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Jake Bailey b915e14490 cmd/compile: consolidate logic for rewriting fixed loads
Many CLs have worked with this bit of code, extending the cases more and
more for various fixed addresses and constants. But, I find that it's
getting duplicitive, and I don't find the current setup very clear that
something like isFixed32 _only_ works for a specific element within the
type data.

This CL rewrites these rules (pun unintended) into a single set of
rewrite rules with shared logic, which stops hardcoding offsets and type
compatibility checks.

This should open the door to optimizing further type:... field loads, of
which most can be done entirely statically but are not yet today outside
Hash and Elem.

Passes toolstash -cmp.

Change-Id: I754138ce1785c6036eada9ed53f0ce2ad2a58b63
Reviewed-on: https://go-review.googlesource.com/c/go/+/701297
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Mark Freeman <markfreeman@google.com>
Reviewed-by: Florian Lehner <lehner.florian86@gmail.com>
2025-09-08 13:34:03 -07:00
.github .github: update language change proposal template 2024-08-08 19:02:29 +00:00
api log/slog: add multiple handlers support for logger 2025-09-04 11:07:44 -07:00
doc log/slog: add multiple handlers support for logger 2025-09-04 11:07:44 -07:00
lib cmd/dist: test encoding/json/... with GOEXPERIMENT=jsonv2 2025-06-23 18:21:07 -07:00
misc misc/linkcheck: remove unused tool 2025-03-20 04:38:55 -07:00
src cmd/compile: consolidate logic for rewriting fixed loads 2025-09-08 13:34:03 -07:00
test cmd/compile: optimize loads from readonly globals into constants on loong64 2025-09-05 08:42:28 -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 codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +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

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