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| author | John McCall <rjmccall@apple.com> | 2011-09-10 01:16:55 +0000 |
|---|---|---|
| committer | John McCall <rjmccall@apple.com> | 2011-09-10 01:16:55 +0000 |
| commit | dc05b11c67331016473fbc7909827b1b89c9616b (patch) | |
| tree | 65c8e307e0ccdcb67ebba0c530f476d59f87c09f /lib/CodeGen/CGExprConstant.cpp | |
| parent | b3321093f6ead084427eb4a6621832fc4ee2f5de (diff) | |
When converting a block pointer to an Objective-C pointer type, extend
the lifetime of the block by copying it to the heap, or else we'll get
a dangling reference because the code working with the non-block-typed
object will not know it needs to copy.
There is some danger here, e.g. with assigning a block literal to an
unsafe variable, but, well, it's an unsafe variable.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139451 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGExprConstant.cpp')
| -rw-r--r-- | lib/CodeGen/CGExprConstant.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/CGExprConstant.cpp b/lib/CodeGen/CGExprConstant.cpp index b51ff38656..7ab77709e0 100644 --- a/lib/CodeGen/CGExprConstant.cpp +++ b/lib/CodeGen/CGExprConstant.cpp @@ -589,6 +589,7 @@ public: case CK_ObjCProduceObject: case CK_ObjCConsumeObject: case CK_ObjCReclaimReturnedObject: + case CK_ObjCExtendBlockObject: return 0; // These might need to be supported for constexpr. |