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mirror of https://github.com/golang/go synced 2025-09-25 12:52:31 +00:00
Keith Randall f15cd63ec4 cmd/compile: don't rely on loop info when there are irreducible loops
Loop information is sketchy when there are irreducible loops.
Sometimes blocks inside 2 loops can be recorded as only being part of
the outer loop. That causes tighten to move values that want to move
into such a block to move out of the loop altogether, breaking the
invariant that operations have to be scheduled after their args.

Fixes #75569

Change-Id: Idd80e6d2268094b8ae6387563081fdc1e211856a
Reviewed-on: https://go-review.googlesource.com/c/go/+/706355
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>
2025-09-24 15:24:36 -07:00
2025-09-15 12:17:42 -07:00
2025-09-23 12:08:27 -07:00
2024-08-09 14:54:31 +00:00
2010-12-06 16:31:59 -05:00
2024-07-22 17:45:27 +00:00

The Go Programming Language

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