Make sure we claim arguments that are going to be passed to a gcc tool,

even if they're not going to be used to avoid unused option warnings.

llvm-svn: 257040

clang/lib/Driver/Tools.cpp

@@ -6095,6 +6095,12 @@ void gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
 
   for (const auto &A : Args) {
     if (forwardToGCC(A->getOption())) {
+      // It is unfortunate that we have to claim here, as this means
+      // we will basically never report anything interesting for
+      // platforms using a generic gcc, even if we are just using gcc
+      // to get to the assembler.
+      A->claim();
+
       // Don't forward any -g arguments to assembly steps.
       if (isa<AssembleJobAction>(JA) &&
           A->getOption().matches(options::OPT_g_Group))
@@ -6105,11 +6111,6 @@ void gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
           A->getOption().matches(options::OPT_W_Group))
         continue;
 
-      // It is unfortunate that we have to claim here, as this means
-      // we will basically never report anything interesting for
-      // platforms using a generic gcc, even if we are just using gcc
-      // to get to the assembler.
-      A->claim();
       A->render(Args, CmdArgs);
     }
   }

clang/test/Driver/fortran.f95

@@ -13,3 +13,9 @@
 // CHECK-ASM: "-S"
 // CHECK-ASM: "-x" "f95"
 // CHECK-ASM-NOT: cc1
+
+// RUN: %clang -Wall -target x86_64-unknown-linux-gnu -integrated-as %s -o %t -### 2>&1 | FileCheck --check-prefix=CHECK-WARN %s
+// CHECK-WARN: gcc
+// CHECK-WARN-NOT: "-Wall"
+// CHECK-WARN: ld
+// CHECK-WARN-NOT: "-Wall"