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Some calling convention work for x86-64: - Implement x86-64 extern(C), hopefully correctly. - Tried to be a bit smarter about extern(D) while I was there. Interestingly, this code seems to be generating more efficient code than gcc and llvm-gcc in some edge cases, like returning a `{ [7 x i8] }` loaded from a stack slot from an extern(C) function. (gcc generates 7 1-byte loads, while this code generates a 4-byte, a 2-byte and a 1-byte load) I also added some changes to make sure structs being returned from functions or passed in as parameters are stored in memory where the rest of the backend seems to expect them to be. These should be removed when support for first-class aggregates improves.
author Frits van Bommel <fvbommel wxs.nl>
date Fri, 06 Mar 2009 16:00:47 +0100
parents 340acf1535d0
children 79758fd2f48a
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#ifndef LLVMC_GEN_ARRAYS_H
#define LLVMC_GEN_ARRAYS_H

struct DSliceValue;

const llvm::StructType* DtoArrayType(Type* arrayTy);
const llvm::StructType* DtoArrayType(const LLType* elemTy);
const llvm::ArrayType* DtoStaticArrayType(Type* sarrayTy);

LLConstant* DtoConstArrayInitializer(ArrayInitializer* si);
LLConstant* DtoConstSlice(LLConstant* dim, LLConstant* ptr);

void DtoArrayCopySlices(DSliceValue* dst, DSliceValue* src);
void DtoArrayCopyToSlice(DSliceValue* dst, DValue* src);

void DtoArrayInit(Loc& loc, DValue* array, DValue* value);
void DtoArrayAssign(LLValue* l, LLValue* r);
void DtoSetArray(LLValue* arr, LLValue* dim, LLValue* ptr);
void DtoSetArrayToNull(LLValue* v);

DSliceValue* DtoNewDynArray(Loc& loc, Type* arrayType, DValue* dim, bool defaultInit=true);
DSliceValue* DtoNewMulDimDynArray(Loc& loc, Type* arrayType, DValue** dims, size_t ndims, bool defaultInit=true);
DSliceValue* DtoResizeDynArray(Type* arrayType, DValue* array, DValue* newdim);

DSliceValue* DtoCatAssignElement(DValue* arr, Expression* exp);
DSliceValue* DtoCatAssignArray(DValue* arr, Expression* exp);
DSliceValue* DtoCatArrays(Type* type, Expression* e1, Expression* e2);
DSliceValue* DtoCatArrayElement(Type* type, Expression* exp1, Expression* exp2);

void DtoStaticArrayCopy(LLValue* dst, LLValue* src);

LLValue* DtoArrayEquals(Loc& loc, TOK op, DValue* l, DValue* r);
LLValue* DtoArrayCompare(Loc& loc, TOK op, DValue* l, DValue* r);

LLValue* DtoDynArrayIs(TOK op, DValue* l, DValue* r);

LLValue* DtoArrayCastLength(LLValue* len, const LLType* elemty, const LLType* newelemty);

LLValue* DtoArrayLen(DValue* v);
LLValue* DtoArrayPtr(DValue* v);

DValue* DtoCastArray(Loc& loc, DValue* val, Type* to);

// generates an array bounds check
void DtoArrayBoundsCheck(Loc& loc, DValue* arr, DValue* index, bool isslice);

#endif // LLVMC_GEN_ARRAYS_H