//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
/// m_ConstantInt() - Match an arbitrary ConstantInt and ignore it.
inline leaf_ty<ConstantInt> m_ConstantInt() { return leaf_ty<ConstantInt>(); }
+template<int64_t Val>
+struct constantint_ty {
+ template<typename ITy>
+ bool match(ITy *V) {
+ if (const ConstantInt *CI = dyn_cast<ConstantInt>(V)) {
+ const APInt &CIV = CI->getValue();
+ if (Val >= 0)
+ return CIV == Val;
+ // If Val is negative, and CI is shorter than it, truncate to the right
+ // number of bits. If it is larger, then we have to sign extend. Just
+ // compare their negated values.
+ return -CIV == -Val;
+ }
+ return false;
+ }
+};
+
+/// m_ConstantInt(int64_t) - Match a ConstantInt with a specific value
+/// and ignore it.
+template<int64_t Val>
+inline constantint_ty<Val> m_ConstantInt() {
+ return constantint_ty<Val>();
+}
+
struct zero_ty {
template<typename ITy>
bool match(ITy *V) {
/// m_ConstantInt - Match a ConstantInt, capturing the value if we match.
inline bind_ty<ConstantInt> m_ConstantInt(ConstantInt *&CI) { return CI; }
+/// specificval_ty - Match a specified Value*.
+struct specificval_ty {
+ const Value *Val;
+ specificval_ty(const Value *V) : Val(V) {}
+
+ template<typename ITy>
+ bool match(ITy *V) {
+ return V == Val;
+ }
+};
+
+/// m_Specific - Match if we have a specific specified value.
+inline specificval_ty m_Specific(const Value *V) { return V; }
+
+
//===----------------------------------------------------------------------===//
// Matchers for specific binary operators.
//
-template<typename LHS_t, typename RHS_t,
+template<typename LHS_t, typename RHS_t,
unsigned Opcode, typename ConcreteTy = BinaryOperator>
struct BinaryOp_match {
LHS_t L;
return BinaryOp_match<LHS, RHS, Instruction::Add>(L, R);
}
+template<typename LHS, typename RHS>
+inline BinaryOp_match<LHS, RHS, Instruction::FAdd> m_FAdd(const LHS &L,
+ const RHS &R) {
+ return BinaryOp_match<LHS, RHS, Instruction::FAdd>(L, R);
+}
+
template<typename LHS, typename RHS>
inline BinaryOp_match<LHS, RHS, Instruction::Sub> m_Sub(const LHS &L,
const RHS &R) {
return BinaryOp_match<LHS, RHS, Instruction::Sub>(L, R);
}
+template<typename LHS, typename RHS>
+inline BinaryOp_match<LHS, RHS, Instruction::FSub> m_FSub(const LHS &L,
+ const RHS &R) {
+ return BinaryOp_match<LHS, RHS, Instruction::FSub>(L, R);
+}
+
template<typename LHS, typename RHS>
inline BinaryOp_match<LHS, RHS, Instruction::Mul> m_Mul(const LHS &L,
const RHS &R) {
return BinaryOp_match<LHS, RHS, Instruction::Mul>(L, R);
}
+template<typename LHS, typename RHS>
+inline BinaryOp_match<LHS, RHS, Instruction::FMul> m_FMul(const LHS &L,
+ const RHS &R) {
+ return BinaryOp_match<LHS, RHS, Instruction::FMul>(L, R);
+}
+
template<typename LHS, typename RHS>
inline BinaryOp_match<LHS, RHS, Instruction::UDiv> m_UDiv(const LHS &L,
const RHS &R) {
}
template<typename LHS, typename RHS>
-inline BinaryOp_match<LHS, RHS, Instruction::Shl> m_Shl(const LHS &L,
+inline BinaryOp_match<LHS, RHS, Instruction::Shl> m_Shl(const LHS &L,
const RHS &R) {
return BinaryOp_match<LHS, RHS, Instruction::Shl>(L, R);
}
template<typename LHS, typename RHS>
-inline BinaryOp_match<LHS, RHS, Instruction::LShr> m_LShr(const LHS &L,
+inline BinaryOp_match<LHS, RHS, Instruction::LShr> m_LShr(const LHS &L,
const RHS &R) {
return BinaryOp_match<LHS, RHS, Instruction::LShr>(L, R);
}
template<typename LHS, typename RHS>
-inline BinaryOp_match<LHS, RHS, Instruction::AShr> m_AShr(const LHS &L,
+inline BinaryOp_match<LHS, RHS, Instruction::AShr> m_AShr(const LHS &L,
const RHS &R) {
return BinaryOp_match<LHS, RHS, Instruction::AShr>(L, R);
}
template<typename LHS, typename RHS>
inline BinaryOpClass_match<LHS, RHS, BinaryOperator, Instruction::BinaryOps>
m_Shift(Instruction::BinaryOps &Op, const LHS &L, const RHS &R) {
- return BinaryOpClass_match<LHS, RHS,
+ return BinaryOpClass_match<LHS, RHS,
BinaryOperator, Instruction::BinaryOps>(Op, L, R);
}
template<typename LHS, typename RHS>
inline BinaryOpClass_match<LHS, RHS, BinaryOperator, Instruction::BinaryOps>
m_Shift(const LHS &L, const RHS &R) {
- return BinaryOpClass_match<LHS, RHS,
+ return BinaryOpClass_match<LHS, RHS,
BinaryOperator, Instruction::BinaryOps>(L, R);
}
FCmpInst, FCmpInst::Predicate>(Pred, L, R);
}
+//===----------------------------------------------------------------------===//
+// Matchers for SelectInst classes
+//
+
+template<typename Cond_t, typename LHS_t, typename RHS_t>
+struct SelectClass_match {
+ Cond_t C;
+ LHS_t L;
+ RHS_t R;
+
+ SelectClass_match(const Cond_t &Cond, const LHS_t &LHS,
+ const RHS_t &RHS)
+ : C(Cond), L(LHS), R(RHS) {}
+
+ template<typename OpTy>
+ bool match(OpTy *V) {
+ if (SelectInst *I = dyn_cast<SelectInst>(V))
+ return C.match(I->getOperand(0)) &&
+ L.match(I->getOperand(1)) &&
+ R.match(I->getOperand(2));
+ return false;
+ }
+};
+
+template<typename Cond, typename LHS, typename RHS>
+inline SelectClass_match<Cond, RHS, LHS>
+m_Select(const Cond &C, const LHS &L, const RHS &R) {
+ return SelectClass_match<Cond, LHS, RHS>(C, L, R);
+}
+
+/// m_SelectCst - This matches a select of two constants, e.g.:
+/// m_SelectCst(m_Value(V), -1, 0)
+template<int64_t L, int64_t R, typename Cond>
+inline SelectClass_match<Cond, constantint_ty<L>, constantint_ty<R> >
+m_SelectCst(const Cond &C) {
+ return SelectClass_match<Cond, constantint_ty<L>,
+ constantint_ty<R> >(C, m_ConstantInt<L>(),
+ m_ConstantInt<R>());
+}
+
+
+//===----------------------------------------------------------------------===//
+// Matchers for CastInst classes
+//
+
+template<typename Op_t, typename Class>
+struct CastClass_match {
+ Op_t Op;
+
+ CastClass_match(const Op_t &OpMatch) : Op(OpMatch) {}
+
+ template<typename OpTy>
+ bool match(OpTy *V) {
+ if (Class *I = dyn_cast<Class>(V))
+ return Op.match(I->getOperand(0));
+ return false;
+ }
+};
+
+template<typename Class, typename OpTy>
+inline CastClass_match<OpTy, Class> m_Cast(const OpTy &Op) {
+ return CastClass_match<OpTy, Class>(Op);
+}
+
+
//===----------------------------------------------------------------------===//
// Matchers for unary operators
//
inline not_match<LHS> m_Not(const LHS &L) { return L; }
+template<typename LHS_t>
+struct neg_match {
+ LHS_t L;
+
+ neg_match(const LHS_t &LHS) : L(LHS) {}
+
+ template<typename OpTy>
+ bool match(OpTy *V) {
+ if (Instruction *I = dyn_cast<Instruction>(V))
+ if (I->getOpcode() == Instruction::Sub)
+ return matchIfNeg(I->getOperand(0), I->getOperand(1));
+ if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V))
+ if (CE->getOpcode() == Instruction::Sub)
+ return matchIfNeg(CE->getOperand(0), CE->getOperand(1));
+ if (ConstantInt *CI = dyn_cast<ConstantInt>(V))
+ return L.match(ConstantExpr::getNeg(CI));
+ return false;
+ }
+private:
+ bool matchIfNeg(Value *LHS, Value *RHS) {
+ return LHS == ConstantExpr::getZeroValueForNegationExpr(LHS->getType()) &&
+ L.match(RHS);
+ }
+};
+
+template<typename LHS>
+inline neg_match<LHS> m_Neg(const LHS &L) { return L; }
+
+
+template<typename LHS_t>
+struct fneg_match {
+ LHS_t L;
+
+ fneg_match(const LHS_t &LHS) : L(LHS) {}
+
+ template<typename OpTy>
+ bool match(OpTy *V) {
+ if (Instruction *I = dyn_cast<Instruction>(V))
+ if (I->getOpcode() == Instruction::FSub)
+ return matchIfFNeg(I->getOperand(0), I->getOperand(1));
+ if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V))
+ if (CE->getOpcode() == Instruction::FSub)
+ return matchIfFNeg(CE->getOperand(0), CE->getOperand(1));
+ if (ConstantFP *CF = dyn_cast<ConstantFP>(V))
+ return L.match(ConstantExpr::getFNeg(CF));
+ return false;
+ }
+private:
+ bool matchIfFNeg(Value *LHS, Value *RHS) {
+ return LHS == ConstantExpr::getZeroValueForNegationExpr(LHS->getType()) &&
+ L.match(RHS);
+ }
+};
+
+template<typename LHS>
+inline fneg_match<LHS> m_FNeg(const LHS &L) { return L; }
+
+
//===----------------------------------------------------------------------===//
// Matchers for control flow
//
};
template<typename Cond_t>
-inline brc_match<Cond_t> m_Br(const Cond_t &C, BasicBlock *&T, BasicBlock *&F){
+inline brc_match<Cond_t> m_Br(const Cond_t &C, BasicBlock *&T, BasicBlock *&F) {
return brc_match<Cond_t>(C, T, F);
}
-
-}} // end llvm::match
-
+} // end namespace PatternMatch
+} // end namespace llvm
#endif
-
projects / oota-llvm.git / blobdiff