Add driver support for FP, SIMD and crypto defaults.

Although we wire up a bit for v8fp for macro setting
purposes, we don't set a macro yet. Need to ask list
about that.

Change-Id: Ic9819593ce00882fbec72757ffccc6f0b18160a0

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193367 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 2294688..397f641 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -645,12 +645,16 @@
     Features.push_back("-neon");
   } else if (FPU == "fp-armv8") {
     Features.push_back("+fp-armv8");
+    Features.push_back("-neon");
+    Features.push_back("-crypto");
   } else if (FPU == "neon-fp-armv8") {
     Features.push_back("+fp-armv8");
     Features.push_back("+neon");
+    Features.push_back("-crypto");
   } else if (FPU == "crypto-neon-fp-armv8") {
-    Features.push_back("+crypto");
     Features.push_back("+fp-armv8");
+    Features.push_back("+neon");
+    Features.push_back("+crypto");
   } else if (FPU == "neon") {
     Features.push_back("+neon");
   } else if (FPU == "none") {