[PowerPC] Add support for -mlongcall

Add support for GCC's PowerPC -mlongcall option; the backend supports the
corresponding target feature as of r280040.

Fixes PR19098.

llvm-svn: 280041

diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 0a2962b..98a23b2 100644 (file)
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -1598,6 +1598,10 @@ def mfloat128: Flag<["-"], "mfloat128">,
     Group<m_ppc_Features_Group>;
 def mno_float128 : Flag<["-"], "mno-float128">,
     Group<m_ppc_Features_Group>;
+def mlongcall: Flag<["-"], "mlongcall">,
+    Group<m_ppc_Features_Group>;
+def mno_longcall : Flag<["-"], "mno-longcall">,
+    Group<m_ppc_Features_Group>;
 
 def faltivec : Flag<["-"], "faltivec">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Enable AltiVec vector initializer syntax">;

diff --git a/clang/test/Driver/ppc-features.cpp b/clang/test/Driver/ppc-features.cpp
index 34c1ce5..3b2b02c 100644 (file)
--- a/clang/test/Driver/ppc-features.cpp
+++ b/clang/test/Driver/ppc-features.cpp
@@ -163,6 +163,12 @@
 // RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-crbits -mcrbits -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-CRBITS %s
 // CHECK-CRBITS: "-target-feature" "+crbits"
 
+// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-longcall -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOLONGCALL %s
+// CHECK-NOLONGCALL: "-target-feature" "-longcall"
+
+// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-longcall -mlongcall -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-LONGCALL %s
+// CHECK-LONGCALL: "-target-feature" "+longcall"
+
 // RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-invariant-function-descriptors -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOINVFUNCDESC %s
 // CHECK-NOINVFUNCDESC: "-target-feature" "-invariant-function-descriptors"