Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/x86/vm/templateInterpreter_x86_64.cpp
src/cpu/x86/vm/templateInterpreter_x86_64.cpp
- changeset 5544
- 6725044c5725
- parent 5496
- ca0165daa6ec
- parent 5538
- afbe18ae0905
- child 5921
- ce0cc25bc5e2
equal
deleted
inserted
replaced
| 5526:37165c3618a3 | 5544:6725044c5725 |
|---|---|
| 847 address InterpreterGenerator::generate_CRC32_update_entry() { | 847 address InterpreterGenerator::generate_CRC32_update_entry() { |
| 848 if (UseCRC32Intrinsics) { | 848 if (UseCRC32Intrinsics) { |
| 849 address entry = __ pc(); | 849 address entry = __ pc(); |
| 850 | 850 |
| 851 // rbx,: Method* | 851 // rbx,: Method* |
| 852 // rsi: senderSP must preserved for slow path, set SP to it on fast path | 852 // r13: senderSP must preserved for slow path, set SP to it on fast path |
| 853 // rdx: scratch | 853 // c_rarg0: scratch (rdi on non-Win64, rcx on Win64) |
| 854 // rdi: scratch | 854 // c_rarg1: scratch (rsi on non-Win64, rdx on Win64) |
| 855 | 855 |
| 856 Label slow_path; | 856 Label slow_path; |
| 857 // If we need a safepoint check, generate full interpreter entry. | 857 // If we need a safepoint check, generate full interpreter entry. |
| 858 ExternalAddress state(SafepointSynchronize::address_of_state()); | 858 ExternalAddress state(SafepointSynchronize::address_of_state()); |
| 859 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | 859 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
| 863 // We don't generate local frame and don't align stack because | 863 // We don't generate local frame and don't align stack because |
| 864 // we call stub code and there is no safepoint on this path. | 864 // we call stub code and there is no safepoint on this path. |
| 865 | 865 |
| 866 // Load parameters | 866 // Load parameters |
| 867 const Register crc = rax; // crc | 867 const Register crc = rax; // crc |
| 868 const Register val = rdx; // source java byte value | 868 const Register val = c_rarg0; // source java byte value |
| 869 const Register tbl = rdi; // scratch | 869 const Register tbl = c_rarg1; // scratch |
| 870 | 870 |
| 871 // Arguments are reversed on java expression stack | 871 // Arguments are reversed on java expression stack |
| 872 __ movl(val, Address(rsp, wordSize)); // byte value | 872 __ movl(val, Address(rsp, wordSize)); // byte value |
| 873 __ movl(crc, Address(rsp, 2*wordSize)); // Initial CRC | 873 __ movl(crc, Address(rsp, 2*wordSize)); // Initial CRC |
| 874 | 874 |
| 878 __ notl(crc); // ~crc | 878 __ notl(crc); // ~crc |
| 879 // result in rax | 879 // result in rax |
| 880 | 880 |
| 881 // _areturn | 881 // _areturn |
| 882 __ pop(rdi); // get return address | 882 __ pop(rdi); // get return address |
| 883 __ mov(rsp, rsi); // set sp to sender sp | 883 __ mov(rsp, r13); // set sp to sender sp |
| 884 __ jmp(rdi); | 884 __ jmp(rdi); |
| 885 | 885 |
| 886 // generate a vanilla native entry as the slow path | 886 // generate a vanilla native entry as the slow path |
| 887 __ bind(slow_path); | 887 __ bind(slow_path); |
| 888 | 888 |
| 917 | 917 |
| 918 // Load parameters | 918 // Load parameters |
| 919 const Register crc = c_rarg0; // crc | 919 const Register crc = c_rarg0; // crc |
| 920 const Register buf = c_rarg1; // source java byte array address | 920 const Register buf = c_rarg1; // source java byte array address |
| 921 const Register len = c_rarg2; // length | 921 const Register len = c_rarg2; // length |
| 922 const Register off = len; // offset (never overlaps with 'len') | |
| 922 | 923 |
| 923 // Arguments are reversed on java expression stack | 924 // Arguments are reversed on java expression stack |
| 924 __ movl(len, Address(rsp, wordSize)); // Length | |
| 925 // Calculate address of start element | 925 // Calculate address of start element |
| 926 if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) { | 926 if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) { |
| 927 __ movptr(buf, Address(rsp, 3*wordSize)); // long buf | 927 __ movptr(buf, Address(rsp, 3*wordSize)); // long buf |
| 928 __ addptr(buf, Address(rsp, 2*wordSize)); // + offset | 928 __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset |
| 929 __ addq(buf, off); // + offset | |
| 929 __ movl(crc, Address(rsp, 5*wordSize)); // Initial CRC | 930 __ movl(crc, Address(rsp, 5*wordSize)); // Initial CRC |
| 930 } else { | 931 } else { |
| 931 __ movptr(buf, Address(rsp, 3*wordSize)); // byte[] array | 932 __ movptr(buf, Address(rsp, 3*wordSize)); // byte[] array |
| 932 __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size | 933 __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size |
| 933 __ addptr(buf, Address(rsp, 2*wordSize)); // + offset | 934 __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset |
| 935 __ addq(buf, off); // + offset | |
| 934 __ movl(crc, Address(rsp, 4*wordSize)); // Initial CRC | 936 __ movl(crc, Address(rsp, 4*wordSize)); // Initial CRC |
| 935 } | 937 } |
| 938 // Can now load 'len' since we're finished with 'off' | |
| 939 __ movl(len, Address(rsp, wordSize)); // Length | |
| 936 | 940 |
| 937 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32()), crc, buf, len); | 941 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32()), crc, buf, len); |
| 938 // result in rax | 942 // result in rax |
| 939 | 943 |
| 940 // _areturn | 944 // _areturn |
