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Support cast float to float, cast double to float, and cast float to double.

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(It's not yet clear how to copy doubles from register to register.)

llvm-svn: 14371
This commit is contained in:
Brian Gaeke 2004-06-24 21:22:08 +00:00
parent ce388d6970
commit 8ce4fc5917
1 changed files with 27 additions and 10 deletions
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37
lib/Target/SparcV8/InstSelectSimple.cpp
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@ -517,16 +517,33 @@ void V8ISel::emitCastOperation(MachineBasicBlock *BB,
}
}
} else {
if (oldTyClass < cLong && newTyClass == cFloat) {
// cast int to float. Store it to a stack slot and then load
// it using ldf into a floating point register. then do fitos.
std::cerr << "Casts to float still unsupported: SrcTy = "
<< *SrcTy << ", DestTy = " << *DestTy << "\n";
abort ();
} else if (oldTyClass < cLong && newTyClass == cDouble) {
std::cerr << "Casts to double still unsupported: SrcTy = "
<< *SrcTy << ", DestTy = " << *DestTy << "\n";
abort ();
if (newTyClass == cFloat) {
switch (oldTyClass) {
case cFloat:
BuildMI (*BB, IP, V8::FMOVS, 1, DestReg).addReg (SrcReg);
break;
case cDouble:
BuildMI (*BB, IP, V8::FDTOS, 1, DestReg).addReg (SrcReg);
break;
default:
// cast int to float. Store it to a stack slot and then load
// it using ldf into a floating point register. then do fitos.
std::cerr << "Casts to float still unsupported: SrcTy = "
<< *SrcTy << ", DestTy = " << *DestTy << "\n";
abort ();
break;
}
} else if (newTyClass == cDouble) {
switch (oldTyClass) {
case cFloat:
BuildMI (*BB, IP, V8::FSTOD, 1, DestReg).addReg (SrcReg);
break;
default:
std::cerr << "Casts to double still unsupported: SrcTy = "
<< *SrcTy << ", DestTy = " << *DestTy << "\n";
abort ();
break;
}
} else {
std::cerr << "Cast still unsupported: SrcTy = "
<< *SrcTy << ", DestTy = " << *DestTy << "\n";