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Keith Randall 2c6d106541 [release-branch.go1.22] cmd/compile: don't assume args are always zero-extended
On amd64, we always zero-extend when loading arguments from the stack.
On arm64, we extend based on the type. This causes problems with
zeroUpper*Bits, which reports the top bits are zero when they aren't.

Fix it to use the type to decide if the top bits are really zero.

For tests, only f32 currently fails on arm64. Added other tests
just for future-proofing.

Fixes #66076

Change-Id: I2f13fb47198e139ef13c9a34eb1edc932eea3ee3
Reviewed-on: https://go-review.googlesource.com/c/go/+/571135
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
(cherry picked from commit 6bf8b76b95)
Reviewed-on: https://go-review.googlesource.com/c/go/+/573395
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-03-27 18:49:49 +00:00
.github github: switch seen/expected order in issue forms 2024-01-04 23:31:17 +00:00
api [release-branch.go1.22] Revert "archive/tar: add FileInfoNames interface" 2024-01-24 21:35:52 +00:00
doc [release-branch.go1.22] spec: fix typo in year (it's 2024 now) 2024-02-07 20:45:41 +00:00
lib/time lib/time: update to 2023d/2023d 2023-12-26 17:42:24 +00:00
misc misc/wasm: support new wasmtime CLI 2023-11-19 21:11:54 +00:00
src [release-branch.go1.22] cmd/compile: don't assume args are always zero-extended 2024-03-27 18:49:49 +00:00
test [release-branch.go1.22] cmd/compile: don't assume args are always zero-extended 2024-03-27 18:49:49 +00:00
.gitattributes
.gitignore internal/platform,cmd/dist: export the list of supported platforms 2023-06-22 19:44:52 +00:00
CONTRIBUTING.md doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
LICENSE
PATENTS
README.md README: update from CC-BY-3.0 to CC-BY-4.0 2022-11-02 20:14:56 +00:00
SECURITY.md SECURITY.md: update the Reporting a Vulnerability link 2023-09-22 21:17:24 +00:00
VERSION [release-branch.go1.22] go1.22.1 2024-03-05 17:42:39 +00:00
codereview.cfg [release-branch.go1.22] update codereview.cfg for release-branch.go1.22 2023-12-15 18:08:51 +00:00
go.env cmd/go: additional doc-inspired tests and bug fixes 2023-06-06 19:18:46 +00:00

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

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