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-rw-r--r--include/clang/Driver/Options.td2
-rw-r--r--lib/Driver/Driver.cpp5
2 files changed, 6 insertions, 1 deletions
diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index a574f41d8c..040b2b2efc 100644
--- 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 3707acad24..e24f017ceb 100644
--- 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;