The test is only run when GOEXPERIMENT=simd, and currently
there are no trybots for that. This error was found after
merging to dev.simd, where such trybots ARE run.
To run this test:
```
GOEXPERIMENT=simd go test -run=Test/simd.go -v cmd/internal/testdir -target=darwin/amd64
```
or -target=linux/amd64 if that is your OS.
Change-Id: I70e469f080bc62300ff9c18350cc805985e33f9e
Reviewed-on: https://go-review.googlesource.com/c/go/+/758980
Auto-Submit: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Also removes a few leftover TODOs and scraps of commented-out code
from simd development.
Updated etetest.sh to make it behave whether amd64 implies the
experiment, or not.
Fixes#76473.
Change-Id: I6d9792214d7f514cb90c21b101dbf7d07c1d0e55
Reviewed-on: https://go-review.googlesource.com/c/go/+/728220
TryBot-Bypass: David Chase <drchase@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
These new tests check a hypothesis about interactions
between CPU features and common subexpressions. Happily,
they hypothesis was not (yet) correct and the test did not
fail.
These are probably good to have in the corpus in case we
decide to tinker with the rewrite in the future, or if
someone wants to write a fuzzer and needs a little
inspiration.
Change-Id: I8ea6e1655a293c22e39bf53e4d2c5afd3dcb2510
Reviewed-on: https://go-review.googlesource.com/c/go/+/714803
Reviewed-by: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
analysis for
- is this block only reached through feature checks?
- does the function signature imply AVX-something?
- is there an instruction in this block which implies AVX-something?
and keep track of which features those are. Features =
AVX, AVX2, AVX512, etc.
Has a test.
Change-Id: I0b6f2e87d01ec587818db11cf71fac1e4d500650
Reviewed-on: https://go-review.googlesource.com/c/go/+/706337
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
