[Dy2St][CINN] Deprecate `build_strategy.build_cinn_pass` and replace it with `backend` option#71815

Merged

SigureMo merged 3 commits intoPaddlePaddle:developfrom

cattidea:dy2st/replace-build-straategy-with-backend

Mar 21, 2025

Commits on Mar 20, 2025

Commits on Mar 21, 2025

skip some changes in legacy ir mode
SigureMo
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