Gor Nishanov 0346aed75a [Coroutines] Part 5: Add CGSCC restart trigger ... Summary: CoroSplit pass processes the coroutine twice. First, it lets it go through complete IPO optimization pipeline as a single function. It forces restart of the pipeline by inserting an indirect call to an empty function "coro.devirt.trigger" which is devirtualized by CoroElide pass that triggers a restart of the pipeline by CGPassManager. (In later patches, when CoroSplit pass sees the same coroutine the second time, it splits it up, adds coroutine subfunctions to the SCC to be processed by IPO pipeline.) Documentation and overview is here: http://llvm.org/docs/Coroutines.html. Upstreaming sequence (rough plan) 1.Add documentation. (https://reviews.llvm.org/D22603) 2.Add coroutine intrinsics. (https://reviews.llvm.org/D22659) 3.Add empty coroutine passes. (https://reviews.llvm.org/D22847) 4.Add coroutine devirtualization + tests. ab) Lower coro.resume and coro.destroy (https://reviews.llvm.org/D22998) c) Do devirtualization (https://reviews.llvm.org/D23229) 5.Add CGSCC restart trigger + tests. <= we are here 6.Add coroutine heap elision + tests. 7.Add the rest of the logic (split into more patches) Reviewers: mehdi_amini, majnemer Subscribers: llvm-commits, mehdi_amini Differential Revision: https://reviews.llvm.org/D23234 llvm-svn: 277936		2016-08-06 20:44:39 +00:00
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coro-early.ll	Part 4c: Coroutine Devirtualization: Devirtualize coro.resume and coro.destroy.	2016-08-06 02:16:35 +00:00
coro-elide.ll	Part 4c: Coroutine Devirtualization: Devirtualize coro.resume and coro.destroy.	2016-08-06 02:16:35 +00:00
restart-trigger.ll	[Coroutines] Part 5: Add CGSCC restart trigger	2016-08-06 20:44:39 +00:00
smoketest.ll	opt: Adding -O0 to opt tool	2016-08-05 16:27:33 +00:00