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archived-llvm/utils/TableGen
Ahmed Bougacha de17164c61 [GlobalISel] Return an Expected<RuleMatcher> for each SDAG pattern. NFC.
Instead of emitting the matcher code directly, return the rule matcher
and the skip reason as an Expected<RuleMatcher>.

This will let us record all matchers and process them before emission.

It's a somewhat unconventional use of Error, but it's nicer than, say,
std::pair, because of the bool conversions.

Differential Revision: https://reviews.llvm.org/D29743

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294706 91177308-0d34-0410-b5e6-96231b3b80d8
2017-02-10 04:00:17 +00:00
..
2016-04-18 09:17:29 +00:00
2017-02-03 14:18:35 +00:00