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src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp

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3610     arrays_hashcode_elvload(vtmp[idx], Address(ary1, index, Address::times(elsize), 8 * idx * elsize), eltype);
3611   }
3612   // vresult = vresult * vnext + ary1[index+8*idx:index+8*idx+7];
3613   for (int idx = 0; idx < 4; idx++) {
3614     vpmulld(vresult[idx], vresult[idx], vnext, Assembler::AVX_256bit);
3615     arrays_hashcode_elvcast(vtmp[idx], eltype);
3616     vpaddd(vresult[idx], vresult[idx], vtmp[idx], Assembler::AVX_256bit);
3617   }
3618   // index += 32;
3619   addl(index, 32);
3620   // index < bound;
3621   cmpl(index, bound);
3622   jcc(Assembler::less, UNROLLED_VECTOR_LOOP_BEGIN);
3623   // }
3624 
3625   lea(ary1, Address(ary1, bound, Address::times(elsize)));
3626   subl(cnt1, bound);
3627   // release bound
3628 
3629   // vresult *= IntVector.fromArray(I256, power_of_31_backwards, 1);

3630   for (int idx = 0; idx < 4; idx++) {
3631     lea(tmp2, ExternalAddress(StubRoutines::x86::arrays_hashcode_powers_of_31() + ((8 * idx + 1) * sizeof(jint))));
3632     arrays_hashcode_elvload(vcoef[idx], Address(tmp2, 0), T_INT);
3633     vpmulld(vresult[idx], vresult[idx], vcoef[idx], Assembler::AVX_256bit);
3634   }
3635   // result += vresult.reduceLanes(ADD);
3636   for (int idx = 0; idx < 4; idx++) {
3637     reduceI(Op_AddReductionVI, 256/(sizeof(jint) * 8), result, result, vresult[idx], vtmp[(idx * 2 + 0) % 4], vtmp[(idx * 2 + 1) % 4]);
3638   }
3639 
3640   // } else if (cnt1 < 32) {
3641 
3642   bind(SHORT_UNROLLED_BEGIN);
3643   // int i = 1;
3644   movl(index, 1);
3645   cmpl(index, cnt1);
3646   jcc(Assembler::greaterEqual, SHORT_UNROLLED_LOOP_EXIT);
3647 
3648   // for (; i < cnt1 ; i += 2) {
3649   bind(SHORT_UNROLLED_LOOP_BEGIN);
3650   movl(tmp3, 961);
3651   imull(result, tmp3);
3652   arrays_hashcode_elload(tmp2, Address(ary1, index, Address::times(elsize), -elsize), eltype);

3610     arrays_hashcode_elvload(vtmp[idx], Address(ary1, index, Address::times(elsize), 8 * idx * elsize), eltype);
3611   }
3612   // vresult = vresult * vnext + ary1[index+8*idx:index+8*idx+7];
3613   for (int idx = 0; idx < 4; idx++) {
3614     vpmulld(vresult[idx], vresult[idx], vnext, Assembler::AVX_256bit);
3615     arrays_hashcode_elvcast(vtmp[idx], eltype);
3616     vpaddd(vresult[idx], vresult[idx], vtmp[idx], Assembler::AVX_256bit);
3617   }
3618   // index += 32;
3619   addl(index, 32);
3620   // index < bound;
3621   cmpl(index, bound);
3622   jcc(Assembler::less, UNROLLED_VECTOR_LOOP_BEGIN);
3623   // }
3624 
3625   lea(ary1, Address(ary1, bound, Address::times(elsize)));
3626   subl(cnt1, bound);
3627   // release bound
3628 
3629   // vresult *= IntVector.fromArray(I256, power_of_31_backwards, 1);
3630   lea(tmp2, ExternalAddress(StubRoutines::x86::arrays_hashcode_powers_of_31() + (0 * sizeof(jint))));
3631   for (int idx = 0; idx < 4; idx++) {
3632     arrays_hashcode_elvload(vcoef[idx], Address(tmp2, (int)((8 * idx + 1) * sizeof(jint))), T_INT);

3633     vpmulld(vresult[idx], vresult[idx], vcoef[idx], Assembler::AVX_256bit);
3634   }
3635   // result += vresult.reduceLanes(ADD);
3636   for (int idx = 0; idx < 4; idx++) {
3637     reduceI(Op_AddReductionVI, 256/(sizeof(jint) * 8), result, result, vresult[idx], vtmp[(idx * 2 + 0) % 4], vtmp[(idx * 2 + 1) % 4]);
3638   }
3639 
3640   // } else if (cnt1 < 32) {
3641 
3642   bind(SHORT_UNROLLED_BEGIN);
3643   // int i = 1;
3644   movl(index, 1);
3645   cmpl(index, cnt1);
3646   jcc(Assembler::greaterEqual, SHORT_UNROLLED_LOOP_EXIT);
3647 
3648   // for (; i < cnt1 ; i += 2) {
3649   bind(SHORT_UNROLLED_LOOP_BEGIN);
3650   movl(tmp3, 961);
3651   imull(result, tmp3);
3652   arrays_hashcode_elload(tmp2, Address(ary1, index, Address::times(elsize), -elsize), eltype);
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