Index: source/Core/ArchSpec.cpp
===================================================================
--- source/Core/ArchSpec.cpp
+++ source/Core/ArchSpec.cpp
@@ -1034,6 +1034,9 @@
             m_triple.setOS(llvm::Triple::OSType::Solaris);
             break;
           }
+        } else if(arch_type == eArchTypeCOFF && os == llvm::Triple::Win32) {
+          m_triple.setVendor(llvm::Triple::PC);
+          m_triple.setOS (llvm::Triple::Win32);
         } else {
           m_triple.setVendor(llvm::Triple::UnknownVendor);
           m_triple.setOS(llvm::Triple::UnknownOS);