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Deal with %lo/%lm/%hm/%hh flags in getMachineOpValue().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6522 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -77,6 +77,9 @@ unsigned getRealRegNum(unsigned fakeReg, unsigned regClass) {
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int64_t SparcV9CodeEmitter::getMachineOpValue(MachineInstr &MI,
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MachineOperand &MO) {
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int64_t rv = 0; // Return value; defaults to 0 for unhandled cases
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// or things that get fixed up later by the JIT.
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if (MO.isPhysicalRegister()) {
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// This is necessary because the Sparc doesn't actually lay out registers
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// in the real fashion -- it skips those that it chooses not to allocate,
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@ -88,33 +91,41 @@ int64_t SparcV9CodeEmitter::getMachineOpValue(MachineInstr &MI,
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// Find the real register number for use in an instruction
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realReg = getRealRegNum(fakeReg, regClass);
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std::cerr << "Reg[" << fakeReg << "] = " << realReg << "\n";
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return realReg;
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rv = realReg;
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} else if (MO.isImmediate()) {
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return MO.getImmedValue();
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rv = MO.getImmedValue();
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} else if (MO.isPCRelativeDisp()) {
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std::cerr << "Saving reference to BB (PCRelDisp)\n";
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MCE->saveBBreference((BasicBlock*)MO.getVRegValue(), MI);
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return 0;
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} else if (MO.isMachineBasicBlock()) {
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std::cerr << "Saving reference to BB (MBB)\n";
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MCE->saveBBreference(MO.getMachineBasicBlock()->getBasicBlock(), MI);
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return 0;
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} else if (MO.isFrameIndex()) {
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std::cerr << "ERROR: Frame index unhandled.\n";
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return 0;
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} else if (MO.isConstantPoolIndex()) {
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std::cerr << "ERROR: Constant Pool index unhandled.\n";
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return 0;
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} else if (MO.isGlobalAddress()) {
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std::cerr << "ERROR: Global addr unhandled.\n";
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return 0;
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} else if (MO.isExternalSymbol()) {
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std::cerr << "ERROR: External symbol unhandled.\n";
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return 0;
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} else {
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std::cerr << "ERROR: Unknown type of MachineOperand: " << MO << "\n";
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//abort();
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return 0;
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}
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// Finally, deal with the various bitfield-extracting functions that
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// are used in SPARC assembly. (Some of these make no sense in combination
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// with some of the above; we'll trust that the instruction selector
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// will not produce nonsense, and not check for valid combinations here.)
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if (MO.opLoBits32()) { // %lo(val)
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return rv & 0x03ff;
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} else if (MO.opHiBits32()) { // %lm(val)
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return (rv >> 10) & 0x03fffff;
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} else if (MO.opLoBits64()) { // %hm(val)
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return (rv >> 32) & 0x03ff;
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} else if (MO.opHiBits64()) { // %hh(val)
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return rv >> 42;
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} else { // (unadorned) val
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return rv;
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}
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}
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