Fix pr13749. There is still a lot of code using getArchName that should be

using getArch, but I will try to fix them one at time to add tests.

llvm-svn: 164460

clang/lib/Driver/ToolChains.cpp

@@ -1416,7 +1416,7 @@ Tool &Generic_GCC::SelectTool(const Compilation &C,
 bool Generic_GCC::IsUnwindTablesDefault() const {
   // FIXME: Gross; we should probably have some separate target
   // definition, possibly even reusing the one in clang.
-  return getArchName() == "x86_64";
+  return getArch() == llvm::Triple::x86_64;
 }
 
 const char *Generic_GCC::GetDefaultRelocationModel() const {

clang/test/Driver/clang-translation.c

@@ -91,3 +91,10 @@
 // PPCE5500: "-cc1"
 // PPCE5500: "-target-cpu" "e5500"
 
+// RUN: %clang -target amd64-unknown-openbsd5.2 -### -S %s 2>&1 | \
+// RUN: FileCheck -check-prefix=AMD64 %s
+// AMD64: clang
+// AMD64: "-cc1"
+// AMD64: "-triple"
+// AMD64: "amd64-unknown-openbsd5.2"
+// AMD64: "-munwind-tables"