Custom lower PSIGN and PSHUFB intrinsics to their corresponding target specific nodes so we can remove the isel patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148933 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 77d0e12..74b02ad 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -9342,6 +9342,18 @@
   case Intrinsic::x86_avx2_pcmpgt_q:
     return DAG.getNode(X86ISD::PCMPGT, dl, Op.getValueType(),
                        Op.getOperand(1), Op.getOperand(2));
+  case Intrinsic::x86_ssse3_pshuf_b_128:
+  case Intrinsic::x86_avx2_pshuf_b:
+    return DAG.getNode(X86ISD::PSHUFB, dl, Op.getValueType(),
+                       Op.getOperand(1), Op.getOperand(2));
+  case Intrinsic::x86_ssse3_psign_b_128:
+  case Intrinsic::x86_ssse3_psign_w_128:
+  case Intrinsic::x86_ssse3_psign_d_128:
+  case Intrinsic::x86_avx2_psign_b:
+  case Intrinsic::x86_avx2_psign_w:
+  case Intrinsic::x86_avx2_psign_d:
+    return DAG.getNode(X86ISD::PSIGN, dl, Op.getValueType(),
+                       Op.getOperand(1), Op.getOperand(2));
 
   // ptest and testp intrinsics. The intrinsic these come from are designed to
   // return an integer value, not just an instruction so lower it to the ptest