Driver: Support -dumpmachine.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114155 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index a574f41d8c55314b67e5eb44597296e38b2f73eb..040b2b2efc4b2d7f3e623a04e243171d0fc2f4fb 100644 (file)
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -214,7 +214,7 @@ def dD : Flag<"-dD">, Group<d_Group>;
 def dM : Flag<"-dM">, Group<d_Group>;
 def dead__strip : Flag<"-dead_strip">;
 def dependency_file : Separate<"-dependency-file">;
-def dumpmachine : Flag<"-dumpmachine">, Flags<[Unsupported]>;
+def dumpmachine : Flag<"-dumpmachine">;
 def dumpspecs : Flag<"-dumpspecs">, Flags<[Unsupported]>;
 def dumpversion : Flag<"-dumpversion">;
 def dylib__file : Separate<"-dylib_file">;

diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index 3707acad2499a002f694bfea6c6dc81d4199d58c..e24f017ceb5032bed737a39de868038d05fd452b 100644 (file)
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -387,6 +387,11 @@ bool Driver::HandleImmediateArgs(const Compilation &C) {
   // The order these options are handled in gcc is all over the place, but we
   // don't expect inconsistencies w.r.t. that to matter in practice.
 
+  if (C.getArgs().hasArg(options::OPT_dumpmachine)) {
+    llvm::outs() << C.getDefaultToolChain().getTripleString() << '\n';
+    return false;
+  }
+
   if (C.getArgs().hasArg(options::OPT_dumpversion)) {
     llvm::outs() << CLANG_VERSION_STRING "\n";
     return false;