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Odin/src/llvm_backend.hpp
2020-03-08 17:44:08 +00:00

394 lines
12 KiB
C++

#include "llvm-c/Core.h"
#include "llvm-c/ExecutionEngine.h"
#include "llvm-c/Target.h"
#include "llvm-c/Analysis.h"
#include "llvm-c/Object.h"
#include "llvm-c/BitWriter.h"
#include "llvm-c/DebugInfo.h"
#include "llvm-c/Transforms/AggressiveInstCombine.h"
#include "llvm-c/Transforms/InstCombine.h"
#include "llvm-c/Transforms/IPO.h"
#include "llvm-c/Transforms/PassManagerBuilder.h"
#include "llvm-c/Transforms/Scalar.h"
#include "llvm-c/Transforms/Utils.h"
#include "llvm-c/Transforms/Vectorize.h"
struct lbProcedure;
struct lbValue {
LLVMValueRef value;
Type *type;
};
enum lbAddrKind {
lbAddr_Default,
lbAddr_Map,
lbAddr_BitField,
lbAddr_Context,
lbAddr_SoaVariable,
};
struct lbAddr {
lbAddrKind kind;
lbValue addr;
union {
struct {
lbValue key;
Type *type;
Type *result;
} map;
struct {
i32 value_index;
} bit_field;
struct {
Selection sel;
} ctx;
struct {
lbValue index;
Ast *index_expr;
} soa;
};
};
struct lbModule {
LLVMModuleRef mod;
LLVMContextRef ctx;
CheckerInfo *info;
gbMutex mutex;
Map<LLVMTypeRef> types; // Key: Type *
Map<lbValue> values; // Key: Entity *
Map<lbValue> members; // Key: String
Map<lbProcedure *> procedures; // Key: String
Map<Entity *> procedure_values; // Key: LLVMValueRef
Map<LLVMValueRef> const_strings; // Key: String
Map<lbProcedure *> anonymous_proc_lits; // Key: Ast *
lbAddr global_default_context;
u32 global_array_index;
u32 global_generated_index;
u32 nested_type_name_guid;
Array<lbProcedure *> procedures_to_generate;
Array<String> foreign_library_paths;
LLVMDIBuilderRef debug_builder;
LLVMMetadataRef debug_compile_unit;
Map<LLVMMetadataRef> debug_values; // Key: Pointer
};
struct lbGenerator {
lbModule module;
CheckerInfo *info;
Array<String> output_object_paths;
String output_base;
String output_name;
};
struct lbBlock {
LLVMBasicBlockRef block;
Scope *scope;
isize scope_index;
bool appended;
Array<lbBlock *> preds;
Array<lbBlock *> succs;
};
struct lbBranchBlocks {
Ast *label;
lbBlock *break_;
lbBlock *continue_;
};
struct lbContextData {
lbAddr ctx;
isize scope_index;
};
enum lbParamPasskind {
lbParamPass_Value, // Pass by value
lbParamPass_Pointer, // Pass as a pointer rather than by value
lbParamPass_Integer, // Pass as an integer of the same size
lbParamPass_ConstRef, // Pass as a pointer but the value is immutable
lbParamPass_BitCast, // Pass by value and bit cast to the correct type
lbParamPass_Tuple, // Pass across multiple parameters (System V AMD64, up to 2)
};
enum lbDeferExitKind {
lbDeferExit_Default,
lbDeferExit_Return,
lbDeferExit_Branch,
};
enum lbDeferKind {
lbDefer_Node,
lbDefer_Instr,
lbDefer_Proc,
};
struct lbDefer {
lbDeferKind kind;
isize scope_index;
isize context_stack_count;
lbBlock * block;
union {
Ast *stmt;
// NOTE(bill): 'instr' will be copied every time to create a new one
lbValue instr;
struct {
lbValue deferred;
Array<lbValue> result_as_args;
} proc;
};
};
struct lbTargetList {
lbTargetList *prev;
bool is_block;
lbBlock * break_;
lbBlock * continue_;
lbBlock * fallthrough_;
};
struct lbProcedure {
lbProcedure *parent;
Array<lbProcedure *> children;
Entity * entity;
lbModule * module;
String name;
Type * type;
Ast * type_expr;
Ast * body;
u64 tags;
ProcInlining inlining;
bool is_foreign;
bool is_export;
bool is_entry_point;
LLVMValueRef value;
LLVMBuilderRef builder;
bool is_done;
lbAddr return_ptr;
Array<lbValue> params;
Array<lbDefer> defer_stmts;
Array<lbBlock *> blocks;
Array<lbBranchBlocks> branch_blocks;
Scope * curr_scope;
i32 scope_index;
lbBlock * decl_block;
lbBlock * entry_block;
lbBlock * curr_block;
lbTargetList * target_list;
Array<lbContextData> context_stack;
lbValue return_ptr_hint_value;
Ast * return_ptr_hint_ast;
bool return_ptr_hint_used;
};
bool lb_init_generator(lbGenerator *gen, Checker *c);
void lb_generate_module(lbGenerator *gen);
String lb_mangle_name(lbModule *m, Entity *e);
String lb_get_entity_name(lbModule *m, Entity *e, String name = {});
LLVMAttributeRef lb_create_enum_attribute(LLVMContextRef ctx, char const *name, u64 value);
void lb_add_proc_attribute_at_index(lbProcedure *p, isize index, char const *name, u64 value);
void lb_add_proc_attribute_at_index(lbProcedure *p, isize index, char const *name);
lbProcedure *lb_create_procedure(lbModule *module, Entity *entity);
void lb_end_procedure(lbProcedure *p);
LLVMTypeRef lb_type(lbModule *m, Type *type);
lbBlock *lb_create_block(lbProcedure *p, char const *name, bool append=false);
lbValue lb_const_nil(lbModule *m, Type *type);
lbValue lb_const_undef(lbModule *m, Type *type);
lbValue lb_const_value(lbModule *m, Type *type, ExactValue value);
lbValue lb_const_bool(lbModule *m, Type *type, bool value);
lbValue lb_const_int(lbModule *m, Type *type, u64 value);
lbAddr lb_addr(lbValue addr);
Type *lb_addr_type(lbAddr const &addr);
LLVMTypeRef lb_addr_lb_type(lbAddr const &addr);
void lb_addr_store(lbProcedure *p, lbAddr const &addr, lbValue value);
lbValue lb_addr_load(lbProcedure *p, lbAddr const &addr);
lbValue lb_emit_load(lbProcedure *p, lbValue v);
void lb_emit_store(lbProcedure *p, lbValue ptr, lbValue value);
void lb_build_stmt(lbProcedure *p, Ast *stmt);
lbValue lb_build_expr(lbProcedure *p, Ast *expr);
lbAddr lb_build_addr(lbProcedure *p, Ast *expr);
void lb_build_stmt_list(lbProcedure *p, Array<Ast *> const &stmts);
lbValue lb_build_gep(lbProcedure *p, lbValue const &value, i32 index) ;
lbValue lb_emit_struct_ep(lbProcedure *p, lbValue s, i32 index);
lbValue lb_emit_struct_ev(lbProcedure *p, lbValue s, i32 index);
lbValue lb_emit_array_epi(lbProcedure *p, lbValue value, isize index);
lbValue lb_emit_array_ep(lbProcedure *p, lbValue s, lbValue index);
lbValue lb_emit_deep_field_gep(lbProcedure *p, lbValue e, Selection sel);
lbValue lb_emit_deep_field_ev(lbProcedure *p, lbValue e, Selection sel);
lbValue lb_emit_arith(lbProcedure *p, TokenKind op, lbValue lhs, lbValue rhs, Type *type);
lbValue lb_emit_byte_swap(lbProcedure *p, lbValue value, Type *platform_type);
void lb_emit_defer_stmts(lbProcedure *p, lbDeferExitKind kind, lbBlock *block);
lbValue lb_emit_transmute(lbProcedure *p, lbValue value, Type *t);
lbValue lb_emit_comp(lbProcedure *p, TokenKind op_kind, lbValue left, lbValue right);
lbValue lb_emit_call(lbProcedure *p, lbValue value, Array<lbValue> const &args, ProcInlining inlining = ProcInlining_none, bool use_return_ptr_hint = false);
lbValue lb_emit_conv(lbProcedure *p, lbValue value, Type *t);
lbValue lb_emit_comp_against_nil(lbProcedure *p, TokenKind op_kind, lbValue x);
void lb_emit_jump(lbProcedure *p, lbBlock *target_block);
void lb_emit_if(lbProcedure *p, lbValue cond, lbBlock *true_block, lbBlock *false_block);
void lb_start_block(lbProcedure *p, lbBlock *b);
lbValue lb_build_call_expr(lbProcedure *p, Ast *expr);
lbAddr lb_find_or_generate_context_ptr(lbProcedure *p);
void lb_push_context_onto_stack(lbProcedure *p, lbAddr ctx);
lbAddr lb_add_global_generated(lbModule *m, Type *type, lbValue value={});
lbAddr lb_add_local(lbProcedure *p, Type *type, Entity *e=nullptr, bool zero_init=true, i32 param_index=0);
lbValue lb_typeid(lbModule *m, Type *type, Type *typeid_type=t_typeid);
lbValue lb_address_from_load_or_generate_local(lbProcedure *p, lbValue value);
lbDefer lb_add_defer_node(lbProcedure *p, isize scope_index, Ast *stmt);
lbAddr lb_add_local_generated(lbProcedure *p, Type *type, bool zero_init);
lbValue lb_emit_runtime_call(lbProcedure *p, char const *c_name, Array<lbValue> const &args);
lbValue lb_emit_ptr_offset(lbProcedure *p, lbValue ptr, lbValue index);
lbValue lb_string_elem(lbProcedure *p, lbValue string);
lbValue lb_string_len(lbProcedure *p, lbValue string);
lbValue lb_cstring_len(lbProcedure *p, lbValue value);
lbValue lb_array_elem(lbProcedure *p, lbValue array_ptr);
lbValue lb_slice_elem(lbProcedure *p, lbValue slice);
lbValue lb_slice_len(lbProcedure *p, lbValue slice);
lbValue lb_dynamic_array_elem(lbProcedure *p, lbValue da);
lbValue lb_dynamic_array_len(lbProcedure *p, lbValue da);
lbValue lb_dynamic_array_cap(lbProcedure *p, lbValue da);
lbValue lb_dynamic_array_allocator(lbProcedure *p, lbValue da);
lbValue lb_map_entries(lbProcedure *p, lbValue value);
lbValue lb_map_entries_ptr(lbProcedure *p, lbValue value);
lbValue lb_map_len(lbProcedure *p, lbValue value);
lbValue lb_map_cap(lbProcedure *p, lbValue value);
lbValue lb_soa_struct_len(lbProcedure *p, lbValue value);
void lb_emit_increment(lbProcedure *p, lbValue addr);
lbValue lb_type_info(lbModule *m, Type *type);
bool lb_is_const(lbValue value);
bool lb_is_const_nil(lbValue value);
String lb_get_const_string(lbModule *m, lbValue value);
lbValue lb_generate_array(lbModule *m, Type *elem_type, i64 count, String prefix, i64 id);
lbValue lb_gen_map_header(lbProcedure *p, lbValue map_val_ptr, Type *map_type);
lbValue lb_gen_map_key(lbProcedure *p, lbValue key, Type *key_type);
void lb_insert_dynamic_map_key_and_value(lbProcedure *p, lbAddr addr, Type *map_type, lbValue map_key, lbValue map_value);
#define LB_STARTUP_RUNTIME_PROC_NAME "__$startup_runtime"
#define LB_TYPE_INFO_DATA_NAME "__$type_info_data"
#define LB_TYPE_INFO_TYPES_NAME "__$type_info_types_data"
#define LB_TYPE_INFO_NAMES_NAME "__$type_info_names_data"
#define LB_TYPE_INFO_OFFSETS_NAME "__$type_info_offsets_data"
#define LB_TYPE_INFO_USINGS_NAME "__$type_info_usings_data"
#define LB_TYPE_INFO_TAGS_NAME "__$type_info_tags_data"
enum lbCallingConventionKind {
lbCallingConvention_C = 0,
lbCallingConvention_Fast = 8,
lbCallingConvention_Cold = 9,
lbCallingConvention_GHC = 10,
lbCallingConvention_HiPE = 11,
lbCallingConvention_WebKit_JS = 12,
lbCallingConvention_AnyReg = 13,
lbCallingConvention_PreserveMost = 14,
lbCallingConvention_PreserveAll = 15,
lbCallingConvention_Swift = 16,
lbCallingConvention_CXX_FAST_TLS = 17,
lbCallingConvention_FirstTargetCC = 64,
lbCallingConvention_X86_StdCall = 64,
lbCallingConvention_X86_FastCall = 65,
lbCallingConvention_ARM_APCS = 66,
lbCallingConvention_ARM_AAPCS = 67,
lbCallingConvention_ARM_AAPCS_VFP = 68,
lbCallingConvention_MSP430_INTR = 69,
lbCallingConvention_X86_ThisCall = 70,
lbCallingConvention_PTX_Kernel = 71,
lbCallingConvention_PTX_Device = 72,
lbCallingConvention_SPIR_FUNC = 75,
lbCallingConvention_SPIR_KERNEL = 76,
lbCallingConvention_Intel_OCL_BI = 77,
lbCallingConvention_X86_64_SysV = 78,
lbCallingConvention_Win64 = 79,
lbCallingConvention_X86_VectorCall = 80,
lbCallingConvention_HHVM = 81,
lbCallingConvention_HHVM_C = 82,
lbCallingConvention_X86_INTR = 83,
lbCallingConvention_AVR_INTR = 84,
lbCallingConvention_AVR_SIGNAL = 85,
lbCallingConvention_AVR_BUILTIN = 86,
lbCallingConvention_AMDGPU_VS = 87,
lbCallingConvention_AMDGPU_GS = 88,
lbCallingConvention_AMDGPU_PS = 89,
lbCallingConvention_AMDGPU_CS = 90,
lbCallingConvention_AMDGPU_KERNEL = 91,
lbCallingConvention_X86_RegCall = 92,
lbCallingConvention_AMDGPU_HS = 93,
lbCallingConvention_MSP430_BUILTIN = 94,
lbCallingConvention_AMDGPU_LS = 95,
lbCallingConvention_AMDGPU_ES = 96,
lbCallingConvention_AArch64_VectorCall = 97,
lbCallingConvention_MaxID = 1023,
};
lbCallingConventionKind const lb_calling_convention_map[ProcCC_MAX] = {
lbCallingConvention_C, // ProcCC_Invalid,
lbCallingConvention_C, // ProcCC_Odin,
lbCallingConvention_C, // ProcCC_Contextless,
lbCallingConvention_C, // ProcCC_CDecl,
lbCallingConvention_X86_StdCall, // ProcCC_StdCall,
lbCallingConvention_X86_FastCall, // ProcCC_FastCall,
lbCallingConvention_C, // ProcCC_None,
};