simplify @allocated macro #33717
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simplify @allocated macro #33717
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| while false; end # compiler heuristic: compile this block (alter this if the heuristic changes) | ||
| local b0 = Ref{Int64}(0) | ||
| local b1 = Ref{Int64}(0) | ||
| gc_bytes(b0) |
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If this code is compiled, shouldn't it be ok for gc_bytes() to return a value?
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There's some code paths that'll compile but not infer this code. But anyways, it seemed nicer to be at least robust against ever including @allocated in the overhead.
Changes testset to avoid compiler heuristics (copyast) that disables inference. And changes the allocated macro to rely less on inference to elid allocations for the machinary itself.
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Just to make sure this doesn't affect nanosoldier: @nanosoldier |
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Your benchmark job has completed - no performance regressions were detected. A full report can be found here. cc @ararslan |
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There were a long list of gotchas in the
@allocatedmacro to deal with problems that it couldn't actually solve. The simplified macro doesn't have those issues—and even solves some of the issues it was trying to address. This needed an adjustment to@testsetto avoid it triggering the compiler heuristic that disables inference.