FP8 OCP to FP8 FNUZ on hardware with only FP8 FNUZ support

[CharlieL7]

• NANOO is short for NAN On Overflow, the data type comes from this paper: https://arxiv.org/pdf/2206.02915
• Implements the method written about in Convert OCP FP8 model to FNUZ model inside MIGraphX #2717
• This pass must run before simplify_qdq so that the adjusted scales and zero points are propagated to after the quantized operator.
• The test in test/fp8_ocp_to_nanoo.cpp checks the pass works with simplify_qdq and does the expected operations
• The test in test/ref/fp8_ocp_to_nanoo.cpp checks the pass produces the same result before and after
• I will make a separate PR that removes the gpu context changes to get the gfx number
• Fixed the cpp_generator that was using __builtin_nan incorrectly

[codecov]

Codecov Report

Attention: Patch coverage is 97.43590% with 2 lines in your changes missing coverage. Please review.

Project coverage is 92.18%. Comparing base (13159b3) to head (2f2dda1).
Report is 6 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/fp8_ocp_to_fnuz.cpp	98.50%	1 Missing ⚠️
src/simplify_qdq.cpp	75.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3684      +/-   ##
===========================================
+ Coverage    92.16%   92.18%   +0.01%     
===========================================
  Files          515      518       +3     
  Lines        21978    22047      +69     
===========================================
+ Hits         20256    20324      +68     
- Misses        1722     1723       +1     

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[CharlieL7]

Fixed the bug in the the pointwise compilation. __builtin_nan requires a string input that affects the most significant bits.

[migraphx-bot]

Test	Batch	Rate new 3c36b9	Rate old 79a256	Diff	Compare
torchvision-resnet50	64	3,258.74	3,254.68	0.12%	✅
torchvision-resnet50_fp16	64	6,984.47	6,988.98	-0.06%	✅
torchvision-densenet121	32	2,434.85	2,435.20	-0.01%	✅
torchvision-densenet121_fp16	32	4,078.51	4,089.35	-0.27%	✅
torchvision-inceptionv3	32	1,628.47	1,629.15	-0.04%	✅
torchvision-inceptionv3_fp16	32	2,747.68	2,750.39	-0.10%	✅
cadene-inceptionv4	16	765.40	765.66	-0.03%	✅
cadene-resnext64x4	16	812.27	812.33	-0.01%	✅
slim-mobilenet	64	7,465.27	7,465.36	-0.00%	✅
slim-nasnetalarge	64	209.02	209.02	0.00%	✅
slim-resnet50v2	64	3,439.49	3,439.27	0.01%	✅
bert-mrpc-onnx	8	1,150.69	1,145.81	0.43%	✅
bert-mrpc-tf	1	503.08	466.39	7.87%	🔆
pytorch-examples-wlang-gru	1	410.04	421.94	-2.82%	✅
pytorch-examples-wlang-lstm	1	387.84	381.01	1.79%	✅
torchvision-resnet50_1	1	805.75	763.70	5.51%	🔆
cadene-dpn92_1	1	401.37	434.24	-7.57%	🔴
cadene-resnext101_1	1	382.46	383.59	-0.29%	✅
onnx-taau-downsample	1	346.38	346.01	0.11%	✅
dlrm-criteoterabyte	1	33.35	33.33	0.06%	✅
dlrm-criteoterabyte_fp16	1	52.76	52.73	0.05%	✅
agentmodel	1	8,215.78	8,229.23	-0.16%	✅
unet_fp16	2	58.87	58.93	-0.09%	✅
resnet50v1_fp16	1	975.05	1,025.60	-4.93%	🔴
resnet50v1_int8	1	1,027.54	1,052.08	-2.33%	✅
bert_base_cased_fp16	64	1,170.31	1,169.64	0.06%	✅
bert_large_uncased_fp16	32	363.18	363.34	-0.04%	✅
bert_large_fp16	1	198.76	198.80	-0.02%	✅
distilgpt2_fp16	16	2,199.98	2,201.30	-0.06%	✅
yolov5s	1	533.93	529.55	0.83%	✅
tinyllama	1	43.41	43.36	0.10%	✅
vicuna-fastchat	1	174.80	170.51	2.51%	✅
whisper-tiny-encoder	1	417.32	417.88	-0.13%	✅
whisper-tiny-decoder	1	433.93	425.43	2.00%	✅

This build is not recommended to merge 🔴

[migraphx-bot]

     ✅ bert-mrpc-onnx: PASSED: MIGraphX meets tolerance

     ✅ bert-mrpc-tf: PASSED: MIGraphX meets tolerance

     ✅ pytorch-examples-wlang-gru: PASSED: MIGraphX meets tolerance

     ✅ pytorch-examples-wlang-lstm: PASSED: MIGraphX meets tolerance

     ✅ torchvision-resnet50_1: PASSED: MIGraphX meets tolerance

     ✅ cadene-dpn92_1: PASSED: MIGraphX meets tolerance

     ✅ cadene-resnext101_1: PASSED: MIGraphX meets tolerance

     ✅ dlrm-criteoterabyte: PASSED: MIGraphX meets tolerance

     ✅ agentmodel: PASSED: MIGraphX meets tolerance

     ✅ unet: PASSED: MIGraphX meets tolerance

     ✅ resnet50v1: PASSED: MIGraphX meets tolerance

     ✅ bert_base_cased_fp16: PASSED: MIGraphX meets tolerance

🔴bert_large_uncased_fp16: FAILED: MIGraphX is not within tolerance - check verbose output

     ✅ bert_large: PASSED: MIGraphX meets tolerance

     ✅ yolov5s: PASSED: MIGraphX meets tolerance

     ✅ tinyllama: PASSED: MIGraphX meets tolerance

     ✅ vicuna-fastchat: PASSED: MIGraphX meets tolerance

     ✅ whisper-tiny-encoder: PASSED: MIGraphX meets tolerance

     ✅ whisper-tiny-decoder: PASSED: MIGraphX meets tolerance

     ✅ distilgpt2_fp16: PASSED: MIGraphX meets tolerance

[TedThemistokleous]

Appreciate this comment.

[TedThemistokleous]

Makes sense. Add some additional tests for some of the coverage warnings and that's about it.

[TedThemistokleous]

Disregard, you're already like 97% covered here. Looks good