…patial(47) (#452)

Introduce new IR optimization pass `spatial_simplification_pass`.
It removes all `1` from `spatial` mapping.

E.g. transform `spatial(1,47)` to `spatial(47)`.

`spatial_simplification_pass` doesn't help a lot right now but would bring perf improvement together with #449

### Performance
 - synthetic test, elementwise add `a = b + 1`. Improvement around 2%

 - models (together with #452 )

|model|latency|prev_latency|delta|
|--------|--------|--------|--------|
|bert-base-uncased|19.6886|20.0891|2.034
|densenet121|35.0828|35.2025|0.341
|efficientnet_b0|18.8482|18.9655|0.622
|mobilenet_v2|11.5672|11.5901|0.198
|resnet50|29.0077|29.6469|2.204
|vit_b_16|123.344|126.705|2.725
|**GMEAN**| | |**1.349**

  
|model|latency|prev_latency|delta|
|--------|--------|--------|--------|
|bert-base-uncased|19.6886|19.9814|1.487
|densenet121|35.0828|35.2032|0.343
|efficientnet_b0|18.8482|18.9711|0.652
|mobilenet_v2|11.5672|11.5913|0.208
|resnet50|29.0077|29.101|0.322
|vit_b_16|123.344|124.837|1.21
|**GMEAN**| | |**0.702**

The above comparisons were done against exactly the same `main` branch.
Yes, we have a big fluctuation in perf results :(


### TODO
- doesn't work with dynamic shapes yet
- only `spatial` mapping is supported right now. Another mapping support
should be investigating

…patial(47) (#452)

Introduce new IR optimization pass `spatial_simplification_pass`.
It removes all `1` from `spatial` mapping.

E.g. transform `spatial(1,47)` to `spatial(47)`.

`spatial_simplification_pass` doesn't help a lot right now but would bring perf improvement together with #449

### Performance
 - synthetic test, elementwise add `a = b + 1`. Improvement around 2%

 - models (together with #452 )

|model|latency|prev_latency|delta|
|--------|--------|--------|--------|
|bert-base-uncased|19.6886|20.0891|2.034
|densenet121|35.0828|35.2025|0.341
|efficientnet_b0|18.8482|18.9655|0.622
|mobilenet_v2|11.5672|11.5901|0.198
|resnet50|29.0077|29.6469|2.204
|vit_b_16|123.344|126.705|2.725
|**GMEAN**| | |**1.349**

  
|model|latency|prev_latency|delta|
|--------|--------|--------|--------|
|bert-base-uncased|19.6886|19.9814|1.487
|densenet121|35.0828|35.2032|0.343
|efficientnet_b0|18.8482|18.9711|0.652
|mobilenet_v2|11.5672|11.5913|0.208
|resnet50|29.0077|29.101|0.322
|vit_b_16|123.344|124.837|1.21
|**GMEAN**| | |**0.702**

The above comparisons were done against exactly the same `main` branch.
Yes, we have a big fluctuation in perf results :(


### TODO
- doesn't work with dynamic shapes yet
- only `spatial` mapping is supported right now. Another mapping support
should be investigating

…patial(47) (#452)

Introduce new IR optimization pass `spatial_simplification_pass`.
It removes all `1` from `spatial` mapping.

E.g. transform `spatial(1,47)` to `spatial(47)`.

`spatial_simplification_pass` doesn't help a lot right now but would bring perf improvement together with #449

### Performance
 - synthetic test, elementwise add `a = b + 1`. Improvement around 2%

 - models (together with #452 )

|model|latency|prev_latency|delta|
|--------|--------|--------|--------|
|bert-base-uncased|19.6886|20.0891|2.034
|densenet121|35.0828|35.2025|0.341
|efficientnet_b0|18.8482|18.9655|0.622
|mobilenet_v2|11.5672|11.5901|0.198
|resnet50|29.0077|29.6469|2.204
|vit_b_16|123.344|126.705|2.725
|**GMEAN**| | |**1.349**

  
|model|latency|prev_latency|delta|
|--------|--------|--------|--------|
|bert-base-uncased|19.6886|19.9814|1.487
|densenet121|35.0828|35.2032|0.343
|efficientnet_b0|18.8482|18.9711|0.652
|mobilenet_v2|11.5672|11.5913|0.208
|resnet50|29.0077|29.101|0.322
|vit_b_16|123.344|124.837|1.21
|**GMEAN**| | |**0.702**

The above comparisons were done against exactly the same `main` branch.
Yes, we have a big fluctuation in perf results :(


### TODO
- doesn't work with dynamic shapes yet
- only `spatial` mapping is supported right now. Another mapping support
should be investigating