[PATCH] D118428: [clang-cl] Support the /JMC flag

[Yuanfang Chen via Phabricator via cfe-commits]

ychen added a comment.

In D118428#3292918 <https://reviews.llvm.org/D118428#3292918>, @hans wrote:

> It seems Phabricator ate my comment, but I meant to say:
>
> My understanding is still that IR passes generally live in Transforms/ and that CodeGen/ deals with lower levels such as MachineInstrs, SelectionDAG, etc. with CodegenPrepare as the big exception.
>
> Thinking about it another way, what about this pass makes it a "codegen IR" pass as opposed to all the other passes that add instrumentation to the IR and live in Transforms/Instrumentation/ ?

The passes in `lib/Transforms/Instrumentation` runs with `EmitAssemblyHelper::RunOptimizationPipeline`. JMC pass runs with `EmitAssemblyHelper::RunCodegenPipeline`.


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https://reviews.llvm.org/D118428