[ExecuTorch] Add quantized kv cache to llama

[kimishpatel]

Stack from ghstack (oldest at bottom):

• [Executorch][quant] Optimize per channel dequantize #5604
• [Executorch][llama] Add custom_sdpa and use that instead of sdpa_with_kv_cache #5603
• [Executorch] Update EXECUTORCH_LIBRARY macro #5602
• [Executorch][llama] Refactoring sdpa #5601
• [Executorch][llama] Update SDPA op to use quantized kv cache #5600
• Add update_quantized_cache op #5527
• Refactor custom SDPA op to separate kv cache update from the custom sdpa op #5599
• -> [ExecuTorch] Add quantized kv cache to llama #5598
• Fix dequantize per channel to handle double scale type #5524
• [ExecuTorch] Some updated to kv cache #5597

This diff adds

• quantized kv cache imlementation and apply corresponding source transforms
• add support for quant/dequant per token in quantized kernels

Differential Revision: D62301844

[pytorch-bot]

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❌ 27 New Failures

As of commit 5e5f855 with merge base b2517d6 ():

NEW FAILURES - The following jobs have failed:

• Build documentation / build (buck2) / Build doc (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• Lint / lintrunner / linux-job (gh)
  >>> Lint for kernels/quantized/test/test_quant_dequant_per_token.py:
• pull / test-custom-ops-linux (buck2) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-custom-ops-linux (cmake) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-llama-runner-linux (bf16, buck2, portable) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-llama-runner-linux (bf16, cmake, portable) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-llama-runner-linux (fp32, buck2, portable) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-llama-runner-linux (fp32, buck2, xnnpack+custom) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-llama-runner-linux (fp32, buck2, xnnpack+custom+qe) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-llama-runner-linux (fp32, cmake, portable) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-llama-runner-linux (fp32, cmake, xnnpack+custom) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-llama-runner-linux (fp32, cmake, xnnpack+custom+qe) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-llama-runner-qnn-linux (fp32, cmake, qnn) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-llava-runner-linux / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-models-linux (buck2, mv3, portable, linux.2xlarge, 90) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-models-linux (buck2, mv3, xnnpack-quantization-delegation, linux.2xlarge, 90) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-models-linux (cmake, mv3, portable, linux.2xlarge, 90) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-models-linux (cmake, mv3, xnnpack-quantization-delegation, linux.2xlarge, 90) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-models-linux (cmake, vit, portable, linux.2xlarge, 90) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-models-linux (cmake, vit, xnnpack-delegation, linux.2xlarge, 90) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-pybind-build-linux (cmake) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-quantized-aot-lib-linux (cmake) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-selective-build-linux (buck2) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / test-selective-build-linux (cmake) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / unittest / linux / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]
• pull / unittest / macos / macos-job (gh)
  /Users/ec2-user/runner/_work/executorch/executorch/pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long long' in initializer list [-Wc++11-narrowing]
• pull / unittest-arm (buck2) / linux-job (gh)
  /pytorch/executorch/kernels/quantized/cpu/op_dequantize.cpp:400:42: error: non-constant-expression cannot be narrowed from type 'size_t' (aka 'unsigned long') to 'long' in initializer list [-Wc++11-narrowing]

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This pull request was exported from Phabricator. Differential Revision: D62301844