Separate V6 from V6T2 since the latter has some extra nice instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73085 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARM.td b/lib/Target/ARM/ARM.td
index 4ac6857..594811d 100644
--- a/lib/Target/ARM/ARM.td
+++ b/lib/Target/ARM/ARM.td
@@ -28,6 +28,8 @@
                                    "ARM v5TE, v5TEj, v5TExp">;
 def ArchV6      : SubtargetFeature<"v6", "ARMArchVersion", "V6",
                                    "ARM v6">;
+def ArchV6T2    : SubtargetFeature<"v6t2", "ARMArchVersion", "V6T2",
+                                   "ARM v6t2">;
 def ArchV7A     : SubtargetFeature<"v7a", "ARMArchVersion", "V7A",
                                    "ARM v7A">;
 def FeatureVFP2 : SubtargetFeature<"vfp2", "ARMFPUType", "VFPv2",
@@ -92,9 +94,11 @@
 def : Proc<"mpcorenovfp",     [ArchV6]>;
 def : Proc<"mpcore",          [ArchV6, FeatureVFP2]>;
 
-def : Proc<"arm1156t2-s",     [ArchV6, FeatureThumb2]>;
-def : Proc<"arm1156t2f-s",    [ArchV6, FeatureThumb2, FeatureVFP2]>;
+// V6T2 Processors.
+def : Proc<"arm1156t2-s",     [ArchV6T2, FeatureThumb2]>;
+def : Proc<"arm1156t2f-s",    [ArchV6T2, FeatureThumb2, FeatureVFP2]>;
 
+// V7 Processors.
 def : Proc<"cortex-a8",       [ArchV7A, FeatureThumb2, FeatureNEON]>;
 def : Proc<"cortex-a9",       [ArchV7A, FeatureThumb2, FeatureNEON]>;