Enhance APFloat to retain bits of NaNs (fixes oggenc).
Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41632 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index f2de2a3..0528eaf 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -362,12 +362,12 @@
/// isFloatingPointZero - Return true if this is 0.0 or -0.0.
static bool isFloatingPointZero(SDOperand Op) {
if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(Op))
- return CFP->isExactlyValue(-0.0) || CFP->isExactlyValue(0.0);
+ return CFP->getValueAPF().isZero();
else if (ISD::isEXTLoad(Op.Val) || ISD::isNON_EXTLoad(Op.Val)) {
// Maybe this has already been legalized into the constant pool?
if (ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(Op.getOperand(1)))
if (ConstantFP *CFP = dyn_cast<ConstantFP>(CP->getConstVal()))
- return CFP->isExactlyValue(-0.0) || CFP->isExactlyValue(0.0);
+ return CFP->getValueAPF().isZero();
}
return false;
}
@@ -530,7 +530,7 @@
assert(N->getOpcode() == ISD::BUILD_VECTOR);
if (PPC::isSplatShuffleMask(N, N->getNumOperands()))
if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(N))
- return CFP->isExactlyValue(-0.0);
+ return CFP->getValueAPF().isNegZero();
return false;
}
@@ -622,7 +622,7 @@
ValSizeInBytes = MVT::getSizeInBits(CN->getValueType(0))/8;
} else if (ConstantFPSDNode *CN = dyn_cast<ConstantFPSDNode>(OpVal)) {
assert(CN->getValueType(0) == MVT::f32 && "Only one legal FP vector type!");
- Value = FloatToBits(CN->getValue());
+ Value = FloatToBits(CN->getValueAPF().convertToFloat());
ValSizeInBytes = 4;
}
@@ -2194,7 +2194,7 @@
} else if (ConstantFPSDNode *CN = dyn_cast<ConstantFPSDNode>(OpVal)) {
assert(CN->getValueType(0) == MVT::f32 &&
"Only one legal FP vector type!");
- EltBits = FloatToBits(CN->getValue());
+ EltBits = FloatToBits(CN->getValueAPF().convertToFloat());
} else {
// Nonconstant element.
return true;