commit | 6224db9b4d6acbc04a357ef0505424d74b723233 | [log] [tgz] |
---|---|---|
author | Keith Randall <khr@golang.org> | Wed Feb 01 08:31:03 2023 -0800 |
committer | Keith Randall <khr@google.com> | Wed Feb 01 18:41:07 2023 +0000 |
tree | fa456088252e8e96f1e03ab68d5b2ba42cb40fb7 | |
parent | c846964df5eeab05c8620d34fcd3e56d5b6cbcfa [diff] |
cmd/compile: schedule values with no in-block uses later When scheduling a block, deprioritize values whose results aren't used until subsequent blocks. For #58166, this has the effect of pushing the induction variable increment to the end of the block, past all the other uses of the pre-incremented value. Do this only with optimizations on. Debuggers have a preference for values in source code order, which this CL can degrade. Fixes #58166 Fixes #57976 Change-Id: I40d5885c661b142443c6d4702294c8abe8026c4f Reviewed-on: https://go-review.googlesource.com/c/go/+/463751 Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
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