Add APInt interfaces to APFloat (allows directly
access to bits). Use them in place of float and
double interfaces where appropriate.
First bits of x86 long double constants handling
(untested, probably does not work).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41858 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index 0221174..f25b113 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -1715,13 +1715,16 @@
if (FPC->getType() == Type::DoubleTy) {
double Val = FPC->getValueAPF().convertToDouble();
+ uint64_t i = *FPC->getValueAPF().convertToAPInt().getRawData();
Out << "static const ConstantDoubleTy FPConstant" << FPCounter++
- << " = 0x" << std::hex << DoubleToBits(Val) << std::dec
+ << " = 0x" << std::hex << i << std::dec
<< "ULL; /* " << Val << " */\n";
} else if (FPC->getType() == Type::FloatTy) {
float Val = FPC->getValueAPF().convertToFloat();
+ uint32_t i = (uint32_t)*FPC->getValueAPF().convertToAPInt().
+ getRawData();
Out << "static const ConstantFloatTy FPConstant" << FPCounter++
- << " = 0x" << std::hex << FloatToBits(Val) << std::dec
+ << " = 0x" << std::hex << i << std::dec
<< "U; /* " << Val << " */\n";
} else
assert(0 && "Unknown float type!");
diff --git a/lib/Target/MSIL/MSILWriter.cpp b/lib/Target/MSIL/MSILWriter.cpp
index 7178970..cd67df1 100644
--- a/lib/Target/MSIL/MSILWriter.cpp
+++ b/lib/Target/MSIL/MSILWriter.cpp
@@ -428,10 +428,10 @@
uint64_t X;
unsigned Size;
if (FP->getType()->getTypeID()==Type::FloatTyID) {
- X = FloatToBits(FP->getValueAPF().convertToFloat());
+ X = (uint32_t)*FP->getValueAPF().convertToAPInt().getRawData();
Size = 4;
} else {
- X = DoubleToBits(FP->getValueAPF().convertToDouble());
+ X = *FP->getValueAPF().convertToAPInt().getRawData();
Size = 8;
}
Out << "\tldc.r" << Size << "\t( " << utohexstr(X) << ')';
@@ -1473,10 +1473,10 @@
const ConstantFP* FP = cast<ConstantFP>(C);
if (Ty->getTypeID() == Type::FloatTyID)
Out << "int32 (" <<
- FloatToBits(FP->getValueAPF().convertToFloat()) << ')';
+ (uint32_t)*FP->getValueAPF().convertToAPInt().getRawData() << ')';
else
Out << "int64 (" <<
- DoubleToBits(FP->getValueAPF().convertToDouble()) << ')';
+ *FP->getValueAPF().convertToAPInt().getRawData() << ')';
break;
}
case Type::ArrayTyID:
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 6d3bcf7..95450ac 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -3410,11 +3410,11 @@
const Type *OpNTy = MVT::getTypeForValueType(EltVT);
std::vector<Constant*> CV;
if (EltVT == MVT::f64) {
- Constant *C = ConstantFP::get(OpNTy, APFloat(BitsToDouble(~(1ULL << 63))));
+ Constant *C = ConstantFP::get(OpNTy, APFloat(APInt(64, ~(1ULL << 63))));
CV.push_back(C);
CV.push_back(C);
} else {
- Constant *C = ConstantFP::get(OpNTy, APFloat(BitsToFloat(~(1U << 31))));
+ Constant *C = ConstantFP::get(OpNTy, APFloat(APInt(32, ~(1U << 31))));
CV.push_back(C);
CV.push_back(C);
CV.push_back(C);
@@ -3438,11 +3438,11 @@
const Type *OpNTy = MVT::getTypeForValueType(EltVT);
std::vector<Constant*> CV;
if (EltVT == MVT::f64) {
- Constant *C = ConstantFP::get(OpNTy, APFloat(BitsToDouble(1ULL << 63)));
+ Constant *C = ConstantFP::get(OpNTy, APFloat(APInt(64, 1ULL << 63)));
CV.push_back(C);
CV.push_back(C);
} else {
- Constant *C = ConstantFP::get(OpNTy, APFloat(BitsToFloat(1U << 31)));
+ Constant *C = ConstantFP::get(OpNTy, APFloat(APInt(32, 1U << 31)));
CV.push_back(C);
CV.push_back(C);
CV.push_back(C);
@@ -3479,13 +3479,13 @@
// First get the sign bit of second operand.
std::vector<Constant*> CV;
if (SrcVT == MVT::f64) {
- CV.push_back(ConstantFP::get(SrcTy, APFloat(BitsToDouble(1ULL << 63))));
- CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0)));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(64, 1ULL << 63))));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(64, 0))));
} else {
- CV.push_back(ConstantFP::get(SrcTy, APFloat(BitsToFloat(1U << 31))));
- CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
- CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
- CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 1U << 31))));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
}
Constant *C = ConstantVector::get(CV);
SDOperand CPIdx = DAG.getConstantPool(C, getPointerTy(), 4);
@@ -3507,13 +3507,13 @@
// Clear first operand sign bit.
CV.clear();
if (VT == MVT::f64) {
- CV.push_back(ConstantFP::get(SrcTy, APFloat(BitsToDouble(~(1ULL << 63)))));
- CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0)));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(64, ~(1ULL << 63)))));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(64, 0))));
} else {
- CV.push_back(ConstantFP::get(SrcTy, APFloat(BitsToFloat(~(1U << 31)))));
- CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
- CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
- CV.push_back(ConstantFP::get(SrcTy, APFloat(0.0f)));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, ~(1U << 31)))));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
+ CV.push_back(ConstantFP::get(SrcTy, APFloat(APInt(32, 0))));
}
C = ConstantVector::get(CV);
CPIdx = DAG.getConstantPool(C, getPointerTy(), 4);