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src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp

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3671     arrays_hashcode_elvload(vtmp[idx], Address(ary1, index, Address::times(elsize), 8 * idx * elsize), eltype);
3672   }
3673   // vresult = vresult * vnext + ary1[index+8*idx:index+8*idx+7];
3674   for (int idx = 0; idx < 4; idx++) {
3675     vpmulld(vresult[idx], vresult[idx], vnext, Assembler::AVX_256bit);
3676     arrays_hashcode_elvcast(vtmp[idx], eltype);
3677     vpaddd(vresult[idx], vresult[idx], vtmp[idx], Assembler::AVX_256bit);
3678   }
3679   // index += 32;
3680   addl(index, 32);
3681   // index < bound;
3682   cmpl(index, bound);
3683   jcc(Assembler::less, UNROLLED_VECTOR_LOOP_BEGIN);
3684   // }
3685 
3686   lea(ary1, Address(ary1, bound, Address::times(elsize)));
3687   subl(cnt1, bound);
3688   // release bound
3689 
3690   // vresult *= IntVector.fromArray(I256, power_of_31_backwards, 1);

3691   for (int idx = 0; idx < 4; idx++) {
3692     lea(tmp2, ExternalAddress(StubRoutines::x86::arrays_hashcode_powers_of_31() + ((8 * idx + 1) * sizeof(jint))));
3693     arrays_hashcode_elvload(vcoef[idx], Address(tmp2, 0), T_INT);
3694     vpmulld(vresult[idx], vresult[idx], vcoef[idx], Assembler::AVX_256bit);
3695   }
3696   // result += vresult.reduceLanes(ADD);
3697   for (int idx = 0; idx < 4; idx++) {
3698     reduceI(Op_AddReductionVI, 256/(sizeof(jint) * 8), result, result, vresult[idx], vtmp[(idx * 2 + 0) % 4], vtmp[(idx * 2 + 1) % 4]);
3699   }
3700 
3701   // } else if (cnt1 < 32) {
3702 
3703   bind(SHORT_UNROLLED_BEGIN);
3704   // int i = 1;
3705   movl(index, 1);
3706   cmpl(index, cnt1);
3707   jcc(Assembler::greaterEqual, SHORT_UNROLLED_LOOP_EXIT);
3708 
3709   // for (; i < cnt1 ; i += 2) {
3710   bind(SHORT_UNROLLED_LOOP_BEGIN);
3711   movl(tmp3, 961);
3712   imull(result, tmp3);
3713   arrays_hashcode_elload(tmp2, Address(ary1, index, Address::times(elsize), -elsize), eltype);

3671     arrays_hashcode_elvload(vtmp[idx], Address(ary1, index, Address::times(elsize), 8 * idx * elsize), eltype);
3672   }
3673   // vresult = vresult * vnext + ary1[index+8*idx:index+8*idx+7];
3674   for (int idx = 0; idx < 4; idx++) {
3675     vpmulld(vresult[idx], vresult[idx], vnext, Assembler::AVX_256bit);
3676     arrays_hashcode_elvcast(vtmp[idx], eltype);
3677     vpaddd(vresult[idx], vresult[idx], vtmp[idx], Assembler::AVX_256bit);
3678   }
3679   // index += 32;
3680   addl(index, 32);
3681   // index < bound;
3682   cmpl(index, bound);
3683   jcc(Assembler::less, UNROLLED_VECTOR_LOOP_BEGIN);
3684   // }
3685 
3686   lea(ary1, Address(ary1, bound, Address::times(elsize)));
3687   subl(cnt1, bound);
3688   // release bound
3689 
3690   // vresult *= IntVector.fromArray(I256, power_of_31_backwards, 1);
3691   lea(tmp2, ExternalAddress(StubRoutines::x86::arrays_hashcode_powers_of_31() + (0 * sizeof(jint))));
3692   for (int idx = 0; idx < 4; idx++) {
3693     arrays_hashcode_elvload(vcoef[idx], Address(tmp2, (int)((8 * idx + 1) * sizeof(jint))), T_INT);

3694     vpmulld(vresult[idx], vresult[idx], vcoef[idx], Assembler::AVX_256bit);
3695   }
3696   // result += vresult.reduceLanes(ADD);
3697   for (int idx = 0; idx < 4; idx++) {
3698     reduceI(Op_AddReductionVI, 256/(sizeof(jint) * 8), result, result, vresult[idx], vtmp[(idx * 2 + 0) % 4], vtmp[(idx * 2 + 1) % 4]);
3699   }
3700 
3701   // } else if (cnt1 < 32) {
3702 
3703   bind(SHORT_UNROLLED_BEGIN);
3704   // int i = 1;
3705   movl(index, 1);
3706   cmpl(index, cnt1);
3707   jcc(Assembler::greaterEqual, SHORT_UNROLLED_LOOP_EXIT);
3708 
3709   // for (; i < cnt1 ; i += 2) {
3710   bind(SHORT_UNROLLED_LOOP_BEGIN);
3711   movl(tmp3, 961);
3712   imull(result, tmp3);
3713   arrays_hashcode_elload(tmp2, Address(ary1, index, Address::times(elsize), -elsize), eltype);
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