llvm dev - Jul 2017 - noopt

Hello,
I wonder in what version of llvm the noopt attribute appeared, that is
inserted when O0 is specified? In some early versions I don't get this
behavior.
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The 'optnone' attribute was added to LLVM IR some years ago, but
originally Clang used it only for the "optimize off" pragma.
Adding it to all functions when compiling at –O0 was a relatively recent change,
r304127 (end of May).
--paulr

From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of
Anastasiya Ruzhanskaya via llvm-dev
Sent: Wednesday, July 12, 2017 2:23 AM
To: llvm-dev at lists.llvm.org
Subject: [llvm-dev] noopt

Hello,
I wonder in what version of llvm the noopt attribute appeared, that is inserted
when O0 is specified? In some early versions I don't get this behavior.
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