diff options
Diffstat (limited to 'utils')
| -rw-r--r-- | utils/TableGen/RegisterInfoEmitter.cpp | 25 |
1 files changed, 4 insertions, 21 deletions
diff --git a/utils/TableGen/RegisterInfoEmitter.cpp b/utils/TableGen/RegisterInfoEmitter.cpp index c00c7aa62d..e5185020b7 100644 --- a/utils/TableGen/RegisterInfoEmitter.cpp +++ b/utils/TableGen/RegisterInfoEmitter.cpp @@ -622,26 +622,9 @@ RegisterInfoEmitter::runTargetDesc(raw_ostream &OS, CodeGenTarget &Target, // Give the register class a legal C name if it's anonymous. std::string Name = RC.TheDef->getName(); - OS << " // " << Name - << " Register Class sub-classes...\n" - << " static const TargetRegisterClass* const " - << Name << "Subclasses[] = {\n "; - - bool Empty = true; - for (unsigned rc2 = 0, e2 = RegisterClasses.size(); rc2 != e2; ++rc2) { - const CodeGenRegisterClass &RC2 = *RegisterClasses[rc2]; - - // Sub-classes are used to determine if a virtual register can be used - // as an instruction operand, or if it must be copied first. - if (rc == rc2 || !RC.hasSubClass(&RC2)) continue; - - if (!Empty) OS << ", "; - OS << "&" << getQualifiedName(RC2.TheDef) << "RegClass"; - Empty = false; - } - - OS << (!Empty ? ", " : "") << "NULL"; - OS << "\n };\n\n"; + OS << " static const unsigned " << Name << "SubclassMask[] = { "; + printBitVectorAsHex(OS, RC.getSubClasses(), 32); + OS << "};\n\n"; } // Emit NULL terminated super-class lists. @@ -668,7 +651,7 @@ RegisterInfoEmitter::runTargetDesc(raw_ostream &OS, CodeGenTarget &Target, << Target.getName() << "MCRegisterClasses[" << RC.getName() + "RegClassID" << "], " << RC.getName() + "VTs" << ", " - << RC.getName() + "Subclasses" << ", "; + << RC.getName() + "SubclassMask" << ", "; if (RC.getSuperClasses().empty()) OS << "NullRegClasses, "; else |