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Support intrinsic calls (although no particular intrinsics are supported yet). 

Support indirect calls.
Support returning a float value.

llvm-svn: 14223
This commit is contained in:
Brian Gaeke 2004-06-18 06:27:48 +00:00
parent b7c4bac617
commit 5ebab28a8a
1 changed files with 22 additions and 4 deletions
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26
llvm/lib/Target/SparcV8/InstSelectSimple.cpp
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@ -554,6 +554,16 @@ void V8ISel::visitStoreInst(StoreInst &I) {
}
void V8ISel::visitCallInst(CallInst &I) {
MachineInstr *TheCall;
// Is it an intrinsic function call?
if (Function *F = I.getCalledFunction()) {
if (Intrinsic::ID ID = (Intrinsic::ID)F->getIntrinsicID()) {
visitIntrinsicCall(ID, I); // Special intrinsics are not handled here
return;
}
}
// Deal with args
assert (I.getNumOperands () < 8
&& "Can't handle pushing excess call args on the stack yet");
static const unsigned OutgoingArgRegs[] = { V8::O0, V8::O1, V8::O2, V8::O3,
@ -566,19 +576,27 @@ void V8ISel::visitCallInst(CallInst &I) {
.addReg (ArgReg);
}
assert (I.getCalledFunction() && "don't know what to do with NULL function!");
BuildMI (BB, V8::CALL, 1).addGlobalAddress(I.getCalledFunction (), true);
// Emit call instruction
if (Function *F = I.getCalledFunction ()) {
BuildMI (BB, V8::CALL, 1).addGlobalAddress (F, true);
} else { // Emit an indirect call...
unsigned Reg = getReg (I.getCalledValue ());
BuildMI (BB, V8::JMPLrr, 3, V8::O7).addReg (Reg).addReg (V8::G0);
}
// Deal w/ return value: schlep it over into the destination register
if (I.getType () == Type::VoidTy)
return;
unsigned DestReg = getReg (I);
// Deal w/ return value
switch (getClass (I.getType ())) {
case cByte:
case cShort:
case cInt:
// Schlep it over into the destination register
BuildMI (BB, V8::ORrr, 2, DestReg).addReg(V8::G0).addReg(V8::O0);
break;
case cFloat:
BuildMI (BB, V8::FMOVS, 2, DestReg).addReg(V8::F0);
break;
default:
std::cerr << "Return type of call instruction not handled: " << I;
abort ();