diff options
Diffstat (limited to 'utils/TableGen/CodeGenTarget.h')
-rw-r--r-- | utils/TableGen/CodeGenTarget.h | 66 |
1 files changed, 2 insertions, 64 deletions
diff --git a/utils/TableGen/CodeGenTarget.h b/utils/TableGen/CodeGenTarget.h index 1f1c34c..2516515 100644 --- a/utils/TableGen/CodeGenTarget.h +++ b/utils/TableGen/CodeGenTarget.h @@ -66,9 +66,7 @@ class CodeGenTarget { mutable DenseMap<const Record*, CodeGenInstruction*> Instructions; mutable CodeGenRegBank *RegBank; - mutable std::vector<CodeGenRegisterClass> RegisterClasses; mutable std::vector<MVT::SimpleValueType> LegalValueTypes; - void ReadRegisterClasses() const; void ReadInstructions() const; void ReadLegalValueTypes() const; @@ -107,71 +105,11 @@ public: const CodeGenRegister *getRegisterByName(StringRef Name) const; const std::vector<CodeGenRegisterClass> &getRegisterClasses() const { - if (RegisterClasses.empty()) ReadRegisterClasses(); - return RegisterClasses; + return getRegBank().getRegClasses(); } const CodeGenRegisterClass &getRegisterClass(Record *R) const { - const std::vector<CodeGenRegisterClass> &RC = getRegisterClasses(); - for (unsigned i = 0, e = RC.size(); i != e; ++i) - if (RC[i].TheDef == R) - return RC[i]; - assert(0 && "Didn't find the register class"); - abort(); - } - - /// getRegisterClassForRegister - Find the register class that contains the - /// specified physical register. If the register is not in a register - /// class, return null. If the register is in multiple classes, and the - /// classes have a superset-subset relationship and the same set of - /// types, return the superclass. Otherwise return null. - const CodeGenRegisterClass *getRegisterClassForRegister(Record *R) const { - const std::vector<CodeGenRegisterClass> &RCs = getRegisterClasses(); - const CodeGenRegisterClass *FoundRC = 0; - for (unsigned i = 0, e = RCs.size(); i != e; ++i) { - const CodeGenRegisterClass &RC = RegisterClasses[i]; - for (unsigned ei = 0, ee = RC.Elements.size(); ei != ee; ++ei) { - if (R != RC.Elements[ei]) - continue; - - // If a register's classes have different types, return null. - if (FoundRC && RC.getValueTypes() != FoundRC->getValueTypes()) - return 0; - - // If this is the first class that contains the register, - // make a note of it and go on to the next class. - if (!FoundRC) { - FoundRC = &RC; - break; - } - - std::vector<Record *> Elements(RC.Elements); - std::vector<Record *> FoundElements(FoundRC->Elements); - std::sort(Elements.begin(), Elements.end()); - std::sort(FoundElements.begin(), FoundElements.end()); - - // Check to see if the previously found class that contains - // the register is a subclass of the current class. If so, - // prefer the superclass. - if (std::includes(Elements.begin(), Elements.end(), - FoundElements.begin(), FoundElements.end())) { - FoundRC = &RC; - break; - } - - // Check to see if the previously found class that contains - // the register is a superclass of the current class. If so, - // prefer the superclass. - if (std::includes(FoundElements.begin(), FoundElements.end(), - Elements.begin(), Elements.end())) - break; - - // Multiple classes, and neither is a superclass of the other. - // Return null. - return 0; - } - } - return FoundRC; + return *getRegBank().getRegClass(R); } /// getRegisterVTs - Find the union of all possible SimpleValueTypes for the |