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R600/SI: Add generic checks to SIInstrInfo::verifyInstruction()

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Added checks for number of operands and operand register classes.

Tested-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204054 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard 2014-03-17 17:03:49 +00:00
parent bbbc2b1140
commit 27b614fcd3
1 changed files with 41 additions and 0 deletions
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41
lib/Target/R600/SIInstrInfo.cpp
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@ -377,6 +377,47 @@ bool SIInstrInfo::verifyInstruction(const MachineInstr *MI,
int Src1Idx = AMDGPU::getNamedOperandIdx(Opcode, AMDGPU::OpName::src1); int Src1Idx = AMDGPU::getNamedOperandIdx(Opcode, AMDGPU::OpName::src1);
int Src2Idx = AMDGPU::getNamedOperandIdx(Opcode, AMDGPU::OpName::src2); int Src2Idx = AMDGPU::getNamedOperandIdx(Opcode, AMDGPU::OpName::src2);
// Make sure the number of operands is correct.
const MCInstrDesc &Desc = get(Opcode);
if (!Desc.isVariadic() &&
Desc.getNumOperands() != MI->getNumExplicitOperands()) {
ErrInfo = "Instruction has wrong number of operands.";
return false;
}
// Make sure the register classes are correct
for (unsigned i = 0, e = Desc.getNumOperands(); i != e; ++i) {
switch (Desc.OpInfo[i].OperandType) {
case MCOI::OPERAND_REGISTER:
break;
case MCOI::OPERAND_IMMEDIATE:
if (!MI->getOperand(i).isImm() && !MI->getOperand(i).isFPImm()) {
ErrInfo = "Expected immediate, but got non-immediate";
return false;
}
// Fall-through
default:
continue;
}
if (!MI->getOperand(i).isReg())
continue;
int RegClass = Desc.OpInfo[i].RegClass;
if (RegClass != -1) {
unsigned Reg = MI->getOperand(i).getReg();
if (TargetRegisterInfo::isVirtualRegister(Reg))
continue;
const TargetRegisterClass *RC = RI.getRegClass(RegClass);
if (!RC->contains(Reg)) {
ErrInfo = "Operand has incorrect register class.";
return false;
}
}
}
// Verify VOP* // Verify VOP*
if (isVOP1(Opcode) || isVOP2(Opcode) || isVOP3(Opcode) || isVOPC(Opcode)) { if (isVOP1(Opcode) || isVOP2(Opcode) || isVOP3(Opcode) || isVOPC(Opcode)) {
unsigned ConstantBusCount = 0; unsigned ConstantBusCount = 0;