[PATCH] D62264: [CommandLine] WIP: Add new debug_opt that reduces down to size of DataType in Release builds.

[Don Hinton via Phabricator via llvm-commits]

hintonda created this revision.
hintonda added a reviewer: beanz.
Herald added a subscriber: hiraditya.
Herald added a reviewer: jfb.
Herald added a project: LLVM.

Added a new Option template, `cl::debug_opt`, to the
CommandLine parser that aliases to `cl::opt` in debug builds, but
decays to a simple class containing only the initialized DataType in
Release builds.

`debug_opt`s are also removed from the parser in release builds, so
they don't take up any additional memory, and are designed to be a
drop-in replacement for `cl::opt`.

`cl::OptionCategory` and `cl::SubCommand` also have debug versions
which disappear in release builds.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D62264

Files:
  llvm/include/llvm/Support/CommandLine.h
  llvm/lib/Support/Signals.cpp
  llvm/unittests/Support/CommandLineTest.cpp

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