- case Matcher::CheckMultiOpcode: {
- const CheckMultiOpcodeMatcher *CMO = cast<CheckMultiOpcodeMatcher>(N);
- OS << "OPC_CheckMultiOpcode, " << CMO->getNumOpcodeNames() << ", ";
- for (unsigned i = 0, e = CMO->getNumOpcodeNames(); i != e; ++i)
- OS << CMO->getOpcodeName(i) << ", ";
+ // We need to encode the opcode and the offset of the case code before
+ // emitting the case code. Handle this by buffering the output into a
+ // string while we get the size. Unfortunately, the offset of the
+ // children depends on the VBR size of the child, so for large children we
+ // have to iterate a bit.
+ SmallString<128> TmpBuf;
+ unsigned ChildSize = 0;
+ unsigned VBRSize = 0;
+ do {
+ VBRSize = GetVBRSize(ChildSize);
+
+ TmpBuf.clear();
+ raw_svector_ostream OS(TmpBuf);
+ formatted_raw_ostream FOS(OS);
+ ChildSize = EmitMatcherList(Child, Indent+1, CurrentIdx+VBRSize+IdxSize,
+ FOS);
+ } while (GetVBRSize(ChildSize) != VBRSize);
+
+ assert(ChildSize != 0 && "Should not have a zero-sized child!");
+
+ if (i != 0) {
+ OS.PadToColumn(Indent*2);
+ if (!OmitComments)
+ OS << (isa<SwitchOpcodeMatcher>(N) ?
+ "/*SwitchOpcode*/ " : "/*SwitchType*/ ");
+ }
+
+ // Emit the VBR.
+ CurrentIdx += EmitVBRValue(ChildSize, OS);
+
+ OS << ' ';
+ if (const SwitchOpcodeMatcher *SOM = dyn_cast<SwitchOpcodeMatcher>(N))
+ OS << "TARGET_VAL(" << SOM->getCaseOpcode(i).getEnumName() << "),";
+ else
+ OS << getEnumName(cast<SwitchTypeMatcher>(N)->getCaseType(i)) << ',';
+
+ CurrentIdx += IdxSize;
+
+ if (!OmitComments)
+ OS << "// ->" << CurrentIdx+ChildSize;
+ OS << '\n';
+ OS << TmpBuf.str();
+ CurrentIdx += ChildSize;
+ }
+
+ // Emit the final zero to terminate the switch.
+ OS.PadToColumn(Indent*2) << "0, ";
+ if (!OmitComments)
+ OS << (isa<SwitchOpcodeMatcher>(N) ?
+ "// EndSwitchOpcode" : "// EndSwitchType");
+