Commit Graph

688 Commits

Author SHA1 Message Date
Roman Lebedev 5c7255fe3a
[X86][Costmodel] `getReplicationShuffleCost()`: promote 8 bit-wide elements to 32 bit when no AVX512VBMI
Currently `X86TTIImpl::getInterleavedMemoryOpCostAVX512()` asks about i8 elt type,
so this change does affect vectorization. In the end, it will ask about i1.

We should also try to promote to i16 if we have AVX512BW, i'll do that in a follow-up.
All costs here look good, i've added the missing truncation costs in preparatory patches.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D113853
2021-11-15 19:04:02 +03:00
Roman Lebedev a468c39c90
[X86][Costmodel] `trunc v32i16 to v64i8` can appear after legalization, cost is same as for `trunc v32i16 to v32i8`
Some of the costs get larger here,
but i suppose that makes sense since we'd previously query
scalarization costs that may not be really representative of the reality.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D113852
2021-11-15 19:04:02 +03:00
Roman Lebedev 9e57d9b09d
[X86][Costmodel] `trunc v8i64 to v16i8/v32i8/v64i8` can appear after legalization, cost is same as for `trunc v8i64 to v8i8`
While this one is trivial and identical to the previous patch,
there is a weird cost change in a follow-up patch that i'm not sure about.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D113851
2021-11-15 19:04:02 +03:00
Roman Lebedev 0116c708c6
[X86][Costmodel] `trunc v16i32 to v32i8/v64i8` can appear after legalization, cost is same as for `trunc v16i32 to v16i8`
While this one is trivial and identical to the previous patch,
there is a weird cost change in a follow-up patch that i'm not sure about.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D113850
2021-11-15 19:04:02 +03:00
Roman Lebedev 4dd2f0446c
[X86][Costmodel] `getReplicationShuffleCost()`: promote 16 bit-wide elements to 32 bit when no AVX512BW
The basic idea is simple, if we don't have native shuffle for this element type,
then we must have native shuffle for wider element type,
so promote, replicate, demote.

I believe, asking `getCastInstrCost(Instruction::Trunc` is correct semantically,
case in point `trunc <32 x i32> to <32 x i8>` aka 2 * ZMM will naively result in
2 * XMM, that then will be packed into 1 * YMM,
and it should count the cost of said packing,
not just the truncations.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D113609
2021-11-14 20:01:38 +03:00
Roman Lebedev e876698a5d
[NFC][TTI] `getReplicationShuffleCost()`: s/Replicated/Dst/
'Replicated' is mouthful and somewhat ambigious,
while 'destination' is pretty self-explanatory.
2021-11-14 20:01:38 +03:00
Roman Lebedev b283961012
[X86][Costmodel] `trunc v8i64 to v16i16/v32i16` can appear after legalization, cost is same as for `trunc v8i64 to v8i16`
Same as D113842, but for i64

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D113843
2021-11-14 18:41:38 +03:00
Roman Lebedev a5f2fdca99
[X86][Costmodel] `trunc v16i32 to v32i16` can appear after legalization, cost is same as for `trunc v16i32 to v16i16`
This was noticed in D113609, hopefully it unblocks that patch.
There are likely other similar problems.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D113842
2021-11-14 18:41:37 +03:00
Roman Lebedev a70d74323e
[X86][Costmodel] `getReplicationShuffleCost()`: implement cost model for 8 bit-wide elements with AVX512VBMI
VBMI introduced VPERMB, so cost-model i8 replication shuffle using it.
Note that we can still model i8 replication shufflle without VBMI,
by promoting to i16/i32. That will be done in follow-ups.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D113479
2021-11-10 22:52:40 +03:00
Roman Lebedev c6e894b9b2
[X86][Costmodel] `getReplicationShuffleCost()`: implement cost model for 16 bit-wide elements with AVX512BW
BWI introduced VPERMW, so cost-model i16 replication shuffle using it.
Note that we can still model i16 replication shufflle without BWI,
by promoting to i32. That will be done in follow-ups.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D113478
2021-11-10 22:52:39 +03:00
Roman Lebedev 4101c7bf19
[X86][Costmodel] `getReplicationShuffleCost()`: implement cost model for 32/64 bit-wide elements with AVX512F
This models lowering to `vpermd`/`vpermq`/`vpermps`/`vpermpd`,
that take a single input vector and a single index vector,
and are cross-lane. So far i haven't seen evidence that
replication ever results in demanding more than a single
input vector per output vector.

This results in *shockingly* lesser costs :)

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D113350
2021-11-10 22:52:33 +03:00
Roman Lebedev d484cc152b
[TTI] Adjust `getReplicationShuffleCost()` interface
It is trivial to produce DemandedSrcElts given DemandedReplicatedElts,
so don't pass the former. Also, it isn't really useful so far
to have the overload taking the Mask, so just inline it.
2021-11-09 14:07:59 +03:00
Roman Lebedev f8efc5c0ac
[NFC][TTI] Add/extract `getReplicationShuffleCost()` method, deduplicate it's implementations
Hiding it in `getInterleavedMemoryOpCost()` is problematic for a number of reasons,
including testability and reuse, let's do better.

In a followup `getUserCost()` will be taught to use to to estimate the mask costs,
which will allow for better cost model tests for it.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D113313
2021-11-06 16:45:15 +03:00
Roman Lebedev ad617183bb
[X86] `X86TTIImpl::getInterleavedMemoryOpCostAVX512()`: mask is i8 not i1
Even though AVX512's masked mem ops (unlike AVX1/2) have a mask
that is a `VF x i1`, replication of said masks happens after
promotion of it to `VF x i8`, so we should use `i8`, not `i1`,
when calculating the cost of mask replication.
2021-11-05 17:27:02 +03:00
Roman Lebedev df93c8a919
[X86] `X86TTIImpl::getInterleavedMemoryOpCostAVX512()`: fallback to scalarization cost computation for mask
I don't really buy that masked interleaved memory loads/stores are supported on X86.
There is zero costmodel test coverage, no actual cost modelling for the generation
of the mask repetition, and basically only two LV tests.
Additionally, i'm not very interested in AVX512.

I don't know if this really helps "soft" block over at
https://reviews.llvm.org/D111460#inline-1075467,
but i think it can't make things worse at least.

When we are being told that there is a masking, instead of
completely giving up and falling back to
fully scalarizing `BasicTTIImplBase::getInterleavedMemoryOpCost()`,
let's correctly query the cost of masked memory ops,
keep all the pretty shuffle cost modelling,
but scalarize the cost computation for the mask replication.

I think, not scalarizing the shuffles themselves
may adjust the computed costs a bit,
and maybe hopefully just enough to hide the "regressions"
at https://reviews.llvm.org/D111460#inline-1075467
I do mean hide, because the test coverage is non-existent.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D112873
2021-11-03 18:14:35 +03:00
Simon Pilgrim 6fc50e531d [CostModel][X86] Remove old FIXME comments for AVX512F vector splitting
Similar to AVX1, the cost of splitting/merging 512-bit -> 256-bits vectors for arithmetic operations are typically hidden due to different used ports etc.
2021-11-01 11:11:11 +00:00
Simon Pilgrim 6102e5d56b [CostModel][X86] Remove old TODO comment
BMI (TZCNT) scalar handling was added at rGa2db388dce77c2f23f2009d7363a0b63bb54523c
2021-10-29 17:28:45 +01:00
Roman Lebedev 8fac9e95ad
[X86] `X86TTIImpl::getInterleavedMemoryOpCost()`: scale interleaving cost by the fraction of live members
By definition, interleaving load of stride N means:
load N*VF elements, and shuffle them into N VF-sized vectors,
with 0'th vector containing elements `[0, VF)*stride + 0`,
and 1'th vector containing elements `[0, VF)*stride + 1`.
Example: https://godbolt.org/z/df561Me5E (i64 stride 4 vf 2 => cost 6)

Now, not fully interleaved load, is when not all of these vectors is demanded.
So at worst, we could just pretend that everything is demanded,
and discard the non-demanded vectors. What this means is that the cost
for not-fully-interleaved group should be not greater than the cost
for the same fully-interleaved group, but perhaps somewhat less.
Examples:
https://godbolt.org/z/a78dK5Geq (i64 stride 4 (indices 012u) vf 2 => cost 4)
https://godbolt.org/z/G91ceo8dM (i64 stride 4 (indices 01uu) vf 2 => cost 2)
https://godbolt.org/z/5joYob9rx (i64 stride 4 (indices 0uuu) vf 2 => cost 1)

Right now, for such not-fully-interleaved loads we just use the costs
for fully-interleaved loads. But at least **in general**,
that is obviously overly pessimistic, because **in general**,
not all the shuffles needed to perform the full interleaving
will end up being live.

So what this does, is naively scales the interleaving cost
by the fraction of the live members. I believe this should still result
in the right ballpark cost estimate, although it may be over/under -estimate.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D112307
2021-10-22 16:33:58 +03:00
Simon Pilgrim 5b395bd633 [CostModel][X86] Add costs for multiply-by-pow2 constants
These are folded to left shifts in the backend.

We should be able to extend this for multiply-by-negpow2 after D111968 has landed to resolve PR51436
2021-10-20 13:11:21 +01:00
Simon Pilgrim 9fc523d114 [X86] Remove X86ProcFamilyEnum::IntelSLM
Replace X86ProcFamilyEnum::IntelSLM enum with a TuningUseSLMArithCosts flag instead, matching what we already do for Goldmont.

This just leaves X86ProcFamilyEnum::IntelAtom to replace with general Tuning/Feature flags and we can finally get rid of the old X86ProcFamilyEnum enum.

Differential Revision: https://reviews.llvm.org/D112079
2021-10-20 11:58:39 +01:00
Simon Pilgrim f041338153 [X86][Costmodel] Add SSE2 sub-128bit vXi32/f32 stride 2 interleaved store costs
Differential Revision: https://reviews.llvm.org/D111941
2021-10-18 13:46:10 +01:00
Simon Pilgrim c850d5c5c8 [X86][Costmodel] Add SSE2 sub-128bit vXi8/16 stride 2 interleaved store costs
Differential Revision: https://reviews.llvm.org/D111941
2021-10-18 13:15:14 +01:00
Roman Lebedev 91373bf12e
[X86][Costmodel] Load/store i64 Stride=4 VF=16 interleaving costs
A few more tuples are being queried after D111546. Might be good to model them,
They all require a lot of manual assembly surgery.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/9bnKrefcG - for intels `Block RThroughput: =40.0`; for ryzens, `Block RThroughput: =16.0`
So could pick cost of `40`

For store we have:
https://godbolt.org/z/5s3s14dEY - for intels `Block RThroughput: =40.0`; for ryzens, `Block RThroughput: =16.0`
So we could pick cost of `40`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111945
2021-10-17 17:28:10 +03:00
Roman Lebedev 3274ce3a28
[X86][Costmodel] Load/store i64 Stride=2 VF=32 interleaving costs
A few more tuples are being queried after D111546. Might be good to model them,
They all require a lot of manual assembly surgery.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/MTaKboejM - for intels `Block RThroughput: =32.0`; for ryzens, `Block RThroughput: <=16.0`
So could pick cost of `32`

For store we have:
https://godbolt.org/z/v7xPj3Wd4 - for intels `Block RThroughput: =32.0`; for ryzens, `Block RThroughput: <=32.0`
So we could pick cost of `32`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111944
2021-10-17 17:28:10 +03:00
Roman Lebedev 3a6a9f74d3
[X86][Costmodel] Load/store i32 Stride=4 VF=32 interleaving costs
A few more tuples are being queried after D111546. Might be good to model them,
They all require a lot of manual assembly surgery.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/11rcvdreP - for intels `Block RThroughput: <=68.0`; for ryzens, `Block RThroughput: <=48.0`
So could pick cost of `68`

For store we have:
https://godbolt.org/z/6aM11fWcP - for intels `Block RThroughput: <=64.0`; for ryzens, `Block RThroughput: <=32.0`
So we could pick cost of `64`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111943
2021-10-17 17:28:09 +03:00
Roman Lebedev 4b76a74b42
[X86][Costmodel] Load/store i32 Stride=3 VF=32 interleaving costs
A few more tuples are being queried after D111546. Might be good to model them,
They all require a lot of manual assembly surgery.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/s5b6E6jsP - for intels `Block RThroughput: <=32.0`; for ryzens, `Block RThroughput: <=24.0`
So could pick cost of `32`

For store we have:
https://godbolt.org/z/efh99d93b - for intels `Block RThroughput: <=48.0`; for ryzens, `Block RThroughput: <=32.0`
So we could pick cost of `48`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111942
2021-10-17 17:28:09 +03:00
Roman Lebedev 887acf6842
[X86][Costmodel] Load/store i16 Stride=6 VF=32 interleaving costs
A few more tuples are being queried after D111546. Might be good to model them,
They all require a lot of manual assembly surgery.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/YTeT9M7fW - for intels `Block RThroughput: <=212.0`; for ryzens, `Block RThroughput: <=64.0`
So could pick cost of `212`

For store we have:
https://godbolt.org/z/vc954KEGP - for intels `Block RThroughput: <=90.0`; for ryzens, `Block RThroughput: <=24.0`
So we could pick cost of `90`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111940
2021-10-17 17:28:09 +03:00
Simon Pilgrim 85b87179f4 [TTI][X86] Add v8i16 -> 2 x v4i16 stride 2 interleaved load costs
Split SSE2 and SSSE3 costs to correctly handle PSHUFB lowering - as was noted on D111938
2021-10-16 17:28:07 +01:00
Simon Pilgrim 6ec644e215 [TTI][X86] Add SSE2 sub-128bit vXi16/32 and v2i64 stride 2 interleaved load costs
These cases use the same codegen as AVX2 (pshuflw/pshufd) for the sub-128bit vector deinterleaving, and unpcklqdq for v2i64.

It's going to take a while to add full interleaved cost coverage, but since these are the same for SSE2 -> AVX2 it should be an easy win.

Fixes PR47437

Differential Revision: https://reviews.llvm.org/D111938
2021-10-16 16:21:45 +01:00
Roman Lebedev d137f1288e
[X86][LV] X86 does *not* prefer vectorized addressing
And another attempt to start untangling this ball of threads around gather.
There's `TTI::prefersVectorizedAddressing()`hoop, which confusingly defaults to `true`,
which tells LV to try to vectorize the addresses that lead to loads,
but X86 generally can not deal with vectors of addresses,
the only instructions that support that are GATHER/SCATTER,
but even those aren't available until AVX2, and aren't really usable until AVX512.

This specializes the hook for X86, to return true only if we have AVX512 or AVX2 w/ fast gather.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111546
2021-10-16 12:32:18 +03:00
Roman Lebedev 3d7bf6625a
[X86][Costmodel] Improve cost modelling for not-fully-interleaved load
While i've modelled most of the relevant tuples for AVX2,
that only covered fully-interleaved groups.

By definition, interleaving load of stride N means:
load N*VF elements, and shuffle them into N VF-sized vectors,
with 0'th vector containing elements `[0, VF)*stride + 0`,
and 1'th vector containing elements `[0, VF)*stride + 1`.
Example: https://godbolt.org/z/df561Me5E (i64 stride 4 vf 2 => cost 6)

Now, not fully interleaved load, is when not all of these vectors is demanded.
So at worst, we could just pretend that everything is demanded,
and discard the non-demanded vectors. What this means is that the cost
for not-fully-interleaved group should be not greater than the cost
for the same fully-interleaved group, but perhaps somewhat less.
Examples:
https://godbolt.org/z/a78dK5Geq (i64 stride 4 (indices 012u) vf 2 => cost 4)
https://godbolt.org/z/G91ceo8dM (i64 stride 4 (indices 01uu) vf 2 => cost 2)
https://godbolt.org/z/5joYob9rx (i64 stride 4 (indices 0uuu) vf 2 => cost 1)

As we have established over the course of last ~70 patches, (wow)
`BaseT::getInterleavedMemoryOpCos()` is absolutely bogus,
it is usually almost an order of magnitude overestimation,
so i would claim that we should at least use the hardcoded costs
of fully interleaved load groups.

We could go further and adjust them e.g. by the number of demanded indices,
but then i'm somewhat fearful of underestimating the cost.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111174
2021-10-14 23:14:36 +03:00
Simon Pilgrim 871f773986 [TTI][X86] Merge getInterleavedMemoryOpCostAVX2 into getInterleavedMemoryOpCost. NFC
This a NFC refactor patch to merge the AVX2 interleaved cost handling back into the getInterleavedMemoryOpCost base method - while getInterleavedMemoryOpCostAVX512 uses instruction and patterns very specific to AVX512+, much of the costs analysis for AVX2 can be reused for all SSE targets.

This is the first step towards improving SSE and AVX1 costs that will reuse the relevant AVX2 costs by splitting some of the tables - for instance AVX1 has very similar costs for most vXi64/vXf64 interleave patterns and many sub-128bit vector costs are the same all the way down to SSE2 (or at least SSSE3).

Differential Revision: https://reviews.llvm.org/D111822
2021-10-14 18:46:25 +01:00
Simon Pilgrim fcbec7e668 [TTI][X86] Swap getInterleavedMemoryOpCostAVX2/getInterleavedMemoryOpCostAVX512 implementations. NFC.
I have some upcoming refactoring for SSE/AVX1 interleaving cost support, and the diff is a lot nicer if the (unaltered) AVX512 implementation isn't stuck between getInterleavedMemoryOpCost and getInterleavedMemoryOpCostAVX2
2021-10-14 18:10:03 +01:00
Simon Pilgrim 77dcdc2f50 [CostModel][X86] Pre-SSE41 targets can use PMADDWD for sext sub-i16 -> i32
Without SSE41 sext/zext instructions the extensions will be split, meaning that the MUL->PMADDWD fold will split the sext_i32(x) into zext_i32(sext_i16(x))
2021-10-14 12:17:40 +01:00
Roman Lebedev 18eef13dad
[X86][Costmodel] Fix `X86TTIImpl::getGSScalarCost()`
`X86TTIImpl::getGSScalarCost()` has (at least) two issues:
* it naively computes the cost of sequence of `insertelement`/`extractelement`.
  If we are operating not on the XMM (but YMM/ZMM),
  this widely overestimates the cost of subvector insertions/extractions.
* Gather/scatter takes a vector of pointers, and scalarization results in us performing
  scalar memory operation for each of these pointers, but we never account for the cost
  of extracting these pointers out of the vector of pointers.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111222
2021-10-13 22:35:39 +03:00
Simon Pilgrim 0776924a17 [CostModel][X86] getCmpSelInstrCost - treat BAD_PREDICATEs the same as the worst case cost predicates for ICMP/FCMP instructions
As suggested on D111024, we should treat getCmpSelInstrCost calls without a specific predicate as matching the worst case predicate cost.

These regressions will be addressed with a mixture of D111024 and fixing other specific getCmpSelInstrCost calls to have realistic predicates.
2021-10-06 10:14:56 +01:00
Roman Lebedev 3f9b235482
[X86][Costmodel] Load/store i64/f64 Stride=6 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/1jfGddcre - for intels `Block RThroughput: =36.0`; for ryzens, `Block RThroughput: =12.0`
So could pick cost of `36`

For store we have:
https://godbolt.org/z/ao9srMT8r - for intels `Block RThroughput: =30.0`; for ryzens, `Block RThroughput: =12.0`
So we could pick cost of `30`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111094
2021-10-05 16:58:58 +03:00
Roman Lebedev e2784c5d8c
[X86][Costmodel] Load/store i64/f64 Stride=6 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/rc8jYxW6M - for intels `Block RThroughput: =18.0`; for ryzens, `Block RThroughput: =6.0`
So could pick cost of `18`.

For store we have:
https://godbolt.org/z/9PhPEr65G - for intels `Block RThroughput: =15.0`; for ryzens, `Block RThroughput: =6.0`
So we could pick cost of `15`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111093
2021-10-05 16:58:58 +03:00
Roman Lebedev 3960693048
[X86][Costmodel] Load/store i64/f64 Stride=6 VF=2 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/onese7rec - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: =3.0`
So could pick cost of `6`.

For store we have:
https://godbolt.org/z/bMd7dddnT - for intels `Block RThroughput: =8.0`; for ryzens, `Block RThroughput: <=6.0`
So we could pick cost of `8`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111092
2021-10-05 16:58:58 +03:00
Roman Lebedev 79d6d12d95
[X86][Costmodel] Load/store i32/f32 Stride=6 VF=16 interleaving costs
This one required quite a bit of an assembly surgery, but i think it's in the right ballpark..

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/na97Kb96o - for intels `Block RThroughput: <=64.0`; for ryzens, `Block RThroughput: <=32.0`
So could pick cost of `64`.

For store we have:
https://godbolt.org/z/GG1WeoKar - for intels `Block RThroughput: =66.0`; for ryzens, `Block RThroughput: <=27.5`
So we could pick cost of `66`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111091
2021-10-05 16:58:58 +03:00
Roman Lebedev 2996a2b50f
[X86][Costmodel] Load/store i32/f32 Stride=6 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/jK85GWKaK - for intels `Block RThroughput: =31.0`; for ryzens, `Block RThroughput: <=17.0`
So could pick cost of `31`.

For store we have:
https://godbolt.org/z/hPWWhEEf9 - for intels `Block RThroughput: =33.0`; for ryzens, `Block RThroughput: <=13.8`
So we could pick cost of `33`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111089
2021-10-05 16:58:57 +03:00
Roman Lebedev d51532d8aa
[X86][Costmodel] Load/store i32/f32 Stride=6 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/szEj1ceee - for intels `Block RThroughput: =15.0`; for ryzens, `Block RThroughput: <=8.8`
So could pick cost of `15`.

For store we have:
https://godbolt.org/z/81bq4fTo1 - for intels `Block RThroughput: =12.0`; for ryzens, `Block RThroughput: <=10.0`
So we could pick cost of `12`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111087
2021-10-05 16:58:57 +03:00
Roman Lebedev 764fd5f463
[X86][Costmodel] Load/store i32/f32 Stride=6 VF=2 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/aec96Thee - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: <=3.3`
So could pick cost of `6`.

For store we have:
https://godbolt.org/z/aec96Thee - for intels `Block RThroughput: =9.0`; for ryzens, `Block RThroughput: <=3.0`
So we could pick cost of `9`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111083
2021-10-05 16:58:57 +03:00
Roman Lebedev c800119c46
[X86][Costmodel] Load/store i64/f64 Stride=4 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/3M3hbq7n8 - for intels `Block RThroughput: =20.0`; for ryzens, `Block RThroughput: =8.0`
So could pick cost of `20`.

For store we have:
https://godbolt.org/z/zvnPYWTx7 - for intels `Block RThroughput: =20.0`; for ryzens, `Block RThroughput: =8.0`
So we could pick cost of `20`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111076
2021-10-05 16:58:57 +03:00
Roman Lebedev 000ce0bfd5
[X86][Costmodel] Load/store i64/f64 Stride=4 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/MTKdzjvnr - for intels `Block RThroughput: =8.0`; for ryzens, `Block RThroughput: <=4.0`
So could pick cost of `8`.

For store we have:
https://godbolt.org/z/cMYEvqoah - for intels `Block RThroughput: =8.0`; for ryzens, `Block RThroughput: <=4.0`
So we could pick cost of `8`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111075
2021-10-05 16:58:57 +03:00
Roman Lebedev dcc2b0d933
[X86][Costmodel] Load/store i64/f64 Stride=4 VF=2 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/z197317d1 - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: =2.0`
So could pick cost of `6`.

For store we have:
https://godbolt.org/z/8dzszjf9q - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: <=4.0`
So we could pick cost of `6`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111073
2021-10-05 16:58:57 +03:00
Roman Lebedev 7d91037fd2
[X86][Costmodel] Load/store i32/f32 Stride=4 VF=16 interleaving costs
This one required quite a bit of assembly surgery, but the trend continues, so i think this is right.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/EKWdj8cKT - for intels `Block RThroughput: <=32.0`; for ryzens, `Block RThroughput: <=24.0`
So could pick cost of `32`.

For store we have:
https://godbolt.org/z/zj4bb9P75 - for intels `Block RThroughput: =32.0`; for ryzens, `Block RThroughput: <=16.0`
So we could pick cost of `32`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111064
2021-10-05 16:58:57 +03:00
Roman Lebedev 4aee1e5b93
[X86][Costmodel] Load/store i32/f32 Stride=4 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/a6rxMG6ec - for intels `Block RThroughput: =16.0`; for ryzens, `Block RThroughput: <=12.0`
So could pick cost of `16`.

For store we have:
https://godbolt.org/z/ced1bdqc9 - for intels `Block RThroughput: =16.0`; for ryzens, `Block RThroughput: <=8.0`
So we could pick cost of `16`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111063
2021-10-05 16:58:57 +03:00
Roman Lebedev 3c2e22b795
[X86][Costmodel] Load/store i32/f32 Stride=4 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/avq1oz98W - for intels `Block RThroughput: =8.0`; for ryzens, `Block RThroughput: =4.0`
So could pick cost of `8`.

For store we have:
https://godbolt.org/z/89PGMc1qs - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: <=6.0`
So we could pick cost of `6`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111061
2021-10-05 16:58:57 +03:00
Roman Lebedev b6234c1edf
[X86][Costmodel] Load/store i32/f32 Stride=4 VF=2 interleaving costs
Finally, we are getting to the heavy-hitter stuff!

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/7crGWoar6 - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So could pick cost of `4`.

For store we have:
https://godbolt.org/z/T8aq3MszM - for intels `Block RThroughput: =5.0`; for ryzens, `Block RThroughput: <=2.0`
So we could pick cost of `5`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111060
2021-10-05 16:58:56 +03:00
Roman Lebedev cef0a693b6
[X86][Costmodel] Load/store i64/f64 Stride=3 VF=16 interleaving costs
This required huge amount of assembly surgery, but i think this is about right.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/z11crMEcj - for intels `Block RThroughput: =20.0`; for ryzens, `Block RThroughput: <=18.0`
So could pick cost of `25`.

For store we have:
https://godbolt.org/z/eqT4ze3j4 - for intels `Block RThroughput: =24.0`; for ryzens, `Block RThroughput: <=16.0`
So we could pick cost of `24`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111031
2021-10-04 14:35:17 +03:00
Roman Lebedev ede0611e79
[X86][Costmodel] Load/store i64/f64 Stride=3 VF=8 interleaving costs
This one required quite a bit of assembly surgery.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/oYWv4cTnK - for intels `Block RThroughput: =10.0`; for ryzens, `Block RThroughput: <=8.0`
So pick cost of `10`.

For store we have:
https://godbolt.org/z/33GMhrsG9 - for intels `Block RThroughput: =12.0`; for ryzens, `Block RThroughput: <=8.0`
So pick cost of `12`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111027
2021-10-04 14:35:01 +03:00
Roman Lebedev eb9a694c17
[X86][Costmodel] Load/store i64/f64 Stride=3 VF=4 interleaving costs
This one required quite a bit of assembly surgery.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/Tce3osvcz - for intels `Block RThroughput: =5.0`; for ryzens, `Block RThroughput: <=4.0`
So pick cost of `5`.

For store we have:
https://godbolt.org/z/oc3arEcnE - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: <=4.0`
So pick cost of `6`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111026
2021-10-04 14:34:47 +03:00
Roman Lebedev d3bbe781ea
[X86][Costmodel] Load/store i64/f64 Stride=3 VF=2 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/sz5qdKnr4 - for intels `Block RThroughput: =1.0`; for ryzens, `Block RThroughput: <=1.0`
So pick cost of `1`.

For store we have:
https://godbolt.org/z/Kzdjff63v - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=3.0`
So pick cost of `4`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111025
2021-10-04 14:34:33 +03:00
Roman Lebedev 4ca5bc07af
[X86][Costmodel] Load/store i32/f32 Stride=3 VF=16 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/5fqrh4qqo - for intels `Block RThroughput: =14.0`; for ryzens, `Block RThroughput: <=12.0`
So pick cost of `14`.

For store we have:
https://godbolt.org/z/5fqrh4qqo - for intels `Block RThroughput: =22.0`; for ryzens, `Block RThroughput: <=16.0`
So pick cost of `22`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111022
2021-10-04 14:34:19 +03:00
Roman Lebedev 198aa84973
[X86][Costmodel] Load/store i32/f32 Stride=3 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/zdz5Ga6fs - for intels `Block RThroughput: =7.0`; for ryzens, `Block RThroughput: <=6.0`
So pick cost of `7`.

For store we have:
https://godbolt.org/z/qn71513ac - for intels `Block RThroughput: =11.0`; for ryzens, `Block RThroughput: <=8.0`
So pick cost of `11`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111021
2021-10-04 14:34:05 +03:00
Roman Lebedev a93411c3af
[X86][Costmodel] Load/store i32/f32 Stride=3 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/d8PdhEszo - for intels `Block RThroughput: =3.0`; for ryzens, `Block RThroughput: <=3.0`
So pick cost of `3`.

For store we have:
https://godbolt.org/z/WojonfG5n - for intels `Block RThroughput: =5.0`; for ryzens, `Block RThroughput: <=3.0`
So pick cost of `5`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111020
2021-10-04 14:34:03 +03:00
Roman Lebedev 3e93fcdfc8
[X86][Costmodel] Load/store i32/f32 Stride=3 VF=2 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/z8qa14bs3 - for intels `Block RThroughput: =3.0`; for ryzens, `Block RThroughput: =1.5`
So pick cost of `3`.

For store we have:
https://godbolt.org/z/GYGajoc4K - for intels `Block RThroughput: <=4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111019
2021-10-04 14:31:50 +03:00
Roman Lebedev 67f1ee2e38
[X86][Costmodel] Load/store i16 Stride=3 VF=32 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/rMaYr67hz - for intels `Block RThroughput: =56.0`; for ryzens, `Block RThroughput: <=17.8`
So pick cost of `56`.

For store we have:
https://godbolt.org/z/eMsbKqnvv - for intels `Block RThroughput: <=54.0`; for ryzens, `Block RThroughput: <=15.0`
So pick cost of `54`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111018
2021-10-03 23:40:35 +03:00
Roman Lebedev 3cbc0a07f9
[X86][Costmodel] Load/store i16 Stride=3 VF=16 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/1T6MMzeh3 - for intels `Block RThroughput: =28.0`; for ryzens, `Block RThroughput: <=8.5`
So pick cost of `28`.

For store we have:
https://godbolt.org/z/1T6MMzeh3 - for intels `Block RThroughput: <=27.0`; for ryzens, `Block RThroughput: <=7.0`
So pick cost of `27`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111017
2021-10-03 23:40:21 +03:00
Roman Lebedev 72f8a9244a
[X86][Costmodel] Load/store i16 Stride=3 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/Mh9MnnT8W - for intels `Block RThroughput: =9.0`; for ryzens, `Block RThroughput: <=2.3`
So pick cost of `9`.

For store we have:
https://godbolt.org/z/Mh9MnnT8W - for intels `Block RThroughput: <=12.0`; for ryzens, `Block RThroughput: <=3.3`
So pick cost of `12`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111016
2021-10-03 23:40:05 +03:00
Roman Lebedev 04f1469cb4
[X86][Costmodel] Load/store i16 Stride=3 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/sP4j1173f - for intels `Block RThroughput: =7.0`; for ryzens, `Block RThroughput: <=3.0`
So pick cost of `7`.

For store we have:
https://godbolt.org/z/sP4j1173f - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `6`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111015
2021-10-03 23:39:51 +03:00
Roman Lebedev 8e8fb77aa4
[X86][Costmodel] Load/store i16 Stride=3 VF=2 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/xnE988aej - for intels `Block RThroughput: =5.0`; for ryzens, `Block RThroughput: <=2.5`
So pick cost of `5`.

For store we have:
https://godbolt.org/z/rMGT31Tnh - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111014
2021-10-03 23:39:36 +03:00
Roman Lebedev a5e5883ef5
[X86][Costmodel] Load/store i8 Stride=6 VF=32 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/c1jjKqP7b - for intels `Block RThroughput: <=82.0`; for ryzens, `Block RThroughput: <=26.0`
So pick cost of `82`.

For store we have:
https://godbolt.org/z/YM4ErY8x7 - for intels `Block RThroughput: <=90.0`; for ryzens, `Block RThroughput: <=25.5`
So pick cost of `90`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111013
2021-10-03 23:39:22 +03:00
Roman Lebedev bd5ba437fd
[X86][Costmodel] Load/store i8 Stride=6 VF=16 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/Gz8hhqfTM - for intels `Block RThroughput: <=43.0`; for ryzens, `Block RThroughput: <=14.0`
So pick cost of `43`.

For store we have:
https://godbolt.org/z/9vrdssYa8 - for intels `Block RThroughput: <=27.0`; for ryzens, `Block RThroughput: <=12.0`
So pick cost of `27`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111012
2021-10-03 23:39:08 +03:00
Roman Lebedev 0b27f9c088
[X86][Costmodel] Load/store i8 Stride=6 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/v98qPTTf6 - for intels `Block RThroughput: =18.0`; for ryzens, `Block RThroughput: =6.0`
So pick cost of `18`.

For store we have:
https://godbolt.org/z/rn5T9E8q6 - for intels `Block RThroughput: <=16.0`; for ryzens, `Block RThroughput: <=4.5`
So pick cost of `16`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111011
2021-10-03 23:38:54 +03:00
Roman Lebedev 6fe4cce558
[X86][Costmodel] Load/store i8 Stride=6 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/4sWhs396o - for intels `Block RThroughput: =14.0`; for ryzens, `Block RThroughput: <=7.0`
So pick cost of `14`.

For store we have:
https://godbolt.org/z/4sWhs396o - for intels `Block RThroughput: =9.0`; for ryzens, `Block RThroughput: <=3.0`
So pick cost of `9`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111010
2021-10-03 23:38:40 +03:00
Roman Lebedev 396b95e5c9
[X86][Costmodel] Load/store i8 Stride=6 VF=2 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/jvj6jzns5 - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: <=3.0`
So pick cost of `6`.

For store we have:
https://godbolt.org/z/ros7eebMP - for intels `Block RThroughput: =7.0`; for ryzens, `Block RThroughput: <=3.0`
So pick cost of `7`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D111008
2021-10-03 23:38:10 +03:00
Simon Pilgrim b85bf520dc [CostModel][X86] X86TTIImpl::getCmpSelInstrCost - try to use Predicate argument directly first (PR48337)
There's still a lot of cases where getCmpSelInstrCost fails to specify a predicate, once those are in place we should be able to remove the fallback to the Instruction argument entirely.
2021-10-03 17:16:51 +01:00
Roman Lebedev acb459574a
[X86][Costmodel] Load/store i8 Stride=4 VF=32 interleaving costs
While we already model this tuple, the load cost is divergent from reality, so fix it.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/zWMhhnPYa - for intels `Block RThroughput: =56.0`; for ryzens, `Block RThroughput: <=24.0`
So pick cost of `56`.

For store we have:
https://godbolt.org/z/vnqqjWx51 - for intels `Block RThroughput: =12.0`; for ryzens, `Block RThroughput: <=4.0`
So pick cost of `12`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110971
2021-10-02 13:40:21 +03:00
Roman Lebedev 0e71ae6da8
[X86][Costmodel] Load/store i8 Stride=4 VF=16 interleaving costs
While we already model this tuple, the values are divergent from reality, so fix them.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/TrGW7cKsE - for intels `Block RThroughput: =24.0`; for ryzens, `Block RThroughput: <=12.0`
So pick cost of `24`.

For store we have:
https://godbolt.org/z/Mh7qaqEfe - for intels `Block RThroughput: =8.0`; for ryzens, `Block RThroughput: <=4.0`
So pick cost of `8`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110970
2021-10-02 13:40:21 +03:00
Roman Lebedev 74e4a0e327
[X86][Costmodel] Load/store i8 Stride=4 VF=8 interleaving costs
While we already model this tuple, the values are divergent from reality, so fix them.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/v7746Wcf7 - for intels `Block RThroughput: =12.0`; for ryzens, `Block RThroughput: <=6.0`
So pick cost of `12`.

For store we have:
https://godbolt.org/z/aEeEohEbP - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110969
2021-10-02 13:40:20 +03:00
Roman Lebedev ae08362cb8
[X86][Costmodel] Load/store i8 Stride=4 VF=4 interleaving costs
While we already model this tuple, the store cost is divergent from reality, so fix it.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/1n4bPh7Tn - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

For store we have:
https://godbolt.org/z/r8K9sveqo - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110968
2021-10-02 13:40:20 +03:00
Roman Lebedev 935b9693ae
[X86][Costmodel] Load/store i8 Stride=4 VF=2 interleaving costs
While we already model this tuple, the values are divergent from reality, so fix them.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/KP6nn36zs - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

For store we have:
https://godbolt.org/z/ov95zhrq6 - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110966
2021-10-02 13:40:20 +03:00
Roman Lebedev 448c939839
[X86][Costmodel] Load/store i8 Stride=3 VF=32 interleaving costs
For VF=16, costs are correct.
For VF=32, load cost is divergent.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/qKjevqf4W - for intels `Block RThroughput: <=14.0`; for ryzens, `Block RThroughput: <=4.5`
So pick cost of `14`.

For store we have:
https://godbolt.org/z/xTssTq319 - for intels `Block RThroughput: =13.0`; for ryzens, `Block RThroughput: <=5.5`
So pick cost of `13`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110961
2021-10-02 13:39:15 +03:00
Roman Lebedev d1460c88a6
[X86][Costmodel] Load/store i8 Stride=3 VF=8 interleaving costs
While we already model this tuple, the values are divergent from reality, so fix them.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/1jeocxj55 - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: <=3.0`
So pick cost of `6`.

For store we have:
https://godbolt.org/z/fr7xfa3K5 - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `6`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110960
2021-10-02 13:39:15 +03:00
Roman Lebedev f1df2d8eaf
[X86][Costmodel] Load/store i8 Stride=3 VF=4 interleaving costs
While we already model this tuple, the values are divergent from reality, so fix them.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/obWz3PrfK - for intels `Block RThroughput: =3.0`; for ryzens, `Block RThroughput: <=1.5`
So pick cost of `3`.

For store we have:
https://godbolt.org/z/orjPshn3h - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110958
2021-10-02 13:39:10 +03:00
Roman Lebedev 8a3c64c3a2
[X86][Costmodel] Load/store i8 Stride=3 VF=2 interleaving costs
While we already model this tuple, the values are divergent from reality, so fix them.

The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/WYscYMcW4 - for intels `Block RThroughput: =3.0`; for ryzens, `Block RThroughput: <=1.5`
So pick cost of `3`.

For store we have:
https://godbolt.org/z/e9qvYdbbs - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110956
2021-10-02 13:39:05 +03:00
Roman Lebedev 3e260efdfc
[X86][Costmodel] Load/store i64/f64 Stride=2 VF=16 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/1WMTojvfW - for intels `Block RThroughput: =16.0`; for ryzens, `Block RThroughput: <=8.0`
So pick cost of `16`.

For store we have:
https://godbolt.org/z/1WMTojvfW - for intels `Block RThroughput: =16.0`; for ryzens, `Block RThroughput: <=16.0`
So pick cost of `16`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110840
2021-10-01 17:48:14 +03:00
Roman Lebedev abd37de63e
[X86][Costmodel] Load/store i64/f64 Stride=2 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/PGYbYKPq8 - for intels `Block RThroughput: =8.0`; for ryzens, `Block RThroughput: <=4.0`
So pick cost of `8`.

For store we have:
https://godbolt.org/z/PGYbYKPq8 - for intels `Block RThroughput: =8.0`; for ryzens, `Block RThroughput: <=8.0`
So pick cost of `8`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110838
2021-10-01 17:48:14 +03:00
Roman Lebedev 71bc31b907
[X86][Costmodel] Load/store i64/f64 Stride=2 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/j5co1qWEW - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

For store we have:
https://godbolt.org/z/j5co1qWEW - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=4.0`
So pick cost of `4`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110837
2021-10-01 17:48:14 +03:00
Roman Lebedev 612e5b05a2
[X86][Costmodel] Load/store i64/f64 Stride=2 VF=2 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/8a1cfGeMn - for intels `Block RThroughput: =2.0`; for ryzens, `Block RThroughput: =1.0`
So pick cost of `2`.

For store we have:
https://godbolt.org/z/jMdcM47bx - for intels `Block RThroughput: =2.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `2`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110835
2021-10-01 17:48:14 +03:00
Roman Lebedev ea76cb87ee
[X86][Costmodel] Load/store i32/f32 Stride=2 VF=32 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

Here for `store` pattern we are starting to have spilling,
so accurate modelling may be problematic,
although if i drop the spilling, the measurements don't change.

For load we have:
https://godbolt.org/z/1oTTnncbx - for intels `Block RThroughput: =16.0`; for ryzens, `Block RThroughput: <=8.0`
So pick cost of `16`.

For store we have:
https://godbolt.org/z/1oTTnncbx - for intels `Block RThroughput: =16.0`; for ryzens, `Block RThroughput: =8.0`
So pick cost of `16`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110761
2021-10-01 17:48:14 +03:00
Roman Lebedev 80cd8da78d
[X86][Costmodel] Load/store i32/f32 Stride=2 VF=16 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/M9eev3xe8 - for intels `Block RThroughput: =8.0`; for ryzens, `Block RThroughput: <=4.0`
So pick cost of `8`.

For store we have:
https://godbolt.org/z/M9eev3xe8 - for intels `Block RThroughput: =8.0`; for ryzens, `Block RThroughput: =4.0`
So pick cost of `8`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110756
2021-10-01 17:48:14 +03:00
Roman Lebedev 3a0643e9c2
[X86][Costmodel] Load/store i32/f32 Stride=2 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/n8aMKeo4E - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

For store we have:
https://godbolt.org/z/n8aMKeo4E - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: =2.0`
So pick cost of `4`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110755
2021-10-01 17:48:13 +03:00
Roman Lebedev b12aeaec9a
[X86][Costmodel] Load/store i32/f32 Stride=2 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/EM5Ean7bd - for intels `Block RThroughput: =2.0`; for ryzens, `Block RThroughput: =1.0`
So pick cost of `2`.

For store we have:
https://godbolt.org/z/EM5Ean7bd - for intels `Block RThroughput: =2.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `2`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110754
2021-10-01 17:48:13 +03:00
Roman Lebedev f44d9009c2
[X86][Costmodel] Load/store i32/f32 Stride=2 VF=2 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/4rY96hnGT - for intels `Block RThroughput: =2.0`; for ryzens, `Block RThroughput: =1.0`
So pick cost of `2`.

For store we have:
https://godbolt.org/z/vbo37Y3r9 - for intels `Block RThroughput: =1.0`; for ryzens, `Block RThroughput: =0.5`
So pick cost of `1`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110753
2021-10-01 17:48:13 +03:00
Roman Lebedev 2d42a192e0
[X86][Costmodel] Load/store i8 Stride=2 VF=32 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/xz6x7c35P - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: <=2.5`
So pick cost of `6`.

For store we have:
https://godbolt.org/z/xz6x7c35P - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `4`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110709
2021-09-29 21:52:45 +03:00
Roman Lebedev bac60c55e0
[X86][Costmodel] Load/store i8 Stride=2 VF=16 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/a9hv4z47v - for intels `Block RThroughput: =4.0`; for ryzens, `Block RThroughput: =2.0`
So pick cost of `4`.

For store we have:
https://godbolt.org/z/6GfPn1b79 - for intels `Block RThroughput: =3.0`; for ryzens, `Block RThroughput: <=2.0`
So pick cost of `3`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110708
2021-09-29 21:52:45 +03:00
Roman Lebedev 1962185671
[X86][Costmodel] Load/store i8 Stride=2 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

Identical to VF=2.

For load we have:
https://godbolt.org/z/4TEbdzbMM - for intels `Block RThroughput: =2.0`; for ryzens, `Block RThroughput: <=1.0`
So pick cost of `2`.

For store we have:
https://godbolt.org/z/MYfzGPf3Y - for intels `Block RThroughput: =1.0`; for ryzens, `Block RThroughput: <=0.5`
So pick cost of `1`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110705
2021-09-29 21:52:45 +03:00
Roman Lebedev 08face1f9a
[X86][Costmodel] Load/store i8 Stride=2 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

Identical to VF=2.

For load we have:
https://godbolt.org/z/sGE41GYo7 - for intels `Block RThroughput: =2.0`; for ryzens, `Block RThroughput: <=1.0`
So pick cost of `2`.

For store we have:
https://godbolt.org/z/ba5r3s9xa - for intels `Block RThroughput: =1.0`; for ryzens, `Block RThroughput: <=0.5`
So pick cost of `1`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110704
2021-09-29 21:52:45 +03:00
Roman Lebedev 7d52628eb0
[X86][Costmodel] Load/store i8 Stride=2 VF=2 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/caKqjr9hb - for intels `Block RThroughput: =2.0`; for ryzens, `Block RThroughput: <=1.0`
So pick cost of `2`.

For store we have:
https://godbolt.org/z/6TTn3eKj8 - for intels `Block RThroughput: =1.0`; for ryzens, `Block RThroughput: <=0.5`
So pick cost of `1`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110702
2021-09-29 21:52:44 +03:00
Roman Lebedev b6b7860954
[X86][Costmodel] Load/store i16 Stride=6 VF=16 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For this tuple, measuring becomes problematic since there's a lot of spilling going on,
but apparently all these memory ops do not affect worst-case estimate at all here.

For load we have:
https://godbolt.org/z/5qGb9odP6 - for intels `Block RThroughput: <=106.0`; for ryzens, `Block RThroughput: <=34.8`
So pick cost of `106`.

For store we have:
https://godbolt.org/z/KrWcv4Ph7 - for intels `Block RThroughput: =58.0`; for ryzens, `Block RThroughput: <=20.5`
So pick cost of `58`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110593
2021-09-28 19:15:08 +03:00
Roman Lebedev 24e42f7d28
[X86][Costmodel] Load/store i16 Stride=6 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/3Tc5s897j - for intels `Block RThroughput: =39.0`; for ryzens, `Block RThroughput: <=13.5`
So pick cost of `39`.

For store we have:
https://godbolt.org/z/fo1h9E67e - for intels `Block RThroughput: =21.0`; for ryzens, `Block RThroughput: <=12.0`
So pick cost of `21`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110592
2021-09-28 19:15:07 +03:00
Roman Lebedev b3011bcc78
[X86][Costmodel] Load/store i16 Stride=6 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/1Wcaf9c7T - for intels `Block RThroughput: =9.0`; for ryzens, `Block RThroughput: <=4.5`
So pick cost of `9`.

For store we have:
https://godbolt.org/z/1Wcaf9c7T - for intels `Block RThroughput: =15.0`; for ryzens, `Block RThroughput: <=6.0`
So pick cost of `15`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110591
2021-09-28 19:15:01 +03:00
Roman Lebedev aa93c55889
[X86][Costmodel] Load/store i16 Stride=6 VF=2 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/bhscej4WM - for intels `Block RThroughput: =13.0`; for ryzens, `Block RThroughput: <=7.0`
So pick cost of `13`.

For store we have:
https://godbolt.org/z/Yf4Pfnxbq - for intels `Block RThroughput: =10.0`; for ryzens, `Block RThroughput: <=3.5`
So pick cost of `10`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110590
2021-09-28 19:14:56 +03:00
Roman Lebedev 2a7a768dad
[X86][Costmodel] Load/store i16 Stride=4 VF=32 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For this tuple, measuring becomes problematic since there's a lot of spilling going on,
but apparently all these memory ops do not affect worst-case estimate at all here.

For load we have:
https://godbolt.org/z/zP4hd8MT6 - for intels `Block RThroughput: =150.0`; for ryzens, `Block RThroughput: <=59`
So pick cost of `150`.

For store we have:
https://godbolt.org/z/vKb8zTK8E - for intels `Block RThroughput: =32.0`; for ryzens, `Block RThroughput: <=24.0`
So pick cost of `64`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110548
2021-09-27 22:20:01 +03:00
Roman Lebedev ee5a050e2e
[X86][Costmodel] Load/store i16 Stride=4 VF=16 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/Wd9cKab83 - for intels `Block RThroughput: =75.0`; for ryzens, `Block RThroughput: <=29.5`
So pick cost of `75`. (note that `# 32-byte Reload` does not affect throughput there.)

For store we have:
https://godbolt.org/z/Wd9cKab83 - for intels `Block RThroughput: =32.0`; for ryzens, `Block RThroughput: <=12.0`
So pick cost of `32`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110543
2021-09-27 22:20:01 +03:00
Roman Lebedev 5615d6a6dd
[X86][Costmodel] Load/store i16 Stride=4 VF=8 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/dd8T5P471 - for intels `Block RThroughput: =33.0`; for ryzens, `Block RThroughput: <=14.5`
So pick cost of `33`.

For store we have:
https://godbolt.org/z/zPxcKWhn4 - for intels `Block RThroughput: =10.0`; for ryzens, `Block RThroughput: <=6.0`
So pick cost of `10`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110541
2021-09-27 22:20:01 +03:00
Roman Lebedev df2b42d12e
[X86][Costmodel] Load/store i16 Stride=4 VF=4 interleaving costs
The only sched models that for cpu's that support avx2
but not avx512 are: haswell, broadwell, skylake, zen1-3

For load we have:
https://godbolt.org/z/rnsf639Wh - for intels `Block RThroughput: =17.0`; for ryzens, `Block RThroughput: <=7.5`
So pick cost of `17`.

For store we have:
https://godbolt.org/z/565KKrcY6 - for intels `Block RThroughput: =6.0`; for ryzens, `Block RThroughput: =2.0`
So pick cost of `6`.

I'm directly using the shuffling asm the llc produced,
without any manual fixups that may be needed
to ensure sequential execution.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D110537
2021-09-27 22:20:01 +03:00