This is an archive of the discontinued LLVM Phabricator instance.

Differential D45034

[DebugInfo] In FastISel, convert llvm.dbg.label to DBG_LABEL MI.
AbandonedPublic

Authored by HsiangKai on Mar 29 2018, 7:10 AM.

Details

Reviewers
rnk
chenwj
Summary

Convert llvm.dbg.label(!label_metadata) to DBG_LABEL !label_metadata.

Diff Detail

Repository
rL LLVM

Revision Contents

PathSize
lib/
CodeGen/
SelectionDAG/
13 lines

Diff 140235

lib/CodeGen/SelectionDAG/FastISel.cpp

Show First 20 Lines • Show All 1,394 Lines • ▼ Show 20 Lines if (!V) {
DI->getVariable(), DI->getExpression()); DI->getVariable(), DI->getExpression());
} else { } else {
// We can't yet handle anything else here because it would require // We can't yet handle anything else here because it would require
// generating code, thus altering codegen because of debug info. // generating code, thus altering codegen because of debug info.
DEBUG(dbgs() << "Dropping debug info for " << *DI << "\n"); DEBUG(dbgs() << "Dropping debug info for " << *DI << "\n");
} }
return true; return true;
} }
case Intrinsic::dbg_label: {
const DbgLabelInst *DI = cast<DbgLabelInst>(II);
assert(DI->getLabel() && "Missing label");
if (!FuncInfo.MF->getMMI().hasDebugInfo()) {
DEBUG(dbgs() << "Dropping debug info for " << *DI << "\n");
return true;
}
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
TII.get(TargetOpcode::DBG_LABEL))
.addMetadata(DI->getLabel());
return true;
}
case Intrinsic::objectsize: { case Intrinsic::objectsize: {
ConstantInt *CI = cast<ConstantInt>(II->getArgOperand(1)); ConstantInt *CI = cast<ConstantInt>(II->getArgOperand(1));
unsigned long long Res = CI->isZero() ? -1ULL : 0; unsigned long long Res = CI->isZero() ? -1ULL : 0;
Constant *ResCI = ConstantInt::get(II->getType(), Res); Constant *ResCI = ConstantInt::get(II->getType(), Res);
unsigned ResultReg = getRegForValue(ResCI); unsigned ResultReg = getRegForValue(ResCI);
if (!ResultReg) if (!ResultReg)
return false; return false;
updateValueMap(II, ResultReg); updateValueMap(II, ResultReg);
▲ Show 20 Lines • Show All 999 Lines • Show Last 20 Lines