Implement ppc long double->uint conversion.
Make ppc long double constants print.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42882 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 87f3948..31a9791 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -3322,17 +3322,35 @@
}
break;
case Expand: {
- // Convert f32 / f64 to i32 / i64.
MVT::ValueType VT = Op.getValueType();
MVT::ValueType OVT = Node->getOperand(0).getValueType();
+ // Convert ppcf128 to i32
if (OVT == MVT::ppcf128 && VT == MVT::i32) {
- Result = DAG.getNode(ISD::FP_TO_SINT, VT,
+ if (Node->getOpcode()==ISD::FP_TO_SINT)
+ Result = DAG.getNode(ISD::FP_TO_SINT, VT,
DAG.getNode(ISD::FP_ROUND, MVT::f64,
(DAG.getNode(ISD::FP_ROUND_INREG,
MVT::ppcf128, Node->getOperand(0),
DAG.getValueType(MVT::f64)))));
+ else {
+ const uint64_t TwoE31[] = {0x41e0000000000000LL, 0};
+ APFloat apf = APFloat(APInt(128, 2, TwoE31));
+ Tmp2 = DAG.getConstantFP(apf, OVT);
+ // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X
+ // FIXME: generated code sucks.
+ Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2,
+ DAG.getNode(ISD::ADD, MVT::i32,
+ DAG.getNode(ISD::FP_TO_SINT, VT,
+ DAG.getNode(ISD::FSUB, OVT,
+ Node->getOperand(0), Tmp2)),
+ DAG.getConstant(0x80000000, MVT::i32)),
+ DAG.getNode(ISD::FP_TO_SINT, VT,
+ Node->getOperand(0)),
+ DAG.getCondCode(ISD::SETGE));
+ }
break;
}
+ // Convert f32 / f64 to i32 / i64.
RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL;
switch (Node->getOpcode()) {
case ISD::FP_TO_SINT: {
@@ -5170,7 +5188,11 @@
if (VT == MVT::ppcf128 &&
TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) ==
TargetLowering::Custom) {
- SDOperand Result = TLI.LowerOperation(Op, DAG);
+ SDOperand SrcLo, SrcHi, Src;
+ ExpandOp(Op.getOperand(0), SrcLo, SrcHi);
+ Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi);
+ SDOperand Result = TLI.LowerOperation(
+ DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG);
assert(Result.Val->getOpcode() == ISD::BUILD_PAIR);
Lo = Result.Val->getOperand(0);
Hi = Result.Val->getOperand(1);