Change the set of actions built for external gcc tools.

A gcc tool has an "integrated" assembler (usually gas) that it
will call to produce an object. Let it use that assembler so
that we don't have to deal with assembly syntax incompatibilities.

llvm-svn: 256919

clang/lib/Driver/Tools.cpp

@@ -6179,6 +6179,11 @@ void gcc::Compiler::RenderExtraToolArgs(const JobAction &JA,
   case types::TY_LTO_BC:
     CmdArgs.push_back("-c");
     break;
+  // We assume we've got an "integrated" assembler in that gcc will produce an
+  // object file itself.
+  case types::TY_Object:
+    CmdArgs.push_back("-c");
+    break;
   case types::TY_PP_Asm:
     CmdArgs.push_back("-S");
     break;

clang/lib/Driver/Tools.h

@@ -149,6 +149,10 @@ public:
   Common(const char *Name, const char *ShortName, const ToolChain &TC)
       : GnuTool(Name, ShortName, TC) {}
 
+  // A gcc tool has an "integrated" assembler that it will call to produce an
+  // object. Let it use that assembler so that we don't have to deal with
+  // assembly syntax incompatibilities.
+  bool hasIntegratedAssembler() const override { return true; }
   void ConstructJob(Compilation &C, const JobAction &JA,
                     const InputInfo &Output, const InputInfoList &Inputs,
                     const llvm::opt::ArgList &TCArgs,

clang/test/Driver/fortran.f95

@@ -1,9 +1,15 @@
 // Check that the clang driver can invoke gcc to compile Fortran.
 
 // RUN: %clang -target x86_64-unknown-linux-gnu -integrated-as -c %s -### 2>&1 \
-// RUN:   | FileCheck %s
-// CHECK: gcc
-// CHECK: "-S"
-// CHECK: "-x" "f95"
-// CHECK: clang
-// CHECK: "-cc1as"
+// RUN:   | FileCheck --check-prefix=CHECK-OBJECT %s
+// CHECK-OBJECT: gcc
+// CHECK-OBJECT: "-c"
+// CHECK-OBJECT: "-x" "f95"
+// CHECK-OBJECT-NOT: cc1as
+
+// RUN: %clang -target x86_64-unknown-linux-gnu -integrated-as -S %s -### 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-ASM %s
+// CHECK-ASM: gcc
+// CHECK-ASM: "-S"
+// CHECK-ASM: "-x" "f95"
+// CHECK-ASM-NOT: cc1