Use ".arch_extension" ARM directive to specify the additional CPU features
This patch is in response to r223147 where the avaiable features are
computed based on ".cpu" directive. This will work clean for the standard
variants like cortex-a9. For custom variants which rely on standard cpu names
for assembly, the additional features of a CPU should be propagated. This can be
done via ".arch_extension" as long as the assembler supports it. The
implementation for krait along with unit test will be submitted in next patch.
llvm-svn: 230650
diff --git a/llvm/lib/Target/ARM/ARMArchExtName.h b/llvm/lib/Target/ARM/ARMArchExtName.h
new file mode 100644
index 0000000..bc1157a
--- /dev/null
+++ b/llvm/lib/Target/ARM/ARMArchExtName.h
@@ -0,0 +1,26 @@
+//===-- ARMArchExtName.h - List of the ARM Extension names ------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_ARM_ARMARCHEXTNAME_H
+#define LLVM_LIB_TARGET_ARM_ARMARCHEXTNAME_H
+
+namespace llvm {
+namespace ARM {
+
+enum ArchExtKind {
+ INVALID_ARCHEXT = 0
+
+#define ARM_ARCHEXT_NAME(NAME, ID) , ID
+#include "ARMArchExtName.def"
+};
+
+} // namespace ARM
+} // namespace llvm
+
+#endif