Jamie Schmeiser a6930617fe Introduce -print-changed=[diff | diff-quiet] which show changes in patch-like format ... Summary: Introduce base classes that hold a textual represent of the IR based on basic blocks and a base class for comparing this representation. A new change printer is introduced that uses these classes to save and compare representations of the IR before and after each pass. It only reports when changes are made by a pass (similar to -print-changed) except that the changes are shown in a patch-like format with those lines that are removed shown in red prefixed with '-' and those added shown in green with '+'. This functionality was introduced in my tutorial at the 2020 virtual developer's meeting. Author: Jamie Schmeiser <schmeise@ca.ibm.com> Reviewed By: aeubanks (Arthur Eubanks) Differential Revision: https://reviews.llvm.org/D91890		2021-02-08 10:11:22 -05:00
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lit.local.cfg
print-changed-diff.ll