FPSelect and more custom lowering
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24535 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AlphaISelLowering.cpp b/lib/Target/Alpha/AlphaISelLowering.cpp
index 92ba16e..3ebb046 100644
--- a/lib/Target/Alpha/AlphaISelLowering.cpp
+++ b/lib/Target/Alpha/AlphaISelLowering.cpp
@@ -73,7 +73,9 @@
setOperationAction(ISD::UINT_TO_FP, MVT::i64, Expand);
setOperationAction(ISD::SINT_TO_FP, MVT::i64, Custom);
-
+ setOperationAction(ISD::FP_TO_UINT, MVT::i64, Expand);
+ setOperationAction(ISD::FP_TO_SINT, MVT::i64, Custom);
+
if (!TM.getSubtarget<AlphaSubtarget>().hasCT()) {
setOperationAction(ISD::CTPOP , MVT::i64 , Expand);
setOperationAction(ISD::CTTZ , MVT::i64 , Expand);
@@ -412,7 +414,28 @@
isDouble?MVT::f64:MVT::f32, LD);
return FP;
}
+ case ISD::FP_TO_SINT: {
+ bool isDouble = MVT::f64 == Op.getOperand(0).getValueType();
+ SDOperand src = Op.getOperand(0);
+
+ if (!isDouble) //Promote
+ src = DAG.getNode(ISD::FP_EXTEND, MVT::f64, src);
+
+ src = DAG.getNode(AlphaISD::CVTTQ_, MVT::f64, src);
+
+ if (useITOF) {
+ return DAG.getNode(AlphaISD::FTOIT_, MVT::i64, src);
+ } else {
+ int FrameIdx =
+ DAG.getMachineFunction().getFrameInfo()->CreateStackObject(8, 8);
+ SDOperand FI = DAG.getFrameIndex(FrameIdx, MVT::i64);
+ SDOperand ST = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(),
+ src, FI, DAG.getSrcValue(0));
+ return DAG.getLoad(MVT::i64, ST, FI, DAG.getSrcValue(0));
+ }
}
+
+ }
+
return SDOperand();
}
-