tree 6168abf1a59d940bcbbc9c711f288e7b889afab7
parent 32f498a675df990901e6659d610dc740f9423228
author Jordan Rose <jordan_rose@apple.com> 1339805360 +0000
committer Jordan Rose <jordan_rose@apple.com> 1339805360 +0000

[analyzer] Buffers passed to CGBitmapContextCreate can escape.

Specifically, although the bitmap context does not take ownership of the
buffer (unlike CGBitmapContextCreateWithData), the data buffer can be extracted
out of the created CGContextRef. Thus the buffer is not leaked even if its
original pointer goes out of scope, as long as
- the context escapes, or
- it is retrieved via CGBitmapContextGetData and freed.

Actually implementing that logic is beyond the current scope of MallocChecker,
so for now CGBitmapContextCreate goes on our system function exception list.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158579 91177308-0d34-0410-b5e6-96231b3b80d8