[NVPTX] Expand v2f16 INSERT_VECTOR_ELT

Vectorization can create them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336227 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 9 insertions, 0 deletions

diff --git a/lib/Target/NVPTX/NVPTXISelLowering.cpp b/lib/Target/NVPTX/NVPTXISelLowering.cpp
index 19842b958a7..2536623fb85 100644
--- a/lib/Target/NVPTX/NVPTXISelLowering.cpp
+++ b/lib/Target/NVPTX/NVPTXISelLowering.cpp
@@ -375,6 +375,7 @@ NVPTXTargetLowering::NVPTXTargetLowering(const NVPTXTargetMachine &TM,
   setOperationAction(ISD::FP_TO_SINT, MVT::f16, Legal);
   setOperationAction(ISD::BUILD_VECTOR, MVT::v2f16, Custom);
   setOperationAction(ISD::EXTRACT_VECTOR_ELT, MVT::v2f16, Custom);
+  setOperationAction(ISD::INSERT_VECTOR_ELT, MVT::v2f16, Expand);
   setOperationAction(ISD::VECTOR_SHUFFLE, MVT::v2f16, Expand);
 
   setFP16OperationAction(ISD::SETCC, MVT::f16, Legal, Promote);
diff --git a/test/CodeGen/NVPTX/f16x2-instructions.ll b/test/CodeGen/NVPTX/f16x2-instructions.ll
index 3d58cfa3595..bd945b9e400 100644
--- a/test/CodeGen/NVPTX/f16x2-instructions.ll
+++ b/test/CodeGen/NVPTX/f16x2-instructions.ll
@@ -1431,5 +1431,13 @@ define <2 x half> @test_shufflevector(<2 x half> %a) #0 {
   ret <2 x half> %s

 }

 

+; CHECK-LABEL: test_insertelement(

+; CHECK: mov.b32 {%h2, %tmp_hi}, %hh1;

+; CHECK: mov.b32 %hh2, {%h2, %h1};

+define <2 x half> @test_insertelement(<2 x half> %a, half %x) #0 {

+  %i = insertelement <2 x half> %a, half %x, i64 1

+  ret <2 x half> %i

+}

+

 attributes #0 = { nounwind }

 attributes #1 = { "unsafe-fp-math" = "true" }