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comparison src/cpu/x86/vm/x86_32.ad @ 10408:836a62f43af9

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Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
author Doug Simon <doug.simon@oracle.com>
date Wed, 19 Jun 2013 10:45:56 +0200
parents e10e43e58e92
children 190899198332 c9ccd7b85f20 6a936747b569
comparison
equal deleted inserted replaced
10086:e0fb8a213650 10408:836a62f43af9
1255 return 4; 1255 return 4;
1256 } 1256 }
1257 } 1257 }
1258 1258
1259 //============================================================================= 1259 //=============================================================================
1260
1261 // emit call stub, compiled java to interpreter
1262 void emit_java_to_interp(CodeBuffer &cbuf ) {
1263 // Stub is fixed up when the corresponding call is converted from calling
1264 // compiled code to calling interpreted code.
1265 // mov rbx,0
1266 // jmp -1
1267
1268 address mark = cbuf.insts_mark(); // get mark within main instrs section
1269
1270 // Note that the code buffer's insts_mark is always relative to insts.
1271 // That's why we must use the macroassembler to generate a stub.
1272 MacroAssembler _masm(&cbuf);
1273
1274 address base =
1275 __ start_a_stub(Compile::MAX_stubs_size);
1276 if (base == NULL) return; // CodeBuffer::expand failed
1277 // static stub relocation stores the instruction address of the call
1278 __ relocate(static_stub_Relocation::spec(mark), RELOC_IMM32);
1279 // static stub relocation also tags the Method* in the code-stream.
1280 __ mov_metadata(rbx, (Metadata*)NULL); // method is zapped till fixup time
1281 // This is recognized as unresolved by relocs/nativeInst/ic code
1282 __ jump(RuntimeAddress(__ pc()));
1283
1284 __ end_a_stub();
1285 // Update current stubs pointer and restore insts_end.
1286 }
1287 // size of call stub, compiled java to interpretor
1288 uint size_java_to_interp() {
1289 return 10; // movl; jmp
1290 }
1291 // relocation entries for call stub, compiled java to interpretor
1292 uint reloc_java_to_interp() {
1293 return 4; // 3 in emit_java_to_interp + 1 in Java_Static_Call
1294 }
1295
1296 //=============================================================================
1297 #ifndef PRODUCT 1260 #ifndef PRODUCT
1298 void MachUEPNode::format( PhaseRegAlloc *ra_, outputStream* st ) const { 1261 void MachUEPNode::format( PhaseRegAlloc *ra_, outputStream* st ) const {
1299 st->print_cr( "CMP EAX,[ECX+4]\t# Inline cache check"); 1262 st->print_cr( "CMP EAX,[ECX+4]\t# Inline cache check");
1300 st->print_cr("\tJNE SharedRuntime::handle_ic_miss_stub"); 1263 st->print_cr("\tJNE SharedRuntime::handle_ic_miss_stub");
1301 st->print_cr("\tNOP"); 1264 st->print_cr("\tNOP");
1907 opt_virtual_call_Relocation::spec(), RELOC_IMM32 ); 1870 opt_virtual_call_Relocation::spec(), RELOC_IMM32 );
1908 } else { 1871 } else {
1909 emit_d32_reloc(cbuf, ($meth$$method - (int)(cbuf.insts_end()) - 4), 1872 emit_d32_reloc(cbuf, ($meth$$method - (int)(cbuf.insts_end()) - 4),
1910 static_call_Relocation::spec(), RELOC_IMM32 ); 1873 static_call_Relocation::spec(), RELOC_IMM32 );
1911 } 1874 }
1912 if (_method) { // Emit stub for static call 1875 if (_method) { // Emit stub for static call.
1913 emit_java_to_interp(cbuf); 1876 CompiledStaticCall::emit_to_interp_stub(cbuf);
1914 } 1877 }
1915 %} 1878 %}
1916 1879
1917 enc_class Java_Dynamic_Call (method meth) %{ // JAVA DYNAMIC CALL 1880 enc_class Java_Dynamic_Call (method meth) %{ // JAVA DYNAMIC CALL
1918 MacroAssembler _masm(&cbuf); 1881 MacroAssembler _masm(&cbuf);