Silence warning for "clang -O2 -O0 -c foo.c -o foo.o.

Fixes PR8607.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119498 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 31def8f9e02cdeff714940a122e078606fefa2b1..ca45468f107d5e722db661f6647538063e9930c0 100644 (file)
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -1147,6 +1147,9 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
       A->render(Args, CmdArgs);
   }
 
+  // Silence warning for "clang -O2 -O0 -c foo.c -o foo.o"
+  Args.ClaimAllArgs(options::OPT_O_Group);
+
   Args.AddAllArgs(CmdArgs, options::OPT_W_Group);
   Args.AddLastArg(CmdArgs, options::OPT_pedantic);
   Args.AddLastArg(CmdArgs, options::OPT_pedantic_errors);