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src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp

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

3500   for (int idx = 0; idx < 4; idx++) {
3501     lea(tmp2, ExternalAddress(StubRoutines::x86::arrays_hashcode_powers_of_31() + ((8 * idx + 1) * sizeof(jint))));
3502     arrays_hashcode_elvload(vcoef[idx], Address(tmp2, 0), T_INT);
3503     vpmulld(vresult[idx], vresult[idx], vcoef[idx], Assembler::AVX_256bit);
3504   }
3505   // result += vresult.reduceLanes(ADD);
3506   for (int idx = 0; idx < 4; idx++) {
3507     reduceI(Op_AddReductionVI, 256/(sizeof(jint) * 8), result, result, vresult[idx], vtmp[(idx * 2 + 0) % 4], vtmp[(idx * 2 + 1) % 4]);
3508   }
3509 
3510   // } else if (cnt1 < 32) {
3511 
3512   bind(SHORT_UNROLLED_BEGIN);
3513   // int i = 1;
3514   movl(index, 1);
3515   cmpl(index, cnt1);
3516   jcc(Assembler::greaterEqual, SHORT_UNROLLED_LOOP_EXIT);
3517 
3518   // for (; i < cnt1 ; i += 2) {
3519   bind(SHORT_UNROLLED_LOOP_BEGIN);
3520   movl(tmp3, 961);
3521   imull(result, tmp3);
3522   arrays_hashcode_elload(tmp2, Address(ary1, index, Address::times(elsize), -elsize), eltype);

3480     arrays_hashcode_elvload(vtmp[idx], Address(ary1, index, Address::times(elsize), 8 * idx * elsize), eltype);
3481   }
3482   // vresult = vresult * vnext + ary1[index+8*idx:index+8*idx+7];
3483   for (int idx = 0; idx < 4; idx++) {
3484     vpmulld(vresult[idx], vresult[idx], vnext, Assembler::AVX_256bit);
3485     arrays_hashcode_elvcast(vtmp[idx], eltype);
3486     vpaddd(vresult[idx], vresult[idx], vtmp[idx], Assembler::AVX_256bit);
3487   }
3488   // index += 32;
3489   addl(index, 32);
3490   // index < bound;
3491   cmpl(index, bound);
3492   jcc(Assembler::less, UNROLLED_VECTOR_LOOP_BEGIN);
3493   // }
3494 
3495   lea(ary1, Address(ary1, bound, Address::times(elsize)));
3496   subl(cnt1, bound);
3497   // release bound
3498 
3499   // vresult *= IntVector.fromArray(I256, power_of_31_backwards, 1);
3500   lea(tmp2, ExternalAddress(StubRoutines::x86::arrays_hashcode_powers_of_31() + (0 * sizeof(jint))));
3501   for (int idx = 0; idx < 4; idx++) {
3502     arrays_hashcode_elvload(vcoef[idx], Address(tmp2, (int)((8 * idx + 1) * sizeof(jint))), T_INT);

3503     vpmulld(vresult[idx], vresult[idx], vcoef[idx], Assembler::AVX_256bit);
3504   }
3505   // result += vresult.reduceLanes(ADD);
3506   for (int idx = 0; idx < 4; idx++) {
3507     reduceI(Op_AddReductionVI, 256/(sizeof(jint) * 8), result, result, vresult[idx], vtmp[(idx * 2 + 0) % 4], vtmp[(idx * 2 + 1) % 4]);
3508   }
3509 
3510   // } else if (cnt1 < 32) {
3511 
3512   bind(SHORT_UNROLLED_BEGIN);
3513   // int i = 1;
3514   movl(index, 1);
3515   cmpl(index, cnt1);
3516   jcc(Assembler::greaterEqual, SHORT_UNROLLED_LOOP_EXIT);
3517 
3518   // for (; i < cnt1 ; i += 2) {
3519   bind(SHORT_UNROLLED_LOOP_BEGIN);
3520   movl(tmp3, 961);
3521   imull(result, tmp3);
3522   arrays_hashcode_elload(tmp2, Address(ary1, index, Address::times(elsize), -elsize), eltype);
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