Enable LLVM asan support for NetBSD/i386

Summary:
Verified to work and useful to run check-asan, as this target tests 32-bit and 64-bit execution.

Sponsored by <The NetBSD Foundation>

Reviewers: joerg, filcab, dim, vitalybuka

Reviewed By: vitalybuka

Subscribers: #sanitizers, cfe-commits

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D36378

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@310245 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Driver/ToolChains/NetBSD.cpp

@@ -417,9 +417,10 @@ void NetBSD::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
 }
 
 SanitizerMask NetBSD::getSupportedSanitizers() const {
+  const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
   const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64;
   SanitizerMask Res = ToolChain::getSupportedSanitizers();
-  if (IsX86_64) {
+  if (IsX86 || IsX86_64) {
     Res |= SanitizerKind::Address;
   }
   return Res;