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Wrap long lines, remove dead code that is now handled by legalize

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21811 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-05-09 05:40:26 +00:00
parent 2afa1910d4
commit a80d2bd89c
1 changed files with 8 additions and 55 deletions

63
lib/Target/X86/X86ISelPattern.cpp

@ -152,7 +152,8 @@ X86TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
// dead loads.
SDOperand ArgValue;
if (!I->use_empty())
ArgValue = DAG.getLoad(ObjectVT, DAG.getEntryNode(), FIN, DAG.getSrcValue(NULL));
ArgValue = DAG.getLoad(ObjectVT, DAG.getEntryNode(), FIN,
DAG.getSrcValue(NULL));
else {
if (MVT::isInteger(ObjectVT))
ArgValue = DAG.getConstant(0, ObjectVT);
@ -250,13 +251,15 @@ X86TargetLowering::LowerCallTo(SDOperand Chain,
case MVT::i32:
case MVT::f32:
Stores.push_back(DAG.getNode(ISD::STORE, MVT::Other, Chain,
Args[i].first, PtrOff, DAG.getSrcValue(NULL)));
Args[i].first, PtrOff,
DAG.getSrcValue(NULL)));
ArgOffset += 4;
break;
case MVT::i64:
case MVT::f64:
Stores.push_back(DAG.getNode(ISD::STORE, MVT::Other, Chain,
Args[i].first, PtrOff, DAG.getSrcValue(NULL)));
Args[i].first, PtrOff,
DAG.getSrcValue(NULL)));
ArgOffset += 8;
break;
}
@ -289,7 +292,8 @@ LowerVAArgNext(bool isVANext, SDOperand Chain, SDOperand VAList,
MVT::ValueType ArgVT = getValueType(ArgTy);
SDOperand Result;
if (!isVANext) {
Result = DAG.getLoad(ArgVT, DAG.getEntryNode(), VAList, DAG.getSrcValue(NULL));
Result = DAG.getLoad(ArgVT, DAG.getEntryNode(), VAList,
DAG.getSrcValue(NULL));
} else {
unsigned Amt;
if (ArgVT == MVT::i32)
@ -1596,15 +1600,6 @@ unsigned ISel::SelectExpr(SDOperand N) {
int FrameIdx = F->getFrameInfo()->CreateStackObject(Size, Size);
switch (SrcTy) {
case MVT::i64:
assert(0 && "Cast ulong to FP not implemented yet!");
// FIXME: this won't work for cast [u]long to FP
addFrameReference(BuildMI(BB, X86::MOV32mr, 5),
FrameIdx).addReg(Tmp1);
addFrameReference(BuildMI(BB, X86::MOV32mr, 5),
FrameIdx, 4).addReg(Tmp1+1);
addFrameReference(BuildMI(BB, X86::FILD64m, 5, Result), FrameIdx);
break;
case MVT::i32:
addFrameReference(BuildMI(BB, X86::MOV32mr, 5),
FrameIdx).addReg(Tmp1);
@ -1634,36 +1629,6 @@ unsigned ISel::SelectExpr(SDOperand N) {
unsigned CPI = F->getConstantPool()->getConstantPoolIndex(TheOffset);
BuildMI(BB, X86::FADD32m, 5, RealDestReg).addReg(Result)
.addConstantPoolIndex(CPI).addZImm(4).addReg(IsNeg).addSImm(0);
} else if (Node->getOpcode() == ISD::UINT_TO_FP && SrcTy == MVT::i64) {
// We need special handling for unsigned 64-bit integer sources. If the
// input number has the "sign bit" set, then we loaded it incorrectly as a
// negative 64-bit number. In this case, add an offset value.
// Emit a test instruction to see if the dynamic input value was signed.
BuildMI(BB, X86::TEST32rr, 2).addReg(Tmp1+1).addReg(Tmp1+1);
// If the sign bit is set, get a pointer to an offset, otherwise get a
// pointer to a zero.
MachineConstantPool *CP = F->getConstantPool();
unsigned Zero = MakeReg(MVT::i32);
Constant *Null = Constant::getNullValue(Type::UIntTy);
addConstantPoolReference(BuildMI(BB, X86::LEA32r, 5, Zero),
CP->getConstantPoolIndex(Null));
unsigned Offset = MakeReg(MVT::i32);
Constant *OffsetCst = ConstantUInt::get(Type::UIntTy, 0x5f800000);
addConstantPoolReference(BuildMI(BB, X86::LEA32r, 5, Offset),
CP->getConstantPoolIndex(OffsetCst));
unsigned Addr = MakeReg(MVT::i32);
BuildMI(BB, X86::CMOVS32rr, 2, Addr).addReg(Zero).addReg(Offset);
// Load the constant for an add. FIXME: this could make an 'fadd' that
// reads directly from memory, but we don't support these yet.
unsigned ConstReg = MakeReg(MVT::f64);
addDirectMem(BuildMI(BB, X86::FLD32m, 4, ConstReg), Addr);
BuildMI(BB, X86::FpADD, 2, RealDestReg).addReg(ConstReg).addReg(Result);
}
return RealDestReg;
}
@ -1705,10 +1670,6 @@ unsigned ISel::SelectExpr(SDOperand N) {
case MVT::i8: StoreClass = MVT::i16; break;
case MVT::i16: StoreClass = MVT::i32; break;
case MVT::i32: StoreClass = MVT::i64; break;
// The following treatment of cLong may not be perfectly right,
// but it survives chains of casts of the form
// double->ulong->double.
case MVT::i64: StoreClass = MVT::i64; break;
default: assert(0 && "Unknown store class!");
}
@ -1724,19 +1685,11 @@ unsigned ISel::SelectExpr(SDOperand N) {
case MVT::i32:
addFrameReference(BuildMI(BB, X86::FIST32m, 5), FrameIdx).addReg(Tmp1);
break;
case MVT::i64:
addFrameReference(BuildMI(BB, X86::FISTP64m, 5), FrameIdx).addReg(Tmp1);
break;
}
switch (Node->getValueType(0)) {
default:
assert(0 && "Unknown integer type!");
case MVT::i64:
// FIXME: this isn't gunna work.
assert(0 && "Cast FP to long not implemented yet!");
addFrameReference(BuildMI(BB, X86::MOV32rm, 4, Result), FrameIdx);
addFrameReference(BuildMI(BB, X86::MOV32rm, 4, Result+1), FrameIdx, 4);
case MVT::i32:
addFrameReference(BuildMI(BB, X86::MOV32rm, 4, Result), FrameIdx);
break;