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| author | Dan Gohman <gohman@apple.com> | 2011-08-22 17:29:37 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2011-08-22 17:29:37 +0000 |
| commit | d446460f42a75b3e5f6234e7ba3bb1ccf7894c9f (patch) | |
| tree | 8c8ead32642075f6131038df972ebfeaea116dce /lib/Transforms | |
| parent | 1b31ea8f935d4b643abf100c4943180c9ed8ba1a (diff) | |
| download | external_llvm-d446460f42a75b3e5f6234e7ba3bb1ccf7894c9f.zip external_llvm-d446460f42a75b3e5f6234e7ba3bb1ccf7894c9f.tar.gz external_llvm-d446460f42a75b3e5f6234e7ba3bb1ccf7894c9f.tar.bz2 | |
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138243 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
| -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)) |