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* Add, and infer, a nofree function attributeBrian Homerding2019-07-081-2/+5
| | | | | | | | | | | | This patch adds a function attribute, nofree, to indicate that a function does not, directly or indirectly, call a memory-deallocation function (e.g., free, C++'s operator delete). Reviewers: jdoerfert Differential Revision: https://reviews.llvm.org/D49165 llvm-svn: 365336
* [OperandBundles] Treat "deopt" operand bundles speciallySanjoy Das2015-11-261-0/+9
| | | | | | | | | Teach LLVM optimize to more precisely in the presence of "deopt" operand bundles. "deopt" operand bundles imply that the call they're attached to is at least `readonly` (i.e. they don't imply clobber semantics), and they don't capture their bundle operands. llvm-svn: 254118
* [FunctionAttrs] Add handling for operand bundlesSanjoy Das2015-11-071-0/+24
Summary: Teach the FunctionAttrs to do the right thing for IR with operand bundles. Reviewers: reames, chandlerc Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D14408 llvm-svn: 252387
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