Add four new command line options for MIPS CPU selection:

-mips32, -mips32r2, -mips64, -mips64r2.

The patch reviewed by Eric Christopher.

llvm-svn: 164410

1 files changed, 21 insertions, 2 deletions

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 960ffde228f..0866c016576 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -778,6 +778,20 @@ void Clang::AddARMTargetArgs(const ArgList &Args,
     CmdArgs.push_back("-no-implicit-float");
 }
 
+// Translate MIPS CPU name alias option to CPU name.
+static StringRef getMipsCPUFromAlias(const Arg &A) {
+  if (A.getOption().matches(options::OPT_mips32))
+    return "mips32";
+  if (A.getOption().matches(options::OPT_mips32r2))
+    return "mips32r2";
+  if (A.getOption().matches(options::OPT_mips64))
+    return "mips64";
+  if (A.getOption().matches(options::OPT_mips64r2))
+    return "mips64r2";
+  llvm_unreachable("Unexpected option");
+  return "";
+}
+
 // Get CPU and ABI names. They are not independent
 // so we have to calculate them together.
 static void getMipsCPUAndABI(const ArgList &Args,
@@ -788,8 +802,13 @@ static void getMipsCPUAndABI(const ArgList &Args,
   const char *DefMips64CPU = "mips64";
 
   if (Arg *A = Args.getLastArg(options::OPT_march_EQ,
-                               options::OPT_mcpu_EQ))
-    CPUName = A->getValue(Args);
+                               options::OPT_mcpu_EQ,
+                               options::OPT_mips_CPUs_Group)) {
+    if (A->getOption().matches(options::OPT_mips_CPUs_Group))
+      CPUName = getMipsCPUFromAlias(*A);
+    else
+      CPUName = A->getValue(Args);
+  }
 
   if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ))
     ABIName = A->getValue(Args);