diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/SCCP.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/llvm/lib/Transforms/Scalar/SCCP.cpp b/llvm/lib/Transforms/Scalar/SCCP.cpp index 34be9069248..9c5fa5c1426 100644 --- a/llvm/lib/Transforms/Scalar/SCCP.cpp +++ b/llvm/lib/Transforms/Scalar/SCCP.cpp @@ -910,9 +910,10 @@ void SCCPSolver::visitBinaryOperator(Instruction &I) { // Otherwise, one of our operands is overdefined. Try to produce something // better than overdefined with some tricks. - - // If this is an AND or OR with 0 or -1, it doesn't matter that the other - // operand is overdefined. + // If this is: + // -> AND/MUL with 0 + // -> OR with -1 + // it doesn't matter that the other operand is overdefined. if (I.getOpcode() == Instruction::And || I.getOpcode() == Instruction::Mul || I.getOpcode() == Instruction::Or) { LatticeVal *NonOverdefVal = nullptr; |
