[CodeGen] When Promoting, don't extend the 2nd FCOPYSIGN operand.

We don't care about its type, and there's even a combine that'll fold
away the FP_EXTEND if we let it run. However, until it does, we'll have
something broken like:
  (f32 (fp_extend (f64 v)))

Scalar f16 follow-up to r243924.

llvm-svn: 244858

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 8360b3d064a..3b15752e2e4 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -4278,7 +4278,6 @@ void SelectionDAGLegalize::PromoteNode(SDNode *Node) {
   case ISD::FREM:
   case ISD::FMINNUM:
   case ISD::FMAXNUM:
-  case ISD::FCOPYSIGN:
   case ISD::FPOW: {
     Tmp1 = DAG.getNode(ISD::FP_EXTEND, dl, NVT, Node->getOperand(0));
     Tmp2 = DAG.getNode(ISD::FP_EXTEND, dl, NVT, Node->getOperand(1));
@@ -4297,6 +4296,7 @@ void SelectionDAGLegalize::PromoteNode(SDNode *Node) {
                     DAG.getIntPtrConstant(0, dl)));
     break;
   }
+  case ISD::FCOPYSIGN:
   case ISD::FPOWI: {
     Tmp1 = DAG.getNode(ISD::FP_EXTEND, dl, NVT, Node->getOperand(0));
     Tmp2 = Node->getOperand(1);