Added support for mcpu krait

- krait processor currently modeled with the same features as A9.
- Krait processor additionally has VFP4 (fused multiply add/sub)
and hardware division features enabled.
- krait has currently the same Schedule model as A9
- krait cpu flag is not recognized by the GNU assembler yet,
it is replaced with march=armv7-a to avoid a lower march
from being used.

llvm-svn: 196619

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/Target/ARM/ARMSubtarget.h b/llvm/lib/Target/ARM/ARMSubtarget.h
index d6e8c81fb76..ca1e5d222d1 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.h
+++ b/llvm/lib/Target/ARM/ARMSubtarget.h
@@ -32,7 +32,7 @@ class ARMSubtarget : public ARMGenSubtargetInfo {
 protected:
   enum ARMProcFamilyEnum {
     Others, CortexA5, CortexA7, CortexA8, CortexA9, CortexA12, CortexA15, 
-    CortexR5, Swift, CortexA53, CortexA57
+    CortexR5, Swift, CortexA53, CortexA57, Krait
   };
   enum ARMProcClassEnum {
     None, AClass, RClass, MClass
@@ -261,8 +261,9 @@ public:
   bool isCortexA15() const { return ARMProcFamily == CortexA15; }
   bool isSwift()    const { return ARMProcFamily == Swift; }
   bool isCortexM3() const { return CPUString == "cortex-m3"; }
-  bool isLikeA9() const { return isCortexA9() || isCortexA15(); }
+  bool isLikeA9() const { return isCortexA9() || isCortexA15() || isKrait(); }
   bool isCortexR5() const { return ARMProcFamily == CortexR5; }
+  bool isKrait() const { return ARMProcFamily == Krait; }
 
   bool hasARMOps() const { return !NoARM; }