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authorDiego Novillo <dnovillo@google.com>2013-05-24 12:26:52 +0000
committerDiego Novillo <dnovillo@google.com>2013-05-24 12:26:52 +0000
commitc63995394de60996ebfe52a47cf2e3a0716d7e3c (patch)
treea74f82a4691d823a2fc5ab2d87c5798f68174cf1 /clang/lib/CodeGen/CodeGenModule.cpp
parent646ec67e252f7daa5fe1f5d7719f247c89293b0c (diff)
downloadbcm5719-llvm-c63995394de60996ebfe52a47cf2e3a0716d7e3c.tar.gz
bcm5719-llvm-c63995394de60996ebfe52a47cf2e3a0716d7e3c.zip
Add a new function attribute 'cold' to functions.
Other than recognizing the attribute, the patch does little else. It changes the branch probability analyzer so that edges into blocks postdominated by a cold function are given low weight. Added analysis and code generation tests. Added documentation for the new attribute. llvm-svn: 182638
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