Index: clang/lib/Driver/ToolChains/Clang.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Clang.cpp
+++ clang/lib/Driver/ToolChains/Clang.cpp
@@ -3081,9 +3081,7 @@
                              ArgStringList &CmdArgs) {
   const llvm::Triple &EffectiveTriple = TC.getEffectiveTriple();
 
-  if (!EffectiveTriple.isOSLinux())
-    return;
-
+  // Only enable stack clash protection for backends that implement it.
   if (!EffectiveTriple.isX86() && !EffectiveTriple.isSystemZ() &&
       !EffectiveTriple.isPPC64())
     return;
Index: clang/test/Driver/stack-clash-protection.c
===================================================================
--- clang/test/Driver/stack-clash-protection.c
+++ clang/test/Driver/stack-clash-protection.c
@@ -15,7 +15,8 @@
 // SCP-warn: warning: Unable to protect inline asm that clobbers stack pointer against stack clash
 
 // RUN: %clang -target x86_64-pc-unknown-linux -fstack-clash-protection -S -emit-llvm -o- %s | FileCheck %s -check-prefix=SCP-ll-linux64
-// SCP-ll-linux64: attributes {{.*}} "probe-stack"="inline-asm"
+// RUN: %clang -target x86_64-unknown-freebsd13 -fstack-clash-protection -S -emit-llvm -o- %s | FileCheck %s -check-prefix=SCP-inline-asm
+// SCP-inline-asm: attributes {{.*}} "probe-stack"="inline-asm"
 
 // RUN: %clang -target x86_64-pc-windows-msvc -fstack-clash-protection -S -emit-llvm -o- %s 2>&1 | FileCheck %s -check-prefix=SCP-ll-win64
 // SCP-ll-win64-NOT: attributes {{.*}} "probe-stack"="inline-asm"