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Diffstat (limited to 'lib/Transforms/Scalar/ObjCARC.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/ObjCARC.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/ObjCARC.cpp b/lib/Transforms/Scalar/ObjCARC.cpp index 9654b1e..652d8e0 100644 --- a/lib/Transforms/Scalar/ObjCARC.cpp +++ b/lib/Transforms/Scalar/ObjCARC.cpp @@ -344,6 +344,10 @@ static InstructionClass GetInstructionClass(const Value *V) { break; default: // For anything else, check all the operands. + // Note that this includes both operands of a Store: while the first + // operand isn't actually being dereferenced, it is being stored to + // memory where we can no longer track who might read it and dereference + // it, so we have to consider it potentially used. for (User::const_op_iterator OI = I->op_begin(), OE = I->op_end(); OI != OE; ++OI) if (IsPotentialUse(*OI)) |