[Pytorch] Provide API to preserve source range and callstack information during graph rewrite (#58300)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/58300
Current state: During graph rewriting that can fuse nodes or add nodes
result in new nodes without debug information that was available in
original node. Thus we lose this information during graph rewrite.
This PR changes graph rewriting API to let user specify how the values
in the replacement pattern map to values in the pattern to be matched.
Then the graph rewriting will copy source range and inlined callstack
from the matched nodes onto the nodes being inserted.
(Note: this ignores all push blocking failures!)
Test Plan:
python test/test_jit.py
TestJit.test_pattern_based_rewrite_with_source_range_preserved
Imported from OSS
Reviewed By: malfet
Differential Revision: D28512465
fbshipit-source-id: 863173c29de726be85b3acbd3ddf3257eea36d13
