[llvm] [DAG] SDPatternMatch m_Zero/m_One/m_AllOnes have inconsistent undef h… (PR #147044)

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Mon Jul 7 02:10:40 PDT 2025

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woruyu wrote:

> Probably should get tests in unittests/CodeGen/SelectionDAGPatternMatchTest.cpp
That makes sense，I think adding test for m_Zero/m_One/m_AllOnes default behavior and supportting peekthrough bitcast is a better choice, I will add it!


https://github.com/llvm/llvm-project/pull/147044

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