ChuanqiXu9 wrote: > My current IR test verifies that there's no heap alloc across a few examples. > Were you thinking of a different kind of test? Can you be very specific since > I'm totally new to LLVM?
I mean to add a test for https://github.com/llvm/llvm-project/issues/148380 to show we can cover that in certain cases. Specifically, you can have a test on the IR to show it is devirtualized. > I don't know when I'll next be able to make time to work on this, but if I > do, my next target would be std::suspend_never. I hope this one could be done > without an attribute, though. Do you have other use-cases in mind? e.g., add an attribute to ask the compiler don't generate await.suspend intrinsics then the compiler may have optimized the await_suspend call better by inlining. The cost is the risk if the code resume or destroy the current coroutine during await_suspend somehow. But the programmer should be able to know that. The core idea is to avoid generating await.suspend intrinsics conditionally. I am open to the conditions. https://github.com/llvm/llvm-project/pull/152623 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
