Make SSE42 and SSE4A not imply POPCNT. POPCNT should be able to be disabled on its own without disabling SSE4.2 or SSE4A.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147339 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86.td b/lib/Target/X86/X86.td
index 8229ca5..ad3b3aa 100644
--- a/lib/Target/X86/X86.td
+++ b/lib/Target/X86/X86.td
@@ -55,7 +55,7 @@
                                       [FeatureSSSE3]>;
 def FeatureSSE42   : SubtargetFeature<"sse42", "X86SSELevel", "SSE42",
                                       "Enable SSE 4.2 instructions",
-                                      [FeatureSSE41, FeaturePOPCNT]>;
+                                      [FeatureSSE41]>;
 def Feature3DNow   : SubtargetFeature<"3dnow", "X863DNowLevel", "ThreeDNow",
                                       "Enable 3DNow! instructions",
                                       [FeatureMMX]>;
@@ -77,8 +77,7 @@
                                         "IsUAMemFast", "true",
                                         "Fast unaligned memory access">;
 def FeatureSSE4A   : SubtargetFeature<"sse4a", "HasSSE4A", "true",
-                                      "Support SSE 4a instructions",
-                                      [FeaturePOPCNT]>;
+                                      "Support SSE 4a instructions">;
 
 def FeatureAVX     : SubtargetFeature<"avx", "HasAVX", "true",
                                       "Enable AVX instructions">;