+Triple::ArchType Triple::getArchTypeForDarwinArchName(StringRef Str) {
+ // See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for
+ // archs which Darwin doesn't use.
+
+ // The matching this routine does is fairly pointless, since it is neither the
+ // complete architecture list, nor a reasonable subset. The problem is that
+ // historically the driver driver accepts this and also ties its -march=
+ // handling to the architecture name, so we need to be careful before removing
+ // support for it.
+
+ // This code must be kept in sync with Clang's Darwin specific argument
+ // translation.
+
+ if (Str == "ppc" || Str == "ppc601" || Str == "ppc603" || Str == "ppc604" ||
+ Str == "ppc604e" || Str == "ppc750" || Str == "ppc7400" ||
+ Str == "ppc7450" || Str == "ppc970")
+ return Triple::ppc;
+
+ if (Str == "ppc64")
+ return Triple::ppc64;
+
+ if (Str == "i386" || Str == "i486" || Str == "i486SX" || Str == "pentium" ||
+ Str == "i586" || Str == "pentpro" || Str == "i686" || Str == "pentIIm3" ||
+ Str == "pentIIm5" || Str == "pentium4")
+ return Triple::x86;
+
+ if (Str == "x86_64")
+ return Triple::x86_64;
+
+ // This is derived from the driver driver.
+ if (Str == "arm" || Str == "armv4t" || Str == "armv5" || Str == "xscale" ||
+ Str == "armv6" || Str == "armv7")
+ return Triple::arm;
+
+ return Triple::UnknownArch;
+}
+
+// Returns architecture name that is understood by the target assembler.
+const char *Triple::getArchNameForAssembler() {
+ if (getOS() != Triple::Darwin && getVendor() != Triple::Apple)
+ return NULL;
+
+ StringRef Str = getArchName();
+ if (Str == "i386")
+ return "i386";
+ if (Str == "x86_64")
+ return "x86_64";
+ if (Str == "powerpc")
+ return "ppc";
+ if (Str == "powerpc64")
+ return "ppc64";
+ if (Str == "mblaze" || Str == "microblaze")
+ return "mblaze";
+ if (Str == "arm")
+ return "arm";
+ if (Str == "armv4t" || Str == "thumbv4t")
+ return "armv4t";
+ if (Str == "armv5" || Str == "armv5e" || Str == "thumbv5" || Str == "thumbv5e")
+ return "armv5";
+ if (Str == "armv6" || Str == "thumbv6")
+ return "armv6";
+ if (Str == "armv7" || Str == "thumbv7")
+ return "armv7";
+ return NULL;
+}
+