diff options
| author | Andrew Lenharth <andrewl@lenharth.org> | 2007-02-13 00:37:50 +0000 |
|---|---|---|
| committer | Andrew Lenharth <andrewl@lenharth.org> | 2007-02-13 00:37:50 +0000 |
| commit | f7e804b683d529e938d8144996558ff8d2af5025 (patch) | |
| tree | 0e8f1e0e4231184efe85443ec52a187b0c6fefa1 | |
| parent | 1bc3fa6451f9704899316bacdebe6dd3908f17bd (diff) | |
I love non-deturminism. Returning objects with references to stack objects is a bad idea (TM).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34210 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | include/llvm/Support/PatternMatch.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/include/llvm/Support/PatternMatch.h b/include/llvm/Support/PatternMatch.h index 3cf037fa05..ab9e45f312 100644 --- a/include/llvm/Support/PatternMatch.h +++ b/include/llvm/Support/PatternMatch.h @@ -223,19 +223,22 @@ inline Shr_match<LHS, RHS> m_Shr(const LHS &L, const RHS &R) { template<typename LHS_t, typename RHS_t, typename Class, typename OpcType> struct BinaryOpClass_match { - OpcType &Opcode; + OpcType *Opcode; LHS_t L; RHS_t R; BinaryOpClass_match(OpcType &Op, const LHS_t &LHS, const RHS_t &RHS) - : Opcode(Op), L(LHS), R(RHS) {} + : Opcode(&Op), L(LHS), R(RHS) {} + BinaryOpClass_match(const LHS_t &LHS, const RHS_t &RHS) + : Opcode(0), L(LHS), R(RHS) {} template<typename OpTy> bool match(OpTy *V) { if (Class *I = dyn_cast<Class>(V)) if (L.match(I->getOperand(0)) && R.match(I->getOperand(1))) { - Opcode = I->getOpcode(); + if (Opcode) + *Opcode = I->getOpcode(); return true; } #if 0 // Doesn't handle constantexprs yet! @@ -257,9 +260,8 @@ m_Shift(Instruction::BinaryOps &Op, const LHS &L, const RHS &R) { template<typename LHS, typename RHS> inline BinaryOpClass_match<LHS, RHS, BinaryOperator, Instruction::BinaryOps> m_Shift(const LHS &L, const RHS &R) { - Instruction::BinaryOps Op; return BinaryOpClass_match<LHS, RHS, - BinaryOperator, Instruction::BinaryOps>(Op, L, R); + BinaryOperator, Instruction::BinaryOps>(L, R); } //===----------------------------------------------------------------------===// |