Constant fold int-to-long-double conversions;
use APFloat for int-to-float/double; use
round-to-nearest for these (implementation-defined,
seems to match gcc).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42484 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 2fc8b0a..7f2b6e7 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -3220,7 +3220,7 @@
APFloat apf = APFloat(APInt(MVT::getSizeInBits(VT), 2, zero));
uint64_t x = 1ULL << ShiftAmt;
(void)apf.convertFromInteger(&x, MVT::getSizeInBits(NVT), false,
- APFloat::rmTowardZero);
+ APFloat::rmNearestTiesToEven);
Tmp2 = DAG.getConstantFP(apf, VT);
Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(),
Node->getOperand(0), Tmp2, ISD::SETLT);
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 042868d..e286eb0 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1598,7 +1598,7 @@
(void)apf.convertFromInteger(&Val,
MVT::getSizeInBits(Operand.getValueType()),
Opcode==ISD::SINT_TO_FP,
- APFloat::rmTowardZero);
+ APFloat::rmNearestTiesToEven);
return getConstantFP(apf, VT);
}
case ISD::BIT_CONVERT: