-Constant *ConstantFoldCompareInstOperands(unsigned Predicate,
- Constant *LHS, Constant *RHS,
- const TargetData *TD = 0);
+ Constant *
+ ConstantFoldCompareInstOperands(unsigned Predicate, Constant *LHS,
+ Constant *RHS, const DataLayout &DL,
+ const TargetLibraryInfo *TLI = nullptr);
+
+/// ConstantFoldInsertValueInstruction - Attempt to constant fold an insertvalue
+/// instruction with the specified operands and indices. The constant result is
+/// returned if successful; if not, null is returned.
+Constant *ConstantFoldInsertValueInstruction(Constant *Agg, Constant *Val,
+ ArrayRef<unsigned> Idxs);
+
+/// \brief Attempt to constant fold an extractvalue instruction with the
+/// specified operands and indices. The constant result is returned if
+/// successful; if not, null is returned.
+Constant *ConstantFoldExtractValueInstruction(Constant *Agg,
+ ArrayRef<unsigned> Idxs);
+
+/// \brief Attempt to constant fold an extractelement instruction with the
+/// specified operands and indices. The constant result is returned if
+/// successful; if not, null is returned.
+Constant *ConstantFoldExtractElementInstruction(Constant *Val, Constant *Idx);