Add -m16 option for using x86-*-*-code16 triple
llvm-svn: 199754
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index ad938b8..17e6bfd 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -1900,13 +1900,22 @@
Target.getOS() == llvm::Triple::Minix)
return Target;
- // Handle pseudo-target flags '-m32' and '-m64'.
- if (Arg *A = Args.getLastArg(options::OPT_m32, options::OPT_m64)) {
+ // Handle pseudo-target flags '-m64', '-m32' and '-m16'.
+ if (Arg *A = Args.getLastArg(options::OPT_m64, options::OPT_m32,
+ options::OPT_m16)) {
llvm::Triple::ArchType AT;
- if (A->getOption().matches(options::OPT_m32))
- AT = Target.get32BitArchVariant().getArch();
- else
+ if (A->getOption().matches(options::OPT_m64))
AT = Target.get64BitArchVariant().getArch();
+ else if (A->getOption().matches(options::OPT_m32))
+ AT = Target.get32BitArchVariant().getArch();
+ else if (A->getOption().matches(options::OPT_m16)) {
+ AT = Target.get32BitArchVariant().getArch();
+ if (AT == llvm::Triple::x86)
+ Target.setEnvironment(llvm::Triple::CODE16);
+ else
+ AT = llvm::Triple::UnknownArch;
+ }
+
if (AT != llvm::Triple::UnknownArch)
Target.setArch(AT);
}