Allow targets to custom handle softening of results or operands before trying the standard stuff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77974 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
index 5957e3a503..a4f3b1eb96 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
@@ -47,6 +47,10 @@ void DAGTypeLegalizer::SoftenFloatResult(SDNode *N, unsigned ResNo) {
         errs() << "\n");
   SDValue R = SDValue();
 
+  // See if the target wants to custom handle softening this result.
+  if (CustomLowerNode(N, N->getValueType(ResNo), true))
+        return;
+
   switch (N->getOpcode()) {
   default:
 #ifndef NDEBUG
@@ -535,6 +539,10 @@ bool DAGTypeLegalizer::SoftenFloatOperand(SDNode *N, unsigned OpNo) {
         errs() << "\n");
   SDValue Res = SDValue();
 
+  // See if target wants to custom handle softening this operand.
+  if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false))
+     return false;
+
   switch (N->getOpcode()) {
   default:
 #ifndef NDEBUG