[AMDGPU] Split dot-insts feature

Differential Revision: https://reviews.llvm.org/D57971

llvm-svn: 353587
diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index d6abd18..17332ed 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -8708,7 +8708,7 @@
   EVT VT = N->getValueType(0);
   SDLoc SL(N);
 
-  if (!Subtarget->hasDotInsts() || VT != MVT::f32)
+  if (!Subtarget->hasDot2Insts() || VT != MVT::f32)
     return SDValue();
 
   // FMA((F32)S0.x, (F32)S1. x, FMA((F32)S0.y, (F32)S1.y, (F32)z)) ->