8232118: Add JVM option to enable JVMCI compilers in product mode
Reviewed-by: kvn, dholmes
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#ifndef SHARE_JVMCI_JVMCI_GLOBALS_HPP
#define SHARE_JVMCI_JVMCI_GLOBALS_HPP
#include "runtime/flags/jvmFlag.hpp"
class fileStream;
//
// Defines all global flags used by the JVMCI compiler. Only flags that need
// to be accessible to the JVMCI C++ code should be defined here.
//
#define JVMCI_FLAGS(develop, \
develop_pd, \
product, \
product_pd, \
diagnostic, \
diagnostic_pd, \
experimental, \
notproduct, \
range, \
constraint, \
writeable) \
\
experimental(bool, EnableJVMCI, false, \
"Enable JVMCI") \
\
experimental(bool, EnableJVMCIProduct, false, \
"Allow JVMCI to be used in product mode") \
\
experimental(bool, UseJVMCICompiler, false, \
"Use JVMCI as the default compiler") \
\
experimental(bool, JVMCIPrintProperties, false, \
"Prints properties used by the JVMCI compiler and exits") \
\
experimental(bool, BootstrapJVMCI, false, \
"Bootstrap JVMCI before running Java main method. This " \
"initializes the compile queue with a small set of methods " \
"and processes the queue until it is empty. Combining this with " \
"-XX:-TieredCompilation makes JVMCI compile more of itself.") \
\
experimental(bool, EagerJVMCI, false, \
"Force eager JVMCI initialization") \
\
experimental(bool, PrintBootstrap, true, \
"Print JVMCI bootstrap progress and summary") \
\
experimental(intx, JVMCIThreads, 1, \
"Force number of JVMCI compiler threads to use. Ignored if " \
"UseJVMCICompiler is false.") \
range(1, max_jint) \
\
experimental(intx, JVMCIHostThreads, 1, \
"Force number of C1 compiler threads. Ignored if " \
"UseJVMCICompiler is false.") \
range(1, max_jint) \
\
NOT_COMPILER2(product(intx, MaxVectorSize, 64, \
"Max vector size in bytes, " \
"actual size could be less depending on elements type")) \
\
NOT_COMPILER2(product(bool, ReduceInitialCardMarks, true, \
"Defer write barriers of young objects")) \
\
experimental(intx, JVMCITraceLevel, 0, \
"Trace level for JVMCI: " \
"1 means emit a message for each CompilerToVM call," \
"levels greater than 1 provide progressively greater detail") \
\
experimental(intx, JVMCICounterSize, 0, \
"Reserved size for benchmark counters") \
range(0, max_jint) \
\
experimental(bool, JVMCICountersExcludeCompiler, true, \
"Exclude JVMCI compiler threads from benchmark counters") \
\
develop(bool, JVMCIUseFastLocking, true, \
"Use fast inlined locking code") \
\
experimental(intx, JVMCINMethodSizeLimit, (80*K)*wordSize, \
"Maximum size of a compiled method.") \
\
experimental(intx, MethodProfileWidth, 0, \
"Number of methods to record in call profile") \
\
experimental(ccstr, JVMCILibPath, NULL, \
"LD path for loading the JVMCI shared library") \
\
experimental(ccstr, JVMCILibDumpJNIConfig, NULL, \
"Dumps to the given file a description of the classes, fields " \
"and methods the JVMCI shared library must provide") \
\
experimental(bool, UseJVMCINativeLibrary, false, \
"Execute JVMCI Java code from a shared library " \
"instead of loading it from class files and executing it " \
"on the HotSpot heap") \
\
NOT_COMPILER2(diagnostic(bool, UseMultiplyToLenIntrinsic, false, \
"Enables intrinsification of BigInteger.multiplyToLen()")) \
\
NOT_COMPILER2(diagnostic(bool, UseSquareToLenIntrinsic, false, \
"Enables intrinsification of BigInteger.squareToLen()")) \
\
NOT_COMPILER2(diagnostic(bool, UseMulAddIntrinsic, false, \
"Enables intrinsification of BigInteger.mulAdd()")) \
\
NOT_COMPILER2(diagnostic(bool, UseMontgomeryMultiplyIntrinsic, false, \
"Enables intrinsification of BigInteger.montgomeryMultiply()")) \
\
NOT_COMPILER2(diagnostic(bool, UseMontgomerySquareIntrinsic, false, \
"Enables intrinsification of BigInteger.montgomerySquare()"))
// The base name for the shared library containing the JVMCI based compiler
#define JVMCI_SHARED_LIBRARY_NAME "jvmcicompiler"
class JVMCIGlobals {
private:
static fileStream* _jni_config_file;
public:
// Returns true if jvmci flags are consistent. If not consistent,
// an error message describing the inconsistency is printed before
// returning false.
static bool check_jvmci_flags_are_consistent();
// Convert JVMCI experimental flags to product
static bool enable_jvmci_product_mode(JVMFlag::Flags);
// Check and exit VM with error if selected GC is not supported by JVMCI.
static void check_jvmci_supported_gc();
static fileStream* get_jni_config_file() { return _jni_config_file; }
};
#endif // SHARE_JVMCI_JVMCI_GLOBALS_HPP