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annotate src/share/vm/graal/graalCompilerToGPU.cpp @ 11485:49bb1bc983c6

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Implement several missing PTX codegen features; return value capture and method args passing of java method executed on GPU.
author bharadwaj
date Fri, 30 Aug 2013 16:39:05 -0400
parents 001c41b01d13
children 91e5f927af63
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 #include "precompiled.hpp"
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25
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26 #include "graal/graalCompiler.hpp"
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27 #include "graal/graalEnv.hpp"
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28 #include "graal/graalJavaAccess.hpp"
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29 #include "runtime/gpu.hpp"
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30 #include "runtime/javaCalls.hpp"
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31 # include "ptx/vm/kernelArguments.hpp"
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32
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33 // Entry to native method implementation that transitions current thread to '_thread_in_vm'.
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34 #define C2V_VMENTRY(result_type, name, signature) \
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35 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
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36 TRACE_graal_3("CompilerToGPU::" #name); \
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37 GRAAL_VM_ENTRY_MARK; \
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38
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39 // Entry to native method implementation that calls a JNI function
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40 // and hence cannot transition current thread to '_thread_in_vm'.
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41 #define C2V_ENTRY(result_type, name, signature) \
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42 JNIEXPORT result_type JNICALL c2v_ ## name signature { \
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43 TRACE_graal_3("CompilerToGPU::" #name); \
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44
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45 #define C2V_END }
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46
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47
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48 C2V_ENTRY(jlong, generateKernel, (JNIEnv *env, jobject, jbyteArray code, jstring name))
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49 if (gpu::is_available() == false || gpu::has_gpu_linkage() == false && gpu::is_initialized()) {
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50 tty->print_cr("generateKernel - not available / no linkage / not initialized");
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51 return 0;
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52 }
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53 jboolean is_copy;
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54 jbyte *bytes = env->GetByteArrayElements(code, &is_copy);
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55 jint len = env->GetArrayLength(code);
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56 const char *namestr = env->GetStringUTFChars(name, &is_copy);
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57 void *kernel = gpu::generate_kernel((unsigned char *)bytes, len, namestr);
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58 if (kernel == NULL) {
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59 tty->print_cr("[CUDA] *** Error: Failed to compile kernel");
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60 }
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61 else if (TraceGPUInteraction) {
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62 tty->print_cr("[CUDA] Generated kernel");
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63 }
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64 env->ReleaseByteArrayElements(code, bytes, 0);
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65 env->ReleaseStringUTFChars(name, namestr);
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66
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67 return (jlong)kernel;
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68 C2V_END
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69
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70 C2V_VMENTRY(jobject, executeExternalMethodVarargs, (JNIEnv *env, jobject, jobject args, jobject hotspotInstalledCode))
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71 ResourceMark rm;
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72 HandleMark hm;
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73
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74 if (gpu::is_available() == false || gpu::has_gpu_linkage() == false && gpu::is_initialized()) {
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75 tty->print_cr("executeExternalMethodVarargs - not available / no linkage / not initialized");
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76 return NULL;
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77 }
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78 jlong nmethodValue = HotSpotInstalledCode::codeBlob(hotspotInstalledCode);
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79 nmethod* nm = (nmethod*) (address) nmethodValue;
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80 methodHandle mh = nm->method();
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81 Symbol* signature = mh->signature();
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82
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83 // start value is the kernel
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84 jlong startValue = HotSpotInstalledCode::codeStart(hotspotInstalledCode);
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85
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86 PTXKernelArguments ptxka(signature, (arrayOop) JNIHandles::resolve(args), mh->is_static());
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87 JavaValue result(ptxka.get_ret_type());
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88 if (!gpu::execute_kernel((address)startValue, ptxka, result)) {
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89 return NULL;
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90 }
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91
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92 if (ptxka.get_ret_type() == T_VOID) {
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93 return NULL;
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94 } else if (ptxka.get_ret_type() == T_OBJECT || ptxka.get_ret_type() == T_ARRAY) {
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95 return JNIHandles::make_local((oop) result.get_jobject());
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96 } else {
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97 oop o = java_lang_boxing_object::create(ptxka.get_ret_type(), (jvalue *) result.get_value_addr(), CHECK_NULL);
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98 if (TraceGPUInteraction) {
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99 tty->print_cr("GPU execution returned %d", result.get_jint());
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100 }
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101 return JNIHandles::make_local(o);
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102 }
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103
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104 C2V_END
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105
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106 C2V_VMENTRY(jboolean, deviceInit, (JNIEnv *env, jobject))
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107 if (gpu::is_available() == false || gpu::has_gpu_linkage() == false) {
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108 tty->print_cr("deviceInit - not available / no linkage");
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109 return false;
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110 }
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111 if (gpu::is_initialized()) {
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112 tty->print_cr("deviceInit - already initialized");
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113 return true;
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114 }
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115 gpu::initialize_gpu();
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116 return gpu::is_initialized();
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117 C2V_END
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118
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119 C2V_VMENTRY(jboolean, deviceDetach, (JNIEnv *env, jobject))
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120 return true;
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121 C2V_END
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122
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123
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124 #define CC (char*) /*cast a literal from (const char*)*/
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125 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
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126
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127 #define RESOLVED_TYPE "Lcom/oracle/graal/api/meta/ResolvedJavaType;"
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128 #define TYPE "Lcom/oracle/graal/api/meta/JavaType;"
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129 #define METHOD "Lcom/oracle/graal/api/meta/JavaMethod;"
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130 #define FIELD "Lcom/oracle/graal/api/meta/JavaField;"
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131 #define SIGNATURE "Lcom/oracle/graal/api/meta/Signature;"
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132 #define CONSTANT_POOL "Lcom/oracle/graal/api/meta/ConstantPool;"
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133 #define CONSTANT "Lcom/oracle/graal/api/meta/Constant;"
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134 #define KIND "Lcom/oracle/graal/api/meta/Kind;"
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135 #define LOCAL "Lcom/oracle/graal/api/meta/Local;"
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136 #define RUNTIME_CALL "Lcom/oracle/graal/api/code/RuntimeCall;"
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137 #define EXCEPTION_HANDLERS "[Lcom/oracle/graal/api/meta/ExceptionHandler;"
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138 #define REFLECT_METHOD "Ljava/lang/reflect/Method;"
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139 #define REFLECT_CONSTRUCTOR "Ljava/lang/reflect/Constructor;"
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140 #define REFLECT_FIELD "Ljava/lang/reflect/Field;"
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141 #define STRING "Ljava/lang/String;"
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142 #define OBJECT "Ljava/lang/Object;"
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143 #define CLASS "Ljava/lang/Class;"
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144 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;"
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145 #define HS_RESOLVED_TYPE "Lcom/oracle/graal/hotspot/meta/HotSpotResolvedObjectType;"
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146 #define HS_RESOLVED_JAVA_TYPE "Lcom/oracle/graal/hotspot/meta/HotSpotResolvedJavaType;"
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147 #define HS_RESOLVED_METHOD "Lcom/oracle/graal/hotspot/meta/HotSpotResolvedJavaMethod;"
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148 #define HS_RESOLVED_FIELD "Lcom/oracle/graal/hotspot/meta/HotSpotResolvedJavaField;"
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149 #define HS_COMPILED_CODE "Lcom/oracle/graal/hotspot/HotSpotCompiledCode;"
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150 #define HS_CONFIG "Lcom/oracle/graal/hotspot/HotSpotVMConfig;"
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151 #define HS_METHOD "Lcom/oracle/graal/hotspot/meta/HotSpotMethod;"
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152 #define HS_INSTALLED_CODE "Lcom/oracle/graal/hotspot/meta/HotSpotInstalledCode;"
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153 #define METHOD_DATA "Lcom/oracle/graal/hotspot/meta/HotSpotMethodData;"
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154 #define METASPACE_METHOD "J"
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155 #define METASPACE_METHOD_DATA "J"
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156 #define NMETHOD "J"
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157 #define GPUSPACE_METHOD "J"
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158
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159 JNINativeMethod CompilerToGPU_methods[] = {
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160 {CC"generateKernel", CC"([B" STRING ")"GPUSPACE_METHOD, FN_PTR(generateKernel)},
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161 {CC"deviceInit", CC"()Z", FN_PTR(deviceInit)},
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162 {CC"deviceDetach", CC"()Z", FN_PTR(deviceDetach)},
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163 {CC"executeExternalMethodVarargs", CC"(["OBJECT HS_INSTALLED_CODE")"OBJECT, FN_PTR(executeExternalMethodVarargs)},
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164 };
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165
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166 int CompilerToGPU_methods_count() {
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167 return sizeof(CompilerToGPU_methods) / sizeof(JNINativeMethod);
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168 }
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169