntrinsicWarningTest {
private static final int CYCLES = 100_000;
private static final int TRIES = 10;
public static void main(String[] args) throws IOException {
if (args.length == 0) {
driver();
} else {
runner();
}
}
private static final String MSG =
"Blackhole compile option only works for methods that do not have intrinsic set: java.lang.Thread.onSpinWait()V, _onSpinWait";
private static List<String> cmdline(String[] args) {
List<String> r = new ArrayList();
r.add("-Xmx128m");
r.add("-Xbatch");
r.addAll(Arrays.asList(args));
r.add("compiler.blackhole.BlackholeExistingIntrinsicWarningTest");
r.add("run");
return r;
}
public static void shouldFail(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldContain(MSG);
}
public static void shouldPass(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldNotContain(MSG);
}
public static void driver() throws IOException {
// Should print the warning
shouldFail(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,java/lang/Thread.onSpinWait"
);
shouldFail(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,java/lang/Thread.onSpinWait,Blackhole"
);
// Should be able to shun the warning
shouldPass(
"-XX:-PrintWarnings",
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,java/lang/Thread.onSpinWait"
);
shouldPass(
"-XX:-PrintWarnings",
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,java/lang/Thread.onSpinWait,Blackhole"
);
}
public static void runner() {
for (int t = 0; t < TRIES; t++) {
run();
}
}
public static void run() {
for (int c = 0; c < CYCLES; c++) {
Thread.onSpinWait();
}
}
}

128
test/hotspot/jtreg/compiler/blackhole/BlackholeExperimentalUnlockTest.java Normal file
View File

@ -0,0 +1,128 @@
/*
* Copyright (c) 2021, Red Hat, 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @library /test/lib /
* @requires vm.flagless
* @run driver compiler.blackhole.BlackholeExperimentalUnlockTest
*/
package compiler.blackhole;
import java.io.IOException;
import java.util.List;
import java.util.Arrays;
import java.util.ArrayList;
import jdk.test.lib.Platform;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
public class BlackholeExperimentalUnlockTest {
private static final int CYCLES = 100_000;
private static final int TRIES = 10;
public static void main(String[] args) throws IOException {
if (args.length == 0) {
driver();
} else {
runner();
}
}
private static final String MSG = "Blackhole compile option is experimental and must be enabled via -XX:+UnlockExperimentalVMOptions";
private static List<String> cmdline(String[] args) {
List<String> r = new ArrayList();
r.add("-Xmx128m");
r.add("-Xbatch");
r.addAll(Arrays.asList(args));
r.add("compiler.blackhole.BlackholeExperimentalUnlockTest");
r.add("run");
return r;
}
public static void shouldFail(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldContain(MSG);
}
public static void shouldPass(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldNotContain(MSG);
}
public static void driver() throws IOException {
// Option is disabled by default, should fail:
shouldFail(
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
shouldFail(
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
// Option should be enabled by UnlockExperimentalVMOptions
shouldPass(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
shouldPass(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
// Should be able to shun the warning
shouldPass(
"-XX:-PrintWarnings",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
shouldPass(
"-XX:-PrintWarnings",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
}
public static void runner() {
for (int t = 0; t < TRIES; t++) {
run();
}
}
public static void run() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_int_1(c);
}
}
}

298
test/hotspot/jtreg/compiler/blackhole/BlackholeIntrinsicTest.java Normal file
View File

@ -0,0 +1,298 @@
/*
* Copyright (c) 2021, Red Hat, 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @library /test/lib /
* @requires vm.flagless
* @run driver compiler.blackhole.BlackholeIntrinsicTest
*/
package compiler.blackhole;
import java.io.IOException;
import java.util.List;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.Map;
import jdk.test.lib.Platform;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
public class BlackholeIntrinsicTest {
private static final Map<String, Runnable> TESTS;
static {
TESTS = new LinkedHashMap<>();
TESTS.put("bh_s_boolean_0", BlackholeIntrinsicTest::test_boolean_0);
TESTS.put("bh_s_byte_0", BlackholeIntrinsicTest::test_byte_0);
TESTS.put("bh_s_char_0", BlackholeIntrinsicTest::test_char_0);
TESTS.put("bh_s_short_0", BlackholeIntrinsicTest::test_short_0);
TESTS.put("bh_s_int_0", BlackholeIntrinsicTest::test_int_0);
TESTS.put("bh_s_float_0", BlackholeIntrinsicTest::test_float_0);
TESTS.put("bh_s_long_0", BlackholeIntrinsicTest::test_long_0);
TESTS.put("bh_s_double_0", BlackholeIntrinsicTest::test_double_0);
TESTS.put("bh_s_Object_0", BlackholeIntrinsicTest::test_Object_0);
TESTS.put("bh_s_boolean_1", BlackholeIntrinsicTest::test_boolean_1);
TESTS.put("bh_s_byte_1", BlackholeIntrinsicTest::test_byte_1);
TESTS.put("bh_s_char_1", BlackholeIntrinsicTest::test_char_1);
TESTS.put("bh_s_short_1", BlackholeIntrinsicTest::test_short_1);
TESTS.put("bh_s_int_1", BlackholeIntrinsicTest::test_int_1);
TESTS.put("bh_s_float_1", BlackholeIntrinsicTest::test_float_1);
TESTS.put("bh_s_long_1", BlackholeIntrinsicTest::test_long_1);
TESTS.put("bh_s_double_1", BlackholeIntrinsicTest::test_double_1);
TESTS.put("bh_s_Object_1", BlackholeIntrinsicTest::test_Object_1);
TESTS.put("bh_s_boolean_2", BlackholeIntrinsicTest::test_boolean_2);
TESTS.put("bh_s_byte_2", BlackholeIntrinsicTest::test_byte_2);
TESTS.put("bh_s_char_2", BlackholeIntrinsicTest::test_char_2);
TESTS.put("bh_s_short_2", BlackholeIntrinsicTest::test_short_2);
TESTS.put("bh_s_int_2", BlackholeIntrinsicTest::test_int_2);
TESTS.put("bh_s_float_2", BlackholeIntrinsicTest::test_float_2);
TESTS.put("bh_s_long_2", BlackholeIntrinsicTest::test_long_2);
TESTS.put("bh_s_double_2", BlackholeIntrinsicTest::test_double_2);
TESTS.put("bh_s_Object_2", BlackholeIntrinsicTest::test_Object_2);
}
private static final int CYCLES = 100_000;
private static final int TRIES = 10;
public static void main(String[] args) throws IOException {
if (args.length == 0) {
driver();
} else {
test(args[0]);
}
}
public static void driver() throws IOException {
for (String test : TESTS.keySet()) {
check(test, "-XX:TieredStopAtLevel=1");
check(test, "-XX:-TieredCompilation");
if (Platform.is64bit()) {
check(test, "-XX:-UseCompressedOops", "-XX:TieredStopAtLevel=1");
check(test, "-XX:-UseCompressedOops", "-XX:-TieredCompilation");
}
}
}
private static void test(String test) {
Runnable r = TESTS.get(test);
if (r == null) {
throw new IllegalArgumentException("Cannot find test " + test);
}
for (int t = 0; t < TRIES; t++) {
r.run();
}
}
public static void check(String test, String... args) throws IOException {
List<String> cmdline = new ArrayList();
cmdline.add("-Xmx128m");
cmdline.add("-Xbatch");
cmdline.add("-XX:+UnlockDiagnosticVMOptions");
cmdline.add("-XX:+AbortVMOnCompilationFailure");
cmdline.add("-XX:+PrintCompilation");
cmdline.add("-XX:+PrintInlining");
cmdline.add("-XX:+UnlockExperimentalVMOptions");
cmdline.add("-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*");
cmdline.addAll(Arrays.asList(args));
cmdline.add("compiler.blackhole.BlackholeIntrinsicTest");
cmdline.add(test);
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmdline);
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.stderrShouldBeEmpty();
output.stdoutShouldMatch("compiler.blackhole.BlackholeTarget::" + test + ".*intrinsic.*");
}
private static void test_boolean_0() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_boolean_0();
}
}
private static void test_byte_0() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_byte_0();
}
}
private static void test_char_0() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_char_0();
}
}
private static void test_short_0() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_short_0();
}
}
private static void test_int_0() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_int_0();
}
}
private static void test_float_0() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_float_0();
}
}
private static void test_long_0() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_long_0();
}
}
private static void test_double_0() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_double_0();
}
}
private static void test_Object_0() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_Object_0();
}
}
private static void test_boolean_1() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_boolean_1((c & 0x1) == 0);
}
}
private static void test_byte_1() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_byte_1((byte)c);
}
}
private static void test_char_1() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_char_1((char)c);
}
}
private static void test_short_1() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_short_1((short)c);
}
}
private static void test_int_1() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_int_1(c);
}
}
private static void test_float_1() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_float_1(c);
}
}
private static void test_long_1() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_long_1(c);
}
}
private static void test_double_1() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_double_1(c);
}
}
private static void test_Object_1() {
for (int c = 0; c < CYCLES; c++) {
Object o = new Object();
BlackholeTarget.bh_s_Object_1(o);
}
}
private static void test_boolean_2() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_boolean_2((c & 0x1) == 0, (c & 0x2) == 0);
}
}
private static void test_byte_2() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_byte_2((byte)c, (byte)(c + 1));
}
}
private static void test_char_2() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_char_2((char)c, (char)(c + 1));
}
}
private static void test_short_2() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_short_2((short)c, (short)(c + 1));
}
}
private static void test_int_2() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_int_2(c, c + 1);
}
}
private static void test_float_2() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_float_2(c, c + 1);
}
}
private static void test_long_2() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_long_2(c, c + 1);
}
}
private static void test_double_2() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_double_2(c, c + 1);
}
}
private static void test_Object_2() {
for (int c = 0; c < CYCLES; c++) {
Object o1 = new Object();
Object o2 = new Object();
BlackholeTarget.bh_s_Object_2(o1, o2);
}
}
}

119
test/hotspot/jtreg/compiler/blackhole/BlackholeNonEmptyWarningTest.java Normal file
View File

@ -0,0 +1,119 @@
/*
* Copyright (c) 2021, Red Hat, 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @library /test/lib /
* @requires vm.flagless
* @run driver compiler.blackhole.BlackholeNonEmptyWarningTest
*/
package compiler.blackhole;
import java.io.IOException;
import java.util.List;
import java.util.Arrays;
import java.util.ArrayList;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
public class BlackholeNonEmptyWarningTest {
private static final int CYCLES = 100_000;
private static final int TRIES = 10;
public static void main(String[] args) throws IOException {
if (args.length == 0) {
driver();
} else {
runner();
}
}
private static final String MSG = "Blackhole compile option only works for empty methods: compiler.blackhole.BlackholeTarget.bh_s_int_1_delegate(I)V";
private static List<String> cmdline(String[] args) {
List<String> r = new ArrayList();
r.add("-Xmx128m");
r.add("-Xbatch");
r.addAll(Arrays.asList(args));
r.add("compiler.blackhole.BlackholeNonEmptyWarningTest");
r.add("run");
return r;
}
public static void shouldFail(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldContain(MSG);
}
public static void shouldPass(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldNotContain(MSG);
}
public static void driver() throws IOException {
// Should print the warning
shouldFail(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
shouldFail(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
// Should be able to shun the warning
shouldPass(
"-XX:-PrintWarnings",
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
shouldPass(
"-XX:-PrintWarnings",
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
}
public static void runner() {
for (int t = 0; t < TRIES; t++) {
run();
}
}
public static void run() {
for (int c = 0; c < CYCLES; c++) {
BlackholeTarget.bh_s_int_1_delegate(c);
}
}
}

120
test/hotspot/jtreg/compiler/blackhole/BlackholeNonStaticWarningTest.java Normal file
View File

@ -0,0 +1,120 @@
/*
* Copyright (c) 2021, Red Hat, 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @library /test/lib /
* @requires vm.flagless
* @run driver compiler.blackhole.BlackholeNonStaticWarningTest
*/
package compiler.blackhole;
import java.io.IOException;
import java.util.List;
import java.util.Arrays;
import java.util.ArrayList;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
public class BlackholeNonStaticWarningTest {
private static final int CYCLES = 100_000;
private static final int TRIES = 10;
public static void main(String[] args) throws IOException {
if (args.length == 0) {
driver();
} else {
runner();
}
}
private static final String MSG = "Blackhole compile option only works for static methods: compiler.blackhole.BlackholeTarget.bh_i_int_0()V";
private static List<String> cmdline(String[] args) {
List<String> r = new ArrayList();
r.add("-Xmx128m");
r.add("-Xbatch");
r.addAll(Arrays.asList(args));
r.add("compiler.blackhole.BlackholeNonStaticWarningTest");
r.add("run");
return r;
}
public static void shouldFail(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldContain(MSG);
}
public static void shouldPass(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldNotContain(MSG);
}
public static void driver() throws IOException {
// Should print the warning
shouldFail(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
shouldFail(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
// Should be able to shun the warning
shouldPass(
"-XX:-PrintWarnings",
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
shouldPass(
"-XX:-PrintWarnings",
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
}
public static void runner() {
for (int t = 0; t < TRIES; t++) {
run();
}
}
public static void run() {
BlackholeTarget t = new BlackholeTarget();
for (int c = 0; c < CYCLES; c++) {
t.bh_i_int_0();
}
}
}

121
test/hotspot/jtreg/compiler/blackhole/BlackholeNonVoidWarningTest.java Normal file
View File

@ -0,0 +1,121 @@
/*
* Copyright (c) 2021, Red Hat, 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* @test
* @library /test/lib /
* @requires vm.flagless
* @run driver compiler.blackhole.BlackholeNonVoidWarningTest
*/
package compiler.blackhole;
import java.io.IOException;
import java.util.List;
import java.util.Arrays;
import java.util.ArrayList;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
public class BlackholeNonVoidWarningTest {
private static final int CYCLES = 100_000;
private static final int TRIES = 10;
public static void main(String[] args) throws IOException {
if (args.length == 0) {
driver();
} else {
runner();
}
}
private static final String MSG = "Blackhole compile option only works for methods with void type: compiler.blackhole.BlackholeTarget.bh_sr_int(I)I";
private static List<String> cmdline(String[] args) {
List<String> r = new ArrayList();
r.add("-Xmx128m");
r.add("-Xbatch");
r.addAll(Arrays.asList(args));
r.add("compiler.blackhole.BlackholeNonVoidWarningTest");
r.add("run");
return r;
}
public static void shouldFail(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldContain(MSG);
}
public static void shouldPass(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
output.shouldNotContain(MSG);
}
public static void driver() throws IOException {
// Should print the warning
shouldFail(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
shouldFail(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
// Should be able to shun the warning
shouldPass(
"-XX:-PrintWarnings",
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=blackhole,compiler/blackhole/BlackholeTarget.bh_*"
);
shouldPass(
"-XX:-PrintWarnings",
"-XX:+UnlockExperimentalVMOptions",
"-XX:CompileCommand=quiet",
"-XX:CompileCommand=option,compiler/blackhole/BlackholeTarget.bh_*,Blackhole"
);
}
public static void runner() {
for (int t = 0; t < TRIES; t++) {
run();
}
}
public static void run() {
for (int c = 0; c < CYCLES; c++) {
if (BlackholeTarget.bh_sr_int(c) != 0) {
throw new AssertionError("Return value error");
}
}
}
}

90
test/hotspot/jtreg/compiler/blackhole/BlackholeTarget.java Normal file
View File

@ -0,0 +1,90 @@
/*
* Copyright (c) 2021, Red Hat, 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package compiler.blackhole;
import java.lang.reflect.*;
public class BlackholeTarget {
public void call_for_null_check() {}
public void bh_i_boolean_0() {}
public void bh_i_byte_0() {}
public void bh_i_short_0() {}
public void bh_i_char_0() {}
public void bh_i_int_0() {}
public void bh_i_float_0() {}
public void bh_i_long_0() {}
public void bh_i_double_0() {}
public void bh_i_Object_0() {}
public static void bh_s_boolean_0() {}
public static void bh_s_byte_0() {}
public static void bh_s_short_0() {}
public static void bh_s_char_0() {}
public static void bh_s_int_0() {}
public static void bh_s_float_0() {}
public static void bh_s_long_0() {}
public static void bh_s_double_0() {}
public static void bh_s_Object_0() {}
public static void bh_s_boolean_1(boolean v) {}
public static void bh_s_byte_1(byte v) {}
public static void bh_s_short_1(short v) {}
public static void bh_s_char_1(char v) {}
public static void bh_s_int_1(int v) {}
public static void bh_s_float_1(float v) {}
public static void bh_s_long_1(long v) {}
public static void bh_s_double_1(double v) {}
public static void bh_s_Object_1(Object v) {}
public static void bh_s_boolean_1_delegate(boolean v) { bh_s_boolean_1(v); }
public static void bh_s_byte_1_delegate(byte v) { bh_s_byte_1(v); }
public static void bh_s_short_1_delegate(short v) { bh_s_short_1(v); }
public static void bh_s_char_1_delegate(char v) { bh_s_char_1(v); }
public static void bh_s_int_1_delegate(int v) { bh_s_int_1(v); }
public static void bh_s_float_1_delegate(float v) { bh_s_float_1(v); }
public static void bh_s_long_1_delegate(long v) { bh_s_long_1(v); }
public static void bh_s_double_1_delegate(double v) { bh_s_double_1(v); }
public static void bh_s_Object_1_delegate(Object v) { bh_s_Object_1(v); }
public static void bh_s_boolean_2(boolean v1, boolean v2) {}
public static void bh_s_byte_2(byte v1, byte v2) {}
public static void bh_s_short_2(short v1, short v2) {}
public static void bh_s_char_2(char v1, char v2) {}
public static void bh_s_int_2(int v1, int v2) {}
public static void bh_s_float_2(float v1, float v2) {}
public static void bh_s_long_2(long v1, long v2) {}
public static void bh_s_double_2(double v1, double v2) {}
public static void bh_s_Object_2(Object v1, Object v2) {}
public static boolean bh_sr_boolean(boolean v) { return false; }
public static byte bh_sr_byte(byte v) { return 0; }
public static short bh_sr_short(short v) { return 0; }
public static char bh_sr_char(char v) { return 0; }
public static int bh_sr_int(int v) { return 0; }
public static float bh_sr_float(float v) { return 0; }
public static long bh_sr_long(long v) { return 0; }
public static double bh_sr_double(double v) { return 0; }
public static Object bh_sr_Object(Object v) { return null; }
}