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0a96aea868
1. Main include corresponding to .cpp file, if any. 2. DMD and LDC includes. 3. LLVM includes. 4. System includes. Also updated a few include guards to match the default format.
76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
//===-- gen/abi.h - Target ABI description for IR generation ----*- C++ -*-===//
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//
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// LDC – the LLVM D compiler
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//
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// This file is distributed under the BSD-style LDC license. See the LICENSE
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// file for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This interface is used by the IR generation code to accomodate any
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// additional transformations necessary for the given target ABI (the direct
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// LLVM IR representation for C structs unfortunately does not always lead to
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// the right ABI, for example on x86_64).
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//
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//===----------------------------------------------------------------------===//
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#ifndef LDC_GEN_ABI_H
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#define LDC_GEN_ABI_H
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#include <vector>
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struct Type;
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struct TypeFunction;
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struct IrFuncTyArg;
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struct DValue;
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namespace llvm
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{
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class Type;
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class Value;
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}
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// return rewrite rule
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struct ABIRewrite
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{
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/// get a rewritten value back to its original form
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virtual llvm::Value* get(Type* dty, DValue* v) = 0;
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/// get a rewritten value back to its original form and store result in provided lvalue
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/// this one is optional and defaults to calling the one above
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virtual void getL(Type* dty, DValue* v, llvm::Value* lval);
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/// put out rewritten value
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virtual llvm::Value* put(Type* dty, DValue* v) = 0;
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/// should return the transformed type for this rewrite
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virtual llvm::Type* type(Type* dty, llvm::Type* t) = 0;
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};
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// interface called by codegen
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struct TargetABI
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{
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/// Returns the ABI for the target we're compiling for
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static TargetABI* getTarget();
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/// Returns the ABI for intrinsics
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static TargetABI* getIntrinsic();
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/// Called if a new function type is resolved
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virtual void newFunctionType(TypeFunction* tf) {}
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/// Returns true if the return value is passed in a register
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virtual bool returnInArg(TypeFunction* tf) = 0;
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/// Returns true if the type is passed by value
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virtual bool passByVal(Type* t) = 0;
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/// Called to give ABI the chance to rewrite the types
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virtual void rewriteFunctionType(TypeFunction* t) = 0;
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/// Called if resolution of new function type is done
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virtual void doneWithFunctionType() {}
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};
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#endif
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