Dmitri Smirnov f19c673595 If Branch Constant Folding (#18105) ... ### Description When and if `If` condition proves to be a constant value, inline the corresponding subgraph yielding to more constant folding and optimization. ### Motivation and Context Newly converted models feature lots of nested `If` nodes that can be inlined and collapsed. In particular, for the sample models we are gaining on TorchScript exported models. For `HF Mobile Bert Dynamo` runtime went down from 0.069 -> 0.046. In total, AOT inlining + `If` constant folding yields improvement of about 50% 0.102 -> 0.046. Brining us very close to TorchScript exported models. `HF Bart Dynamo` further improves 0.668 -> 0.45. AOT + `If` constant folding improves 0.98 -> 0.45 Earlier the size of HF Mobile Bert **161Mb+**, now **98Mb** HF Bart Dynamo pre-optimized model was about **1.2Gb**. It is now **710MB** 		2023-11-13 17:33:30 -08:00
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onnxruntime/core	If Branch Constant Folding (#18105)	2023-11-13 17:33:30 -08:00