Enable SafeStack on all Linux platforms.

llvm-svn: 248518
diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index 668fc02..26e7ca6 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -3800,6 +3800,7 @@
   Res |= SanitizerKind::Address;
   Res |= SanitizerKind::KernelAddress;
   Res |= SanitizerKind::Vptr;
+  Res |= SanitizerKind::SafeStack;
   if (IsX86_64 || IsMIPS64 || IsAArch64)
     Res |= SanitizerKind::DataFlow;
   if (IsX86_64 || IsMIPS64)
@@ -3810,7 +3811,6 @@
     Res |= SanitizerKind::Memory;
   if (IsX86 || IsX86_64) {
     Res |= SanitizerKind::Function;
-    Res |= SanitizerKind::SafeStack;
   }
   return Res;
 }