//
// This file defines wrappers for the Target class and related global
// functionality. This makes it easier to access the data and provides a single
-// place that needs to check it for validity. All of these classes throw
-// exceptions on error conditions.
+// place that needs to check it for validity. All of these classes abort
+// on error conditions.
//
//===----------------------------------------------------------------------===//
-#ifndef CODEGEN_TARGET_H
-#define CODEGEN_TARGET_H
+#ifndef LLVM_UTILS_TABLEGEN_CODEGENTARGET_H
+#define LLVM_UTILS_TABLEGEN_CODEGENTARGET_H
-#include "CodeGenRegisters.h"
#include "CodeGenInstruction.h"
-#include "llvm/TableGen/Record.h"
+#include "CodeGenRegisters.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/TableGen/Record.h"
#include <algorithm>
namespace llvm {
RecordKeeper &Records;
Record *TargetRec;
- mutable DenseMap<const Record*, CodeGenInstruction*> Instructions;
- mutable CodeGenRegBank *RegBank;
+ mutable DenseMap<const Record*,
+ std::unique_ptr<CodeGenInstruction>> Instructions;
+ mutable std::unique_ptr<CodeGenRegBank> RegBank;
mutable std::vector<Record*> RegAltNameIndices;
- mutable std::vector<MVT::SimpleValueType> LegalValueTypes;
+ mutable SmallVector<MVT::SimpleValueType, 8> LegalValueTypes;
void ReadRegAltNameIndices() const;
void ReadInstructions() const;
void ReadLegalValueTypes() const;
- mutable CodeGenSchedModels *SchedModels;
+ mutable std::unique_ptr<CodeGenSchedModels> SchedModels;
mutable std::vector<const CodeGenInstruction*> InstrsByEnum;
public:
/// specified physical register.
std::vector<MVT::SimpleValueType> getRegisterVTs(Record *R) const;
- const std::vector<MVT::SimpleValueType> &getLegalValueTypes() const {
+ ArrayRef<MVT::SimpleValueType> getLegalValueTypes() const {
if (LegalValueTypes.empty()) ReadLegalValueTypes();
return LegalValueTypes;
}
/// isLegalValueType - Return true if the specified value type is natively
/// supported by the target (i.e. there are registers that directly hold it).
bool isLegalValueType(MVT::SimpleValueType VT) const {
- const std::vector<MVT::SimpleValueType> &LegalVTs = getLegalValueTypes();
+ ArrayRef<MVT::SimpleValueType> LegalVTs = getLegalValueTypes();
for (unsigned i = 0, e = LegalVTs.size(); i != e; ++i)
if (LegalVTs[i] == VT) return true;
return false;
CodeGenSchedModels &getSchedModels() const;
private:
- DenseMap<const Record*, CodeGenInstruction*> &getInstructions() const {
+ DenseMap<const Record*, std::unique_ptr<CodeGenInstruction>> &
+ getInstructions() const {
if (Instructions.empty()) ReadInstructions();
return Instructions;
}
CodeGenInstruction &getInstruction(const Record *InstRec) const {
if (Instructions.empty()) ReadInstructions();
- DenseMap<const Record*, CodeGenInstruction*>::iterator I =
- Instructions.find(InstRec);
+ auto I = Instructions.find(InstRec);
assert(I != Instructions.end() && "Not an instruction");
return *I->second;
}
typedef std::vector<const CodeGenInstruction*>::const_iterator inst_iterator;
inst_iterator inst_begin() const{return getInstructionsByEnumValue().begin();}
inst_iterator inst_end() const { return getInstructionsByEnumValue().end(); }
+ iterator_range<inst_iterator> instructions() const {
+ return make_range(inst_begin(), inst_end());
+ }
/// isLittleEndianEncoding - are instruction bit patterns defined as [0..n]?
///
bool isLittleEndianEncoding() const;
+ /// reverseBitsForLittleEndianEncoding - For little-endian instruction bit
+ /// encodings, reverse the bit order of all instructions.
+ void reverseBitsForLittleEndianEncoding();
+
+ /// guessInstructionProperties - should we just guess unset instruction
+ /// properties?
+ bool guessInstructionProperties() const;
+
private:
void ComputeInstrsByEnum() const;
};