From: Cherry Mui <cherryyz@google.com>
Date: Thu, 22 May 2025 19:08:05 +0000 (-0400)
Subject: [dev.simd] internal/goexperiment: add SIMD goexperiment
X-Git-Tag: go1.26rc1~147^2~263
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=4d2c71ebf9;p=gostls13.git

[dev.simd] internal/goexperiment: add SIMD goexperiment

We'll use it to guard the simd package, and the compiler's
handling of SIMD types and intrinsics.

Change-Id: I0356368eea0a98a5016baaaf7acb7da8b6305429
Reviewed-on: https://go-review.googlesource.com/c/go/+/675536
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
---

diff --git a/src/internal/goexperiment/exp_simd_off.go b/src/internal/goexperiment/exp_simd_off.go
new file mode 100644
index 0000000000..ebc40b308e
--- /dev/null
+++ b/src/internal/goexperiment/exp_simd_off.go
@@ -0,0 +1,8 @@
+// Code generated by mkconsts.go. DO NOT EDIT.
+
+//go:build !goexperiment.simd
+
+package goexperiment
+
+const SIMD = false
+const SIMDInt = 0
diff --git a/src/internal/goexperiment/exp_simd_on.go b/src/internal/goexperiment/exp_simd_on.go
new file mode 100644
index 0000000000..137d1dd1ba
--- /dev/null
+++ b/src/internal/goexperiment/exp_simd_on.go
@@ -0,0 +1,8 @@
+// Code generated by mkconsts.go. DO NOT EDIT.
+
+//go:build goexperiment.simd
+
+package goexperiment
+
+const SIMD = true
+const SIMDInt = 1
diff --git a/src/internal/goexperiment/flags.go b/src/internal/goexperiment/flags.go
index ceff24193d..b693ed883a 100644
--- a/src/internal/goexperiment/flags.go
+++ b/src/internal/goexperiment/flags.go
@@ -129,4 +129,8 @@ type Flags struct {
 
 	// GreenTeaGC enables the Green Tea GC implementation.
 	GreenTeaGC bool
+
+	// SIMD enables the simd package and the compiler's handling
+	// of SIMD intrinsics.
+	SIMD bool
 }