Masked gather and scatter - added DAGCombine visitors

[oota-llvm.git] / lib / CodeGen / TargetLoweringBase.cpp

diff --git a/lib/CodeGen/TargetLoweringBase.cpp b/lib/CodeGen/TargetLoweringBase.cpp
index 2162a513b43d1e4b59e3a4ad9544c10f4de62755..4dd279ede0dc5601b91feece915d5f8c6124ef5b 100644 (file)
--- a/lib/CodeGen/TargetLoweringBase.cpp
+++ b/lib/CodeGen/TargetLoweringBase.cpp
@@ -804,6 +804,14 @@ void TargetLoweringBase::initActions() {
     setOperationAction(ISD::FMAXNUM, VT, Expand);
     setOperationAction(ISD::FMAD, VT, Expand);
 
+    // Overflow operations default to expand
+    setOperationAction(ISD::SADDO, VT, Expand);
+    setOperationAction(ISD::SSUBO, VT, Expand);
+    setOperationAction(ISD::UADDO, VT, Expand);
+    setOperationAction(ISD::USUBO, VT, Expand);
+    setOperationAction(ISD::SMULO, VT, Expand);
+    setOperationAction(ISD::UMULO, VT, Expand);
+
     // These library functions default to expand.
     setOperationAction(ISD::FROUND, VT, Expand);
 
@@ -1256,10 +1264,19 @@ void TargetLoweringBase::computeRegisterProperties(
   }
 
   if (!isTypeLegal(MVT::f16)) {
-    NumRegistersForVT[MVT::f16] = NumRegistersForVT[MVT::i16];
-    RegisterTypeForVT[MVT::f16] = RegisterTypeForVT[MVT::i16];
-    TransformToType[MVT::f16] = MVT::i16;
-    ValueTypeActions.setTypeAction(MVT::f16, TypeSoftenFloat);
+    // If the target has native f32 support, promote f16 operations to f32.  If
+    // f32 is not supported, generate soft float library calls.
+    if (isTypeLegal(MVT::f32)) {
+      NumRegistersForVT[MVT::f16] = NumRegistersForVT[MVT::f32];
+      RegisterTypeForVT[MVT::f16] = RegisterTypeForVT[MVT::f32];
+      TransformToType[MVT::f16] = MVT::f32;
+      ValueTypeActions.setTypeAction(MVT::f16, TypePromoteFloat);
+    } else {
+      NumRegistersForVT[MVT::f16] = NumRegistersForVT[MVT::i16];
+      RegisterTypeForVT[MVT::f16] = RegisterTypeForVT[MVT::i16];
+      TransformToType[MVT::f16] = MVT::i16;
+      ValueTypeActions.setTypeAction(MVT::f16, TypeSoftenFloat);
+    }
   }
 
   // Loop over all of the vector value types to see which need transformations.