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/llvm-project-15.0.7/llvm/lib/Transforms/InstCombine/
H A DInstCombineShifts.cpp1315 Instruction *MaybeTrunc; in foldVariableSignZeroExtensionOfVariableHighBitExtract() local
1318 m_AShr(m_Shl(m_Instruction(MaybeTrunc), in foldVariableSignZeroExtensionOfVariableHighBitExtract()
1328 match(MaybeTrunc, m_TruncOrSelf(m_Instruction(HighBitExtract))); in foldVariableSignZeroExtensionOfVariableHighBitExtract()
1329 bool HadTrunc = MaybeTrunc != HighBitExtract; in foldVariableSignZeroExtensionOfVariableHighBitExtract()
1348 return replaceInstUsesWith(OldAShr, MaybeTrunc); in foldVariableSignZeroExtensionOfVariableHighBitExtract()