diff options
Diffstat (limited to 'lib/IR/Instruction.cpp')
| -rw-r--r-- | lib/IR/Instruction.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/IR/Instruction.cpp b/lib/IR/Instruction.cpp index 28cc4cb9f1..6becc1e43e 100644 --- a/lib/IR/Instruction.cpp +++ b/lib/IR/Instruction.cpp @@ -331,6 +331,10 @@ bool Instruction::isIdenticalToWhenDefined(const Instruction *I) const { getType() != I->getType()) return false; + // If both instructions have no operands, they are identical. + if (getNumOperands() == 0 && I->getNumOperands() == 0) + return haveSameSpecialState(this, I); + // We have two instructions of identical opcode and #operands. Check to see // if all operands are the same. if (!std::equal(op_begin(), op_end(), I->op_begin())) |