Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/x86/vm/templateTable_x86_32.cpp
src/cpu/x86/vm/templateTable_x86_32.cpp
- changeset 2697
- 09f96c3ff1ad
- parent 2639
- 8033953d67ff
- child 2698
- 38fea01eb669
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replaced
| 2696:9d343b8113db | 2697:09f96c3ff1ad |
|---|---|
| 21 * questions. | 21 * questions. |
| 22 * | 22 * |
| 23 */ | 23 */ |
| 24 | 24 |
| 25 #include "precompiled.hpp" | 25 #include "precompiled.hpp" |
| 26 #include "asm/assembler.hpp" | |
| 26 #include "interpreter/interpreter.hpp" | 27 #include "interpreter/interpreter.hpp" |
| 27 #include "interpreter/interpreterRuntime.hpp" | 28 #include "interpreter/interpreterRuntime.hpp" |
| 28 #include "interpreter/templateTable.hpp" | 29 #include "interpreter/templateTable.hpp" |
| 29 #include "memory/universe.inline.hpp" | 30 #include "memory/universe.inline.hpp" |
| 30 #include "oops/methodDataOop.hpp" | 31 #include "oops/methodDataOop.hpp" |
| 1937 // } | 1938 // } |
| 1938 // Convert array[h].match to native byte-ordering before compare | 1939 // Convert array[h].match to native byte-ordering before compare |
| 1939 __ movl(temp, Address(array, h, Address::times_8, 0*wordSize)); | 1940 __ movl(temp, Address(array, h, Address::times_8, 0*wordSize)); |
| 1940 __ bswapl(temp); | 1941 __ bswapl(temp); |
| 1941 __ cmpl(key, temp); | 1942 __ cmpl(key, temp); |
| 1942 if (VM_Version::supports_cmov()) { | 1943 // j = h if (key < array[h].fast_match()) |
| 1943 __ cmovl(Assembler::less , j, h); // j = h if (key < array[h].fast_match()) | 1944 __ cmov32(Assembler::less , j, h); |
| 1944 __ cmovl(Assembler::greaterEqual, i, h); // i = h if (key >= array[h].fast_match()) | 1945 // i = h if (key >= array[h].fast_match()) |
| 1945 } else { | 1946 __ cmov32(Assembler::greaterEqual, i, h); |
| 1946 Label set_i, end_of_if; | |
| 1947 __ jccb(Assembler::greaterEqual, set_i); // { | |
| 1948 __ mov(j, h); // j = h; | |
| 1949 __ jmp(end_of_if); // } | |
| 1950 __ bind(set_i); // else { | |
| 1951 __ mov(i, h); // i = h; | |
| 1952 __ bind(end_of_if); // } | |
| 1953 } | |
| 1954 // while (i+1 < j) | 1947 // while (i+1 < j) |
| 1955 __ bind(entry); | 1948 __ bind(entry); |
| 1956 __ leal(h, Address(i, 1)); // i+1 | 1949 __ leal(h, Address(i, 1)); // i+1 |
| 1957 __ cmpl(h, j); // i+1 < j | 1950 __ cmpl(h, j); // i+1 < j |
| 1958 __ jcc(Assembler::less, loop); | 1951 __ jcc(Assembler::less, loop); |
| 3476 // initialize entry pointer | 3469 // initialize entry pointer |
| 3477 __ xorl(rdx, rdx); // points to free slot or NULL | 3470 __ xorl(rdx, rdx); // points to free slot or NULL |
| 3478 | 3471 |
| 3479 // find a free slot in the monitor block (result in rdx) | 3472 // find a free slot in the monitor block (result in rdx) |
| 3480 { Label entry, loop, exit; | 3473 { Label entry, loop, exit; |
| 3481 __ movptr(rcx, monitor_block_top); // points to current entry, starting with top-most entry | 3474 __ movptr(rcx, monitor_block_top); // points to current entry, starting with top-most entry |
| 3482 __ lea(rbx, monitor_block_bot); // points to word before bottom of monitor block | 3475 |
| 3476 __ lea(rbx, monitor_block_bot); // points to word before bottom of monitor block | |
| 3483 __ jmpb(entry); | 3477 __ jmpb(entry); |
| 3484 | 3478 |
| 3485 __ bind(loop); | 3479 __ bind(loop); |
| 3486 __ cmpptr(Address(rcx, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD); // check if current entry is used | 3480 __ cmpptr(Address(rcx, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD); // check if current entry is used |
| 3487 | 3481 __ cmovptr(Assembler::equal, rdx, rcx); // if not used then remember entry in rdx |
| 3488 // TODO - need new func here - kbt | |
| 3489 if (VM_Version::supports_cmov()) { | |
| 3490 __ cmov(Assembler::equal, rdx, rcx); // if not used then remember entry in rdx | |
| 3491 } else { | |
| 3492 Label L; | |
| 3493 __ jccb(Assembler::notEqual, L); | |
| 3494 __ mov(rdx, rcx); // if not used then remember entry in rdx | |
| 3495 __ bind(L); | |
| 3496 } | |
| 3497 __ cmpptr(rax, Address(rcx, BasicObjectLock::obj_offset_in_bytes())); // check if current entry is for same object | 3482 __ cmpptr(rax, Address(rcx, BasicObjectLock::obj_offset_in_bytes())); // check if current entry is for same object |
| 3498 __ jccb(Assembler::equal, exit); // if same object then stop searching | 3483 __ jccb(Assembler::equal, exit); // if same object then stop searching |
| 3499 __ addptr(rcx, entry_size); // otherwise advance to next entry | 3484 __ addptr(rcx, entry_size); // otherwise advance to next entry |
| 3500 __ bind(entry); | 3485 __ bind(entry); |
| 3501 __ cmpptr(rcx, rbx); // check if bottom reached | 3486 __ cmpptr(rcx, rbx); // check if bottom reached |
