174 if (!FLAG_IS_DEFAULT(UseAESIntrinsics))
175 warning("AES intrinsics are not available on this CPU");
176 FLAG_SET_DEFAULT(UseAESIntrinsics, false);
177 }
178
179 if (UseGHASHIntrinsics) {
180 warning("GHASH intrinsics are not available on this CPU");
181 FLAG_SET_DEFAULT(UseGHASHIntrinsics, false);
182 }
183
184 if (UseSHA) {
185 warning("SHA instructions are not available on this CPU");
186 FLAG_SET_DEFAULT(UseSHA, false);
187 }
188 if (UseSHA1Intrinsics || UseSHA256Intrinsics || UseSHA512Intrinsics) {
189 warning("SHA intrinsics are not available on this CPU");
190 FLAG_SET_DEFAULT(UseSHA1Intrinsics, false);
191 FLAG_SET_DEFAULT(UseSHA256Intrinsics, false);
192 FLAG_SET_DEFAULT(UseSHA512Intrinsics, false);
193 }
194 // Adjust RTM (Restricted Transactional Memory) flags.
195 if (!has_tcheck() && UseRTMLocking) {
196 // Can't continue because UseRTMLocking affects UseBiasedLocking flag
197 // setting during arguments processing. See use_biased_locking().
198 // VM_Version_init() is executed after UseBiasedLocking is used
199 // in Thread::allocate().
200 vm_exit_during_initialization("RTM instructions are not available on this CPU");
201 }
202
203 if (UseRTMLocking) {
204 #if INCLUDE_RTM_OPT
205 if (!UnlockExperimentalVMOptions) {
206 vm_exit_during_initialization("UseRTMLocking is only available as experimental option on this platform. "
207 "It must be enabled via -XX:+UnlockExperimentalVMOptions flag.");
208 } else {
209 warning("UseRTMLocking is only available as experimental option on this platform.");
210 }
211 if (!FLAG_IS_CMDLINE(UseRTMLocking)) {
212 // RTM locking should be used only for applications with
213 // high lock contention. For now we do not use it by default.
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174 if (!FLAG_IS_DEFAULT(UseAESIntrinsics))
175 warning("AES intrinsics are not available on this CPU");
176 FLAG_SET_DEFAULT(UseAESIntrinsics, false);
177 }
178
179 if (UseGHASHIntrinsics) {
180 warning("GHASH intrinsics are not available on this CPU");
181 FLAG_SET_DEFAULT(UseGHASHIntrinsics, false);
182 }
183
184 if (UseSHA) {
185 warning("SHA instructions are not available on this CPU");
186 FLAG_SET_DEFAULT(UseSHA, false);
187 }
188 if (UseSHA1Intrinsics || UseSHA256Intrinsics || UseSHA512Intrinsics) {
189 warning("SHA intrinsics are not available on this CPU");
190 FLAG_SET_DEFAULT(UseSHA1Intrinsics, false);
191 FLAG_SET_DEFAULT(UseSHA256Intrinsics, false);
192 FLAG_SET_DEFAULT(UseSHA512Intrinsics, false);
193 }
194
195 if (UseCRC32CIntrinsics) {
196 if (!FLAG_IS_DEFAULT(UseCRC32CIntrinsics))
197 warning("CRC32C intrinsics are not available on this CPU");
198 FLAG_SET_DEFAULT(UseCRC32CIntrinsics, false);
199 }
200
201 // Adjust RTM (Restricted Transactional Memory) flags.
202 if (!has_tcheck() && UseRTMLocking) {
203 // Can't continue because UseRTMLocking affects UseBiasedLocking flag
204 // setting during arguments processing. See use_biased_locking().
205 // VM_Version_init() is executed after UseBiasedLocking is used
206 // in Thread::allocate().
207 vm_exit_during_initialization("RTM instructions are not available on this CPU");
208 }
209
210 if (UseRTMLocking) {
211 #if INCLUDE_RTM_OPT
212 if (!UnlockExperimentalVMOptions) {
213 vm_exit_during_initialization("UseRTMLocking is only available as experimental option on this platform. "
214 "It must be enabled via -XX:+UnlockExperimentalVMOptions flag.");
215 } else {
216 warning("UseRTMLocking is only available as experimental option on this platform.");
217 }
218 if (!FLAG_IS_CMDLINE(UseRTMLocking)) {
219 // RTM locking should be used only for applications with
220 // high lock contention. For now we do not use it by default.
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