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* Prefer #if defined to #ifdefBen Gamari2017-04-281-1/+1
| | | | Our new CPP linter enforces this.
* cpp: Use #pragma once instead of #ifndef guardsBen Gamari2017-04-231-4/+1
| | | | | | | | | | | | | | This both says what we mean and silences a bunch of spurious CPP linting warnings. This pragma is supported by all CPP implementations which we support. Reviewers: austin, erikd, simonmar, hvr Reviewed By: simonmar Subscribers: rwbarton, thomie Differential Revision: https://phabricator.haskell.org/D3482
* JSON profiler reportsBen Gamari2017-02-231-0/+29
This introduces a JSON output format for cost-centre profiler reports. It's not clear whether this is really something we want to introduce given that we may also move to a more Haskell-driven output pipeline in the future, but I nevertheless found this helpful, so I thought I would put it up. Test Plan: Compile a program with `-prof -fprof-auto`; run with `+RTS -pj` Reviewers: austin, erikd, simonmar Reviewed By: simonmar Subscribers: duncan, maoe, thomie, simonmar Differential Revision: https://phabricator.haskell.org/D3132