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Keith Randall 9b28db7770 [release-branch.go1.24] 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 #75594

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>
(cherry picked from commit f15cd63ec4)
Reviewed-on: https://go-review.googlesource.com/c/go/+/706575
2025-10-01 11:40:42 -07:00
.github .github: update language change proposal template 2024-08-08 19:02:29 +00:00
api debug/elf: adjust version API per issue discussion 2024-12-17 13:28:29 -08:00
doc [release-branch.go1.24] cmd/go: disable support for multiple vcs in one module 2025-07-08 09:29:29 -07:00
lib [release-branch.go1.24] lib/fips140: re-seal v1.0.0 2025-09-25 13:37:09 -07:00
misc misc/wasm: move wasm runtime files to lib/wasm 2024-08-30 19:15:21 +00:00
src [release-branch.go1.24] cmd/compile: don't rely on loop info when there are irreducible loops 2025-10-01 11:40:42 -07:00
test [release-branch.go1.24] cmd/compile: don't rely on loop info when there are irreducible loops 2025-10-01 11:40:42 -07:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore runtime,internal: move runtime/internal/sys to internal/runtime/sys 2024-07-23 19:05:35 +00:00
codereview.cfg [release-branch.go1.24] update codereview.cfg for release-branch.go1.24 2024-12-06 21:58:36 +00:00
CONTRIBUTING.md doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
go.env cmd/go: additional doc-inspired tests and bug fixes 2023-06-06 19:18:46 +00:00
LICENSE LICENSE: update per Google Legal 2024-08-09 14:54:31 +00:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README.md README: fix CC BY license name 2024-07-22 17:45:27 +00:00
SECURITY.md SECURITY.md: update the Reporting a Vulnerability link 2023-09-22 21:17:24 +00:00
VERSION [release-branch.go1.24] go1.24.7 2025-09-03 10:46:07 -07:00

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