Muhammad Abdul 92da91f93e
[DAG] SDPatternMatch - add a m_SpecificNeg() matcher (#173807)
Resolves #173770 

Adds m_SpecificNeg(SDValue V) to match either m_Neg(m_Specific(V)) or
constant/build-vector where elements are the negation of V's constants

Has unit test coverage on SelectionDAGPatternMatchTest.cpp
2026-01-06 13:42:33 +00:00
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