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authorJF Bastien <jfb@google.com>2015-12-17 22:09:19 +0000
committerJF Bastien <jfb@google.com>2015-12-17 22:09:19 +0000
commitd1fb58538ff3e9fd1a89dc4a840a48c337414027 (patch)
tree4042008c68475f23fd077fa822b08e27468f6cbc /lldb/packages/Python/lldbsuite/test/python_api/process
parent762a6ac0b5c7565e08b78f3bd6fef7c5c9b49d5d (diff)
downloadbcm5719-llvm-d1fb58538ff3e9fd1a89dc4a840a48c337414027.tar.gz
bcm5719-llvm-d1fb58538ff3e9fd1a89dc4a840a48c337414027.zip
Polish atomic pointers
Summary: I didn't realize that we already allowed atomic load/store of pointers, it was added in 2012 by r162146. This patch updates the documentation and tightens the verifier by using DataLayout to make sure that the stored size is byte-sized and power-of-two. DataLayout is also used for integers, and while I'm here I updated the corresponding code for cmpxchg and rmw. See the following discussion for context and upcoming changes to add floating-point and vector atomics: https://groups.google.com/forum/#!topic/llvm-dev/Nh0P_E3CRoo/discussion Reviewers: reames Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D15512 llvm-svn: 255931
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