Use a signed vector type for the shift amount operand of unsigned shifts.
Neon shifts allow a mix of positive and negative shift amounts to shift
left or right, respectively, so the shift amount vector should always be
signed.  PR8482 (Radar 8603521).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119748 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Basic/arm_neon.td b/include/clang/Basic/arm_neon.td
index fa6ebb7..c0647e8 100644
--- a/include/clang/Basic/arm_neon.td
+++ b/include/clang/Basic/arm_neon.td
@@ -169,10 +169,10 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // E.3.11 Shifts by signed variable
-def VSHL   : SInst<"ddd", "csilUcUsUiUlQcQsQiQlQUcQUsQUiQUl">;
-def VQSHL  : SInst<"ddd", "csilUcUsUiUlQcQsQiQlQUcQUsQUiQUl">;
-def VRSHL  : SInst<"ddd", "csilUcUsUiUlQcQsQiQlQUcQUsQUiQUl">;
-def VQRSHL : SInst<"ddd", "csilUcUsUiUlQcQsQiQlQUcQUsQUiQUl">;
+def VSHL   : SInst<"ddx", "csilUcUsUiUlQcQsQiQlQUcQUsQUiQUl">;
+def VQSHL  : SInst<"ddx", "csilUcUsUiUlQcQsQiQlQUcQUsQUiQUl">;
+def VRSHL  : SInst<"ddx", "csilUcUsUiUlQcQsQiQlQUcQUsQUiQUl">;
+def VQRSHL : SInst<"ddx", "csilUcUsUiUlQcQsQiQlQUcQUsQUiQUl">;
 
 ////////////////////////////////////////////////////////////////////////////////
 // E.3.12 Shifts by constant