RPCSX/llvm
1
0
Fork 0
mirror of https://github.com/RPCSX/llvm.git synced 2024-12-14 23:48:49 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Deal with %lo/%lm/%hm/%hh flags in getMachineOpValue().

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6522 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke 2003-06-02 02:13:26 +00:00
parent d50cbf00e3
commit c3eaa89933
1 changed files with 21 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
lib/Target/SparcV9/SparcV9CodeEmitter.cpp
View File

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