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Add support for shift instructions, wrap some long lines

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llvm-svn: 12740
This commit is contained in:
Chris Lattner 2004-04-07 04:27:16 +00:00
parent ded6e64b53
commit be45dbdaf8
1 changed files with 24 additions and 15 deletions
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39
lib/Target/SparcV8/InstSelectSimple.cpp
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@ -57,9 +57,10 @@ namespace {
BB = MBBMap[&LLVM_BB];
}
void visitBinaryOperator(BinaryOperator &I);
void visitCallInst(CallInst &I);
void visitReturnInst(ReturnInst &RI);
void visitBinaryOperator(Instruction &I);
void visitShiftInstruction(Instruction &I) { visitBinaryOperator(I); }
void visitCallInst(CallInst &I);
void visitReturnInst(ReturnInst &RI);
void visitInstruction(Instruction &I) {
std::cerr << "Unhandled instruction: " << I;
@ -169,31 +170,36 @@ void V8ISel::copyConstantToRegister(MachineBasicBlock *MBB,
Constant *C, unsigned R) {
if (ConstantInt *CI = dyn_cast<ConstantInt> (C)) {
unsigned Class = getClass(C->getType());
uint64_t Val = CI->getRawValue ();
switch (Class) {
case cByte:
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (V8::G0).addImm ((uint8_t) CI->getRawValue ());
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (V8::G0).addImm((uint8_t)Val);
return;
case cShort: {
unsigned TmpReg = makeAnotherReg (C->getType ());
BuildMI (*MBB, IP, V8::SETHIi, 1, TmpReg).addImm (((uint16_t) CI->getRawValue ()) >> 10);
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (TmpReg).addImm (((uint16_t) CI->getRawValue ()) & 0x03ff);
BuildMI (*MBB, IP, V8::SETHIi, 1, TmpReg)
.addImm (((uint16_t) Val) >> 10);
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (TmpReg)
.addImm (((uint16_t) Val) & 0x03ff);
return;
}
case cInt: {
unsigned TmpReg = makeAnotherReg (C->getType ());
BuildMI (*MBB, IP, V8::SETHIi, 1, TmpReg).addImm (((uint32_t) CI->getRawValue ()) >> 10);
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (TmpReg).addImm (((uint32_t) CI->getRawValue ()) & 0x03ff);
BuildMI (*MBB, IP, V8::SETHIi, 1, TmpReg).addImm(((uint32_t)Val) >> 10);
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (TmpReg)
.addImm (((uint32_t) Val) & 0x03ff);
return;
}
case cLong: {
unsigned TmpReg = makeAnotherReg (Type::UIntTy);
uint32_t topHalf, bottomHalf;
topHalf = (uint32_t) (CI->getRawValue () >> 32);
bottomHalf = (uint32_t) (CI->getRawValue () & 0x0ffffffffULL);
uint32_t topHalf = (uint32_t) (Val >> 32);
uint32_t bottomHalf = (uint32_t)Val;
BuildMI (*MBB, IP, V8::SETHIi, 1, TmpReg).addImm (topHalf >> 10);
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (TmpReg).addImm (topHalf & 0x03ff);
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (TmpReg)
.addImm (topHalf & 0x03ff);
BuildMI (*MBB, IP, V8::SETHIi, 1, TmpReg).addImm (bottomHalf >> 10);
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (TmpReg).addImm (bottomHalf & 0x03ff);
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (TmpReg)
.addImm (bottomHalf & 0x03ff);
return;
}
default:
@ -282,7 +288,7 @@ void V8ISel::visitReturnInst(ReturnInst &I) {
return;
}
void V8ISel::visitBinaryOperator (BinaryOperator &I) {
void V8ISel::visitBinaryOperator (Instruction &I) {
unsigned DestReg = getReg (I);
unsigned Op0Reg = getReg (I.getOperand (0));
unsigned Op1Reg = getReg (I.getOperand (1));
@ -298,6 +304,8 @@ void V8ISel::visitBinaryOperator (BinaryOperator &I) {
case Instruction::And: OpCase = 3; break;
case Instruction::Or: OpCase = 4; break;
case Instruction::Xor: OpCase = 5; break;
case Instruction::Shl: OpCase = 6; break;
case Instruction::Shr: OpCase = 7+I.getType()->isSigned(); break;
case Instruction::Div:
case Instruction::Rem: {
@ -332,7 +340,8 @@ void V8ISel::visitBinaryOperator (BinaryOperator &I) {
if (OpCase != ~0U) {
static const unsigned Opcodes[] = {
V8::ADDrr, V8::SUBrr, V8::SMULrr, V8::ANDrr, V8::ORrr, V8::XORrr
V8::ADDrr, V8::SUBrr, V8::SMULrr, V8::ANDrr, V8::ORrr, V8::XORrr,
V8::SLLrr, V8::SRLrr, V8::SRArr
};
BuildMI (BB, Opcodes[OpCase], 2, ResultReg).addReg (Op0Reg).addReg (Op1Reg);
}