Add a target legalize hook for SplitVectorOperand

CustomLowerNode was not being called during SplitVectorOperand,
meaning custom legalization could not be used by targets.

This also adds a test case for NVPTX that depends on this custom
legalization.

Differential Revision: http://llvm-reviews.chandlerc.com/D1195

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187198 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 5 insertions, 1 deletions

diff --git a/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
index 75bb609..72c16b5 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
@@ -1031,6 +1031,10 @@ bool DAGTypeLegalizer::SplitVectorOperand(SDNode *N, unsigned OpNo) {
         dbgs() << "\n");
   SDValue Res = SDValue();
 
+  // See if the target wants to custom split this node.
+  if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false))
+    return false;
+
   if (Res.getNode() == 0) {
     switch (N->getOpcode()) {
     default:
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index e75781e..ad2d308 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -996,7 +996,7 @@ void X86TargetLowering::resetOperationActions() {
     setLoadExtAction(ISD::EXTLOAD,              MVT::v2f32, Legal);
   }
 
-  if (Subtarget->hasSSE41()) {
+  if (!TM.Options.UseSoftFloat && Subtarget->hasSSE41()) {
     setOperationAction(ISD::FFLOOR,             MVT::f32,   Legal);
     setOperationAction(ISD::FCEIL,              MVT::f32,   Legal);
     setOperationAction(ISD::FTRUNC,             MVT::f32,   Legal);