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Diffstat (limited to 'contrib/llvm/utils/TableGen/CodeGenIntrinsics.h')
-rw-r--r-- | contrib/llvm/utils/TableGen/CodeGenIntrinsics.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/contrib/llvm/utils/TableGen/CodeGenIntrinsics.h b/contrib/llvm/utils/TableGen/CodeGenIntrinsics.h new file mode 100644 index 0000000..7bdb7e1 --- /dev/null +++ b/contrib/llvm/utils/TableGen/CodeGenIntrinsics.h @@ -0,0 +1,103 @@ +//===- CodeGenIntrinsic.h - Intrinsic Class Wrapper ------------*- C++ -*--===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines a wrapper class for the 'Intrinsic' TableGen class. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_UTILS_TABLEGEN_CODEGENINTRINSICS_H +#define LLVM_UTILS_TABLEGEN_CODEGENINTRINSICS_H + +#include "llvm/CodeGen/MachineValueType.h" +#include <string> +#include <vector> + +namespace llvm { + class Record; + class RecordKeeper; + class CodeGenTarget; + + struct CodeGenIntrinsic { + Record *TheDef; // The actual record defining this intrinsic. + std::string Name; // The name of the LLVM function "llvm.bswap.i32" + std::string EnumName; // The name of the enum "bswap_i32" + std::string GCCBuiltinName;// Name of the corresponding GCC builtin, or "". + std::string MSBuiltinName; // Name of the corresponding MS builtin, or "". + std::string TargetPrefix; // Target prefix, e.g. "ppc" for t-s intrinsics. + + /// IntrinsicSignature - This structure holds the return values and + /// parameter values of an intrinsic. If the number of return values is > 1, + /// then the intrinsic implicitly returns a first-class aggregate. The + /// numbering of the types starts at 0 with the first return value and + /// continues from there through the parameter list. This is useful for + /// "matching" types. + struct IntrinsicSignature { + /// RetVTs - The MVT::SimpleValueType for each return type. Note that this + /// list is only populated when in the context of a target .td file. When + /// building Intrinsics.td, this isn't available, because we don't know + /// the target pointer size. + std::vector<MVT::SimpleValueType> RetVTs; + + /// RetTypeDefs - The records for each return type. + std::vector<Record*> RetTypeDefs; + + /// ParamVTs - The MVT::SimpleValueType for each parameter type. Note that + /// this list is only populated when in the context of a target .td file. + /// When building Intrinsics.td, this isn't available, because we don't + /// know the target pointer size. + std::vector<MVT::SimpleValueType> ParamVTs; + + /// ParamTypeDefs - The records for each parameter type. + std::vector<Record*> ParamTypeDefs; + }; + + IntrinsicSignature IS; + + // Memory mod/ref behavior of this intrinsic. + enum ModRefKind { + NoMem, ReadArgMem, ReadMem, ReadWriteArgMem, ReadWriteMem + }; + ModRefKind ModRef; + + /// This is set to true if the intrinsic is overloaded by its argument + /// types. + bool isOverloaded; + + /// isCommutative - True if the intrinsic is commutative. + bool isCommutative; + + /// canThrow - True if the intrinsic can throw. + bool canThrow; + + /// isNoDuplicate - True if the intrinsic is marked as noduplicate. + bool isNoDuplicate; + + /// isNoReturn - True if the intrinsic is no-return. + bool isNoReturn; + + /// isConvergent - True if the intrinsic is marked as convergent. + bool isConvergent; + + enum ArgAttribute { + NoCapture, + ReadOnly, + ReadNone + }; + std::vector<std::pair<unsigned, ArgAttribute> > ArgumentAttributes; + + CodeGenIntrinsic(Record *R); + }; + + /// LoadIntrinsics - Read all of the intrinsics defined in the specified + /// .td file. + std::vector<CodeGenIntrinsic> LoadIntrinsics(const RecordKeeper &RC, + bool TargetOnly); +} + +#endif |