< prev index next >

src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp

Print this page

3477     arrays_hashcode_elvload(vtmp[idx], Address(ary1, index, Address::times(elsize), 8 * idx * elsize), eltype);
3478   }
3479   // vresult = vresult * vnext + ary1[index+8*idx:index+8*idx+7];
3480   for (int idx = 0; idx < 4; idx++) {
3481     vpmulld(vresult[idx], vresult[idx], vnext, Assembler::AVX_256bit);
3482     arrays_hashcode_elvcast(vtmp[idx], eltype);
3483     vpaddd(vresult[idx], vresult[idx], vtmp[idx], Assembler::AVX_256bit);
3484   }
3485   // index += 32;
3486   addl(index, 32);
3487   // index < bound;
3488   cmpl(index, bound);
3489   jcc(Assembler::less, UNROLLED_VECTOR_LOOP_BEGIN);
3490   // }
3491 
3492   lea(ary1, Address(ary1, bound, Address::times(elsize)));
3493   subl(cnt1, bound);
3494   // release bound
3495 
3496   // vresult *= IntVector.fromArray(I256, power_of_31_backwards, 1);

3497   for (int idx = 0; idx < 4; idx++) {
3498     lea(tmp2, ExternalAddress(StubRoutines::x86::arrays_hashcode_powers_of_31() + ((8 * idx + 1) * sizeof(jint))));
3499     arrays_hashcode_elvload(vcoef[idx], Address(tmp2, 0), T_INT);
3500     vpmulld(vresult[idx], vresult[idx], vcoef[idx], Assembler::AVX_256bit);
3501   }
3502   // result += vresult.reduceLanes(ADD);
3503   for (int idx = 0; idx < 4; idx++) {
3504     reduceI(Op_AddReductionVI, 256/(sizeof(jint) * 8), result, result, vresult[idx], vtmp[(idx * 2 + 0) % 4], vtmp[(idx * 2 + 1) % 4]);
3505   }
3506 
3507   // } else if (cnt1 < 32) {
3508 
3509   bind(SHORT_UNROLLED_BEGIN);
3510   // int i = 1;
3511   movl(index, 1);
3512   cmpl(index, cnt1);
3513   jcc(Assembler::greaterEqual, SHORT_UNROLLED_LOOP_EXIT);
3514 
3515   // for (; i < cnt1 ; i += 2) {
3516   bind(SHORT_UNROLLED_LOOP_BEGIN);
3517   movl(tmp3, 961);
3518   imull(result, tmp3);
3519   arrays_hashcode_elload(tmp2, Address(ary1, index, Address::times(elsize), -elsize), eltype);

3477     arrays_hashcode_elvload(vtmp[idx], Address(ary1, index, Address::times(elsize), 8 * idx * elsize), eltype);
3478   }
3479   // vresult = vresult * vnext + ary1[index+8*idx:index+8*idx+7];
3480   for (int idx = 0; idx < 4; idx++) {
3481     vpmulld(vresult[idx], vresult[idx], vnext, Assembler::AVX_256bit);
3482     arrays_hashcode_elvcast(vtmp[idx], eltype);
3483     vpaddd(vresult[idx], vresult[idx], vtmp[idx], Assembler::AVX_256bit);
3484   }
3485   // index += 32;
3486   addl(index, 32);
3487   // index < bound;
3488   cmpl(index, bound);
3489   jcc(Assembler::less, UNROLLED_VECTOR_LOOP_BEGIN);
3490   // }
3491 
3492   lea(ary1, Address(ary1, bound, Address::times(elsize)));
3493   subl(cnt1, bound);
3494   // release bound
3495 
3496   // vresult *= IntVector.fromArray(I256, power_of_31_backwards, 1);
3497   lea(tmp2, ExternalAddress(StubRoutines::x86::arrays_hashcode_powers_of_31() + (0 * sizeof(jint))));
3498   for (int idx = 0; idx < 4; idx++) {
3499     arrays_hashcode_elvload(vcoef[idx], Address(tmp2, (int)((8 * idx + 1) * sizeof(jint))), T_INT);

3500     vpmulld(vresult[idx], vresult[idx], vcoef[idx], Assembler::AVX_256bit);
3501   }
3502   // result += vresult.reduceLanes(ADD);
3503   for (int idx = 0; idx < 4; idx++) {
3504     reduceI(Op_AddReductionVI, 256/(sizeof(jint) * 8), result, result, vresult[idx], vtmp[(idx * 2 + 0) % 4], vtmp[(idx * 2 + 1) % 4]);
3505   }
3506 
3507   // } else if (cnt1 < 32) {
3508 
3509   bind(SHORT_UNROLLED_BEGIN);
3510   // int i = 1;
3511   movl(index, 1);
3512   cmpl(index, cnt1);
3513   jcc(Assembler::greaterEqual, SHORT_UNROLLED_LOOP_EXIT);
3514 
3515   // for (; i < cnt1 ; i += 2) {
3516   bind(SHORT_UNROLLED_LOOP_BEGIN);
3517   movl(tmp3, 961);
3518   imull(result, tmp3);
3519   arrays_hashcode_elload(tmp2, Address(ary1, index, Address::times(elsize), -elsize), eltype);
< prev index next >