From 2b91d96941bb75d5e05d3cdc04bef1a92dfcb6ad Mon Sep 17 00:00:00 2001
From: David Chase <drchase@google.com>
Date: Wed, 3 Dec 2025 17:11:00 -0500
Subject: [PATCH] [dev.simd] internal/buildcfg: turn GOEXPERIMENT=simd back on

Turn the experiment back on by default on the dev.simd branch, for
the ease of experimenting and development.

Change-Id: I89d6d9b616e620d2be21bb807aaf8b6de2788a97
Reviewed-on: https://go-review.googlesource.com/c/go/+/726660
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
---
 src/internal/buildcfg/exp.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/internal/buildcfg/exp.go b/src/internal/buildcfg/exp.go
index df41f79338..2b6efe30a6 100644
--- a/src/internal/buildcfg/exp.go
+++ b/src/internal/buildcfg/exp.go
@@ -84,6 +84,7 @@ func ParseGOEXPERIMENT(goos, goarch, goexp string) (*ExperimentFlags, error) {
 		RegabiWrappers:        regabiSupported,
 		RegabiArgs:            regabiSupported,
 		Dwarf5:                dwarf5Supported,
+		SIMD:                  goarch == "amd64", // TODO: remove this (default to false) when dev.simd is merged
 		RandomizedHeapBase64:  true,
 		SizeSpecializedMalloc: true,
 		GreenTeaGC:            true,