From a7917eed70c63840b2c59748c52ef9ff11fecf38 Mon Sep 17 00:00:00 2001
From: Michael Matloob <matloob@golang.org>
Date: Mon, 17 Mar 2025 11:45:52 -0400
Subject: [PATCH] internal/buildcfg: enable specializedmalloc experiment

Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64_c2s16-perf_vs_parent,gotip-linux-amd64_c3h88-perf_vs_parent,gotip-linux-arm64_c4ah72-perf_vs_parent,gotip-linux-arm64_c4as16-perf_vs_parent
Change-Id: I6a6a6964c4c596bbf4f072b5a44a34c3ce4f6541
Reviewed-on: https://go-review.googlesource.com/c/go/+/696536
Reviewed-by: Michael Matloob <matloob@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
---
 src/internal/buildcfg/exp.go | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/internal/buildcfg/exp.go b/src/internal/buildcfg/exp.go
index 707776b374..d06913d9a7 100644
--- a/src/internal/buildcfg/exp.go
+++ b/src/internal/buildcfg/exp.go
@@ -79,10 +79,11 @@ func ParseGOEXPERIMENT(goos, goarch, goexp string) (*ExperimentFlags, error) {
 	dwarf5Supported := (goos != "darwin" && goos != "ios" && goos != "aix")
 
 	baseline := goexperiment.Flags{
-		RegabiWrappers:       regabiSupported,
-		RegabiArgs:           regabiSupported,
-		Dwarf5:               dwarf5Supported,
-		RandomizedHeapBase64: true,
+		RegabiWrappers:        regabiSupported,
+		RegabiArgs:            regabiSupported,
+		Dwarf5:                dwarf5Supported,
+		RandomizedHeapBase64:  true,
+		SizeSpecializedMalloc: true,
 	}
 
 	// Start with the statically enabled set of experiments.
-- 
2.52.0