Turn avx insert intrinsic calls into INSERT_SUBVECTOR DAG nodes and remove duplicate patterns for selecting the intrinsics

llvm-svn: 151342

1 files changed, 15 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 048fc6ff084..c7d676e05e4 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -4831,6 +4831,21 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
     setValue(&I, Res);
     return 0;
   }
+  case Intrinsic::x86_avx_vinsertf128_pd_256:
+  case Intrinsic::x86_avx_vinsertf128_ps_256:
+  case Intrinsic::x86_avx_vinsertf128_si_256: {
+    DebugLoc dl = getCurDebugLoc();
+    EVT DestVT = TLI.getValueType(I.getType());
+    EVT ElVT = TLI.getValueType(I.getArgOperand(1)->getType());
+    uint64_t Idx = (cast<ConstantInt>(I.getArgOperand(2))->getZExtValue() & 1) *
+                   ElVT.getVectorNumElements();
+    Res = DAG.getNode(ISD::INSERT_SUBVECTOR, dl, DestVT,
+                      getValue(I.getArgOperand(0)),
+                      getValue(I.getArgOperand(1)),
+                      DAG.getConstant(Idx, MVT::i32));
+    setValue(&I, Res);
+    return 0;
+  }
   case Intrinsic::convertff:
   case Intrinsic::convertfsi:
   case Intrinsic::convertfui: