Update build scripts to check for avx instead of avx2

build.zig

@@ -224,7 +224,7 @@ pub fn build_(b: *Build) !void {
 
     var default_build_options: BunBuildOptions = brk: {
         const is_baseline = arch.isX86() and (target.cpu_model == .baseline or
-            !std.Target.x86.featureSetHas(target.getCpuFeatures(), .avx2));
+            !std.Target.x86.featureSetHas(target.getCpuFeatures(), .avx));
 
         var git_sha: [:0]const u8 = "";
         if (b.env_map.get("GITHUB_SHA") orelse b.env_map.get("GIT_SHA")) |sha| {

packages/bun-release/src/platform.ts

@@ -6,12 +6,12 @@ export const os = process.platform;
 
 export const arch = os === "darwin" && process.arch === "x64" && isRosetta2() ? "arm64" : process.arch;
 
-export const avx2 = (arch === "x64" && os === "linux" && isLinuxAVX2()) || (os === "darwin" && isDarwinAVX2());
+export const avx = arch === "x64" && ((os === "linux" && isLinuxAVX()) || (os === "darwin" && isDarwinAVX()));
 
 export type Platform = {
   os: string;
   arch: string;
-  avx2?: boolean;
+  avx?: boolean;
   bin: string;
   exe: string;
 };
@@ -26,7 +26,7 @@ export const platforms: Platform[] = [
   {
     os: "darwin",
     arch: "x64",
-    avx2: true,
+    avx: true,
     bin: "bun-darwin-x64",
     exe: "bin/bun",
   },
@@ -45,7 +45,7 @@ export const platforms: Platform[] = [
   {
     os: "linux",
     arch: "x64",
-    avx2: true,
+    avx: true,
     bin: "bun-linux-x64",
     exe: "bin/bun",
   },
@@ -58,24 +58,24 @@ export const platforms: Platform[] = [
 ];
 
 export const supportedPlatforms: Platform[] = platforms
-  .filter(platform => platform.os === os && platform.arch === arch && (!platform.avx2 || avx2))
-  .sort((a, b) => (a.avx2 === b.avx2 ? 0 : a.avx2 ? -1 : 1));
+  .filter(platform => platform.os === os && platform.arch === arch && (!platform.avx || avx))
+  .sort((a, b) => (a.avx === b.avx ? 0 : a.avx ? -1 : 1));
 
-function isLinuxAVX2(): boolean {
+function isLinuxAVX(): boolean {
   try {
-    return read("/proc/cpuinfo").includes("avx2");
+    return read("/proc/cpuinfo").includes("avx");
   } catch (error) {
-    debug("isLinuxAVX2 failed", error);
+    debug("isLinuxAVX failed", error);
     return false;
   }
 }
 
-function isDarwinAVX2(): boolean {
+function isDarwinAVX(): boolean {
   try {
     const { exitCode, stdout } = spawn("sysctl", ["-n", "machdep.cpu"]);
-    return exitCode === 0 && stdout.includes("AVX2");
+    return exitCode === 0 && stdout.includes("AVX");
   } catch (error) {
-    debug("isDarwinAVX2 failed", error);
+    debug("isDarwinAVX failed", error);
     return false;
   }
 }

src/cli/install.sh

@@ -85,15 +85,15 @@ GITHUB=${GITHUB-"https://github.com"}
 github_repo="$GITHUB/oven-sh/bun"
 
 if [[ $target = darwin-x64 ]]; then
-    # If AVX2 isn't supported, use the -baseline build
-    if [[ $(sysctl -a | grep machdep.cpu | grep AVX2) == '' ]]; then
+    # If AVX isn't supported, use the -baseline build
+    if [[ $(sysctl -a | grep machdep.cpu | grep AVX) == '' ]]; then
         target=darwin-x64-baseline
     fi
 fi
 
 if [[ $target = linux-x64 ]]; then
-    # If AVX2 isn't supported, use the -baseline build
-    if [[ $(cat /proc/cpuinfo | grep avx2) = '' ]]; then
+    # If AVX isn't supported, use the -baseline build
+    if [[ $(cat /proc/cpuinfo | grep avx) = '' ]]; then
         target=linux-x64-baseline
     fi
 fi