| /* LLVM LOCAL begin (ENTIRE FILE!) */ |
| /* Some target-specific hooks for gcc->llvm conversion |
| Copyright (C) 2007 Free Software Foundation, Inc. |
| Contributed by Anton Korobeynikov (asl@math.spbu.ru) |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it under |
| the terms of the GNU General Public License as published by the Free |
| Software Foundation; either version 2, or (at your option) any later |
| version. |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING. If not, write to the Free |
| Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| /* LLVM specific stuff for supporting calling convention output */ |
| #define TARGET_ADJUST_LLVM_CC(CC, type) \ |
| { \ |
| tree type_attributes = TYPE_ATTRIBUTES (type); \ |
| if (lookup_attribute ("stdcall", type_attributes)) { \ |
| CC = CallingConv::X86_StdCall; \ |
| } else if (lookup_attribute("fastcall", type_attributes)) { \ |
| CC = CallingConv::X86_FastCall; \ |
| } else if (!TARGET_64BIT && \ |
| lookup_attribute("sseregparm", type_attributes)){\ |
| CC = CallingConv::X86_SSECall; \ |
| } \ |
| } |
| |
| /* LLVM specific stuff for converting gcc's `regparm` attribute to LLVM's |
| `inreg` parameter attribute */ |
| #define LLVM_TARGET_ENABLE_REGPARM |
| |
| extern int ix86_regparm; |
| |
| #define LLVM_TARGET_INIT_REGPARM(local_regparm, local_fp_regparm, type) \ |
| { \ |
| tree attr; \ |
| local_regparm = ix86_regparm; \ |
| local_fp_regparm = TARGET_SSEREGPARM ? 3 : 0; \ |
| attr = lookup_attribute ("regparm", \ |
| TYPE_ATTRIBUTES (type)); \ |
| if (attr) { \ |
| local_regparm = TREE_INT_CST_LOW (TREE_VALUE \ |
| (TREE_VALUE (attr))); \ |
| } \ |
| attr = lookup_attribute("sseregparm", \ |
| TYPE_ATTRIBUTES (type)); \ |
| if (attr) \ |
| local_fp_regparm = 3; \ |
| } |
| |
| #define LLVM_ADJUST_REGPARM_ATTRIBUTE(Attribute, Type, Size, \ |
| local_regparm, \ |
| local_fp_regparm) \ |
| { \ |
| if (!TARGET_64BIT) { \ |
| if (TREE_CODE(Type) == REAL_TYPE && \ |
| (TYPE_PRECISION(Type)==32 || \ |
| TYPE_PRECISION(Type)==64)) { \ |
| local_fp_regparm -= 1; \ |
| if (local_fp_regparm >= 0) \ |
| Attribute |= ParamAttr::InReg; \ |
| else \ |
| local_fp_regparm = 0; \ |
| } else if (TREE_CODE(Type) == INTEGER_TYPE || \ |
| TREE_CODE(Type) == POINTER_TYPE) { \ |
| int words = \ |
| (Size + BITS_PER_WORD - 1) / BITS_PER_WORD; \ |
| local_regparm -= words; \ |
| if (local_regparm>=0) \ |
| Attribute |= ParamAttr::InReg; \ |
| else \ |
| local_regparm = 0; \ |
| } \ |
| } \ |
| } |
| |
| #ifdef LLVM_ABI_H |
| |
| /* Objects containing SSE vectors are 16 byte aligned, everything else 4. */ |
| extern "C" bool contains_128bit_aligned_vector_p(tree); |
| #define LLVM_BYVAL_ALIGNMENT(T) \ |
| (TARGET_64BIT ? 0 : \ |
| TARGET_SSE && contains_128bit_aligned_vector_p(T) ? 16 : 4) |
| |
| /* Structs containing a single data field plus zero-length fields are |
| considered as if they were the type of the data field. */ |
| #ifndef LLVM_SHOULD_RETURN_SELT_STRUCT_AS_SCALAR |
| #define LLVM_SHOULD_RETURN_SELT_STRUCT_AS_SCALAR(X) \ |
| isSingleElementStructOrArray(X, true, false) |
| #endif |
| |
| extern bool llvm_x86_should_pass_vector_in_integer_regs(tree); |
| |
| /* LLVM_SCALAR_TYPE_FOR_STRUCT_RETURN - Return LLVM Type if X can be |
| returned as a scalar, otherwise return NULL. */ |
| #define LLVM_SCALAR_TYPE_FOR_STRUCT_RETURN(X) \ |
| llvm_x86_scalar_type_for_struct_return(X) |
| |
| extern const Type *llvm_x86_scalar_type_for_struct_return(tree type); |
| |
| /* LLVM_AGGR_TYPE_FOR_STRUCT_RETURN - Return LLVM Type if X can be |
| returned as an aggregate, otherwise return NULL. */ |
| #define LLVM_AGGR_TYPE_FOR_STRUCT_RETURN(X) \ |
| llvm_x86_aggr_type_for_struct_return(X) |
| |
| extern const Type *llvm_x86_aggr_type_for_struct_return(tree type); |
| |
| /* LLVM_EXTRACT_MULTIPLE_RETURN_VALUE - Extract multiple return value from |
| SRC and assign it to DEST. */ |
| #define LLVM_EXTRACT_MULTIPLE_RETURN_VALUE(Src,Dest,V,B) \ |
| llvm_x86_extract_multiple_return_value((Src),(Dest),(V),(B)) |
| |
| extern void llvm_x86_extract_multiple_return_value(Value *Src, Value *Dest, |
| bool isVolatile, |
| IRBuilder &B); |
| |
| /* Vectors which are not MMX nor SSE should be passed as integers. */ |
| #define LLVM_SHOULD_PASS_VECTOR_IN_INTEGER_REGS(X) \ |
| llvm_x86_should_pass_vector_in_integer_regs((X)) |
| |
| extern tree llvm_x86_should_return_vector_as_scalar(tree, bool); |
| |
| /* The MMX vector v1i64 is returned in EAX and EDX on Darwin. Communicate |
| this by returning i64 here. Likewise, (generic) vectors such as v2i16 |
| are returned in EAX. */ |
| #define LLVM_SHOULD_RETURN_VECTOR_AS_SCALAR(X,isBuiltin)\ |
| llvm_x86_should_return_vector_as_scalar((X), (isBuiltin)) |
| |
| extern bool llvm_x86_should_return_vector_as_shadow(tree, bool); |
| |
| /* MMX vectors v2i32, v4i16, v8i8, v2f32 are returned using sret on Darwin |
| 32-bit. Vectors bigger than 128 are returned using sret. */ |
| #define LLVM_SHOULD_RETURN_VECTOR_AS_SHADOW(X,isBuiltin)\ |
| llvm_x86_should_return_vector_as_shadow((X),(isBuiltin)) |
| |
| extern bool |
| llvm_x86_should_not_return_complex_in_memory(tree type); |
| |
| /* LLVM_SHOULD_NOT_RETURN_COMPLEX_IN_MEMORY - A hook to allow |
| special _Complex handling. Return true if X should be returned using |
| multiple value return instruction. */ |
| #define LLVM_SHOULD_NOT_RETURN_COMPLEX_IN_MEMORY(X) \ |
| llvm_x86_should_not_return_complex_in_memory((X)) |
| |
| extern bool llvm_x86_should_pass_aggregate_in_memory(tree, const Type *); |
| |
| #define LLVM_SHOULD_PASS_AGGREGATE_USING_BYVAL_ATTR(X, TY) \ |
| llvm_x86_should_pass_aggregate_in_memory(X, TY) |
| |
| |
| extern bool |
| llvm_x86_64_should_pass_aggregate_in_mixed_regs(tree, const Type *Ty, |
| std::vector<const Type*>&); |
| extern bool |
| llvm_x86_32_should_pass_aggregate_in_mixed_regs(tree, const Type *Ty, |
| std::vector<const Type*>&); |
| |
| #define LLVM_SHOULD_PASS_AGGREGATE_IN_MIXED_REGS(T, TY, E) \ |
| (TARGET_64BIT ? \ |
| llvm_x86_64_should_pass_aggregate_in_mixed_regs((T), (TY), (E)) : \ |
| llvm_x86_32_should_pass_aggregate_in_mixed_regs((T), (TY), (E))) |
| |
| extern |
| bool llvm_x86_64_aggregate_partially_passed_in_regs(std::vector<const Type*>&, |
| std::vector<const Type*>&); |
| |
| #define LLVM_AGGREGATE_PARTIALLY_PASSED_IN_REGS(E, SE) \ |
| (TARGET_64BIT ? \ |
| llvm_x86_64_aggregate_partially_passed_in_regs((E), (SE)) : \ |
| false) |
| |
| /* llvm_store_scalar_argument - Store scalar argument ARGVAL of type |
| LLVMTY at location LOC. */ |
| extern void llvm_x86_store_scalar_argument(Value *Loc, Value *ArgVal, |
| const llvm::Type *LLVMTy, |
| unsigned RealSize, |
| IRBuilder &Builder); |
| #define LLVM_STORE_SCALAR_ARGUMENT(LOC,ARG,TYPE,SIZE,BUILDER) \ |
| llvm_x86_store_scalar_argument((LOC),(ARG),(TYPE),(SIZE),(BUILDER)) |
| |
| |
| /* llvm_load_scalar_argument - Load value located at LOC. */ |
| extern Value *llvm_x86_load_scalar_argument(Value *L, |
| const llvm::Type *LLVMTy, |
| unsigned RealSize, |
| IRBuilder &Builder); |
| #define LLVM_LOAD_SCALAR_ARGUMENT(LOC,TY,SIZE,BUILDER) \ |
| llvm_x86_load_scalar_argument((LOC),(TY),(SIZE),(BUILDER)) |
| |
| #endif /* LLVM_ABI_H */ |
| |
| /* LLVM LOCAL end (ENTIRE FILE!) */ |
| |
