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ir_main.c
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/*
* IR - Lightweight JIT Compilation Framework
* (IR CLI driver)
* Copyright (C) 2022 Zend by Perforce.
* Authors: Dmitry Stogov <[email protected]>
*/
#include "ir.h"
#include "ir_private.h" // TODO: move this together with loader
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
# include <windows.h>
#elif defined(__linux__) || defined(__sun)
# include <alloca.h>
#endif
#ifndef _WIN32
# include <sys/time.h>
static double ir_time(void)
{
struct timeval tv;
gettimeofday(&tv, NULL);
return (double)tv.tv_sec + (double)tv.tv_usec / 1000000.0;
}
#else
static double ir_time(void)
{
FILETIME filetime;
GetSystemTimeAsFileTime(&filetime);
return (double)((((uint64_t)filetime.dwHighDateTime << 32) | (uint64_t)filetime.dwLowDateTime)/10) /
1000000.0;
}
#endif
static double ir_atexit_start = 0.0;
static void ir_atexit(void)
{
if (ir_atexit_start) {
double t = ir_time();
fprintf(stderr, "\nexecution time = %0.6f\n", t - ir_atexit_start);
ir_atexit_start = 0.0;
}
}
static void help(const char *cmd)
{
printf(
#if HAVE_LLVM
"Usage: %s [options] [--llvm-bitcode|--llvm-asm] input-file...\n"
#else
"Usage: %s [options] input-file...\n"
#endif
"Options:\n"
" -O[012] - optimization level (default: 2)\n"
" -f[no-]inline - disable/enable function inlining\n"
" -fno-mem2ssa - disable mem2ssa\n"
" -S - dump final target assembler code\n"
" --run ... - run the main() function of generated code\n"
" (the remaining arguments are passed to main)\n"
#if defined(IR_TARGET_X86) || defined(IR_TARGET_X64)
" -mavx - use AVX instruction set\n"
" -mno-bmi1 - disable BMI1 instruction set\n"
#endif
" -muse-fp - use base frame pointer register\n"
" --emit-c [file-name] - convert to C source\n"
" --emit-llvm [file-name] - convert to LLVM\n"
" --save [file-name] - save IR\n"
" --save-cfg - save IR\n"
" --save-cfg-map - save IR\n"
" --save-rules - save IR\n"
" --save-regs - save IR\n"
" --save-use_lists - save IR\n"
" --dot [file-name] - dump IR graph\n"
" --dump [file-name] - dump IR table\n"
" --dump-after-load - dump IR after load and local optimization\n"
" --dump-after-use-lists - dump IR after USE-LISTS construction\n"
" --dump-after-mem2ssa - dump IR after MEM2SSA pass\n"
" --dump-after-sccp - dump IR after SCCP optimization pass\n"
" --dump-after-cfg - dump IR after CFG construction\n"
" --dump-after-dom - dump IR after Dominators tree construction\n"
" --dump-after-loop - dump IR after Loop detection\n"
" --dump-after-gcm - dump IR after GCM optimization pass\n"
" --dump-after-schedule - dump IR after SCHEDULE pass\n"
" --dump-after-live-ranges - dump IR after live ranges identification\n"
" --dump-after-coalescing - dump IR after live ranges coalescing\n"
" --dump-after-regalloc - dump IR after register allocation\n"
" --dump-after-all - dump IR after each pass\n"
" --dump-final - dump IR after all pass\n"
" --dump-size - dump generated code size\n"
" --dump-time - dump compilation and execution time\n"
" --dump-use-lists - dump def->use lists\n"
" --dump-cfg - dump CFG (Control Flow Graph)\n"
" --dump-cfg-map - dump CFG map (instruction to BB number)\n"
" --dump-live-ranges - dump live ranges\n"
#ifdef IR_DEBUG
" --debug-sccp - debug SCCP optimization pass\n"
" --debug-gcm - debug GCM optimization pass\n"
" --debug-gcm-split - debug floating node splitting\n"
" --debug-schedule - debug SCHEDULE optimization pass\n"
" --debug-ra - debug register allocator\n"
" --debug-regset <bit-mask> - restrict available register set\n"
" --debug-bb-schedule - debug BB PLCEMENT optimization pass\n"
#endif
" --disable-gdb - disable JIT code registration in GDB\n"
" --target - print JIT target\n"
" --version\n"
" --help\n",
cmd);
}
#define IR_DUMP_SAVE (1<<0)
#define IR_DUMP_DUMP (1<<1)
#define IR_DUMP_DOT (1<<2)
#define IR_DUMP_USE_LISTS (1<<3)
#define IR_DUMP_CFG (1<<4)
#define IR_DUMP_CFG_MAP (1<<5)
#define IR_DUMP_LIVE_RANGES (1<<6)
#define IR_DUMP_CODEGEN (1<<7)
#define IR_DUMP_AFTER_LOAD (1<<16)
#define IR_DUMP_AFTER_USE_LISTS (1<<17)
#define IR_DUMP_AFTER_MEM2SSA (1<<18)
#define IR_DUMP_AFTER_SCCP (1<<19)
#define IR_DUMP_AFTER_CFG (1<<20)
#define IR_DUMP_AFTER_DOM (1<<21)
#define IR_DUMP_AFTER_LOOP (1<<22)
#define IR_DUMP_AFTER_GCM (1<<23)
#define IR_DUMP_AFTER_SCHEDULE (1<<24)
#define IR_DUMP_AFTER_LIVE_RANGES (1<<25)
#define IR_DUMP_AFTER_COALESCING (1<<26)
#define IR_DUMP_AFTER_REGALLOC (1<<27)
#define IR_DUMP_AFTER_ALL (1<<29)
#define IR_DUMP_FINAL (1<<30)
#define IR_UNKNOWN_SIZE 1
static int _save(ir_ctx *ctx, uint32_t save_flags, uint32_t dump, uint32_t pass, FILE *f, const char *func_name)
{
char fn[4096];
bool close = 0;
if (!f) {
if (dump & IR_DUMP_AFTER_ALL) {
if (pass == IR_DUMP_AFTER_LOAD) {
snprintf(fn, sizeof(fn)-1, "01-load-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_USE_LISTS) {
snprintf(fn, sizeof(fn)-1, "02-use-lists-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_MEM2SSA) {
snprintf(fn, sizeof(fn)-1, "03-mem2ssa-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_SCCP) {
snprintf(fn, sizeof(fn)-1, "04-sccp-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_CFG) {
snprintf(fn, sizeof(fn)-1, "05-cfg-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_DOM) {
snprintf(fn, sizeof(fn)-1, "06-dom-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_LOOP) {
snprintf(fn, sizeof(fn)-1, "07-loop-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_GCM) {
snprintf(fn, sizeof(fn)-1, "08-gcm-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_SCHEDULE) {
snprintf(fn, sizeof(fn)-1, "09-schedule-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_LIVE_RANGES) {
snprintf(fn, sizeof(fn)-1, "10-live-ranges-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_COALESCING) {
snprintf(fn, sizeof(fn)-1, "11-coalescing-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_REGALLOC) {
snprintf(fn, sizeof(fn)-1, "12-regalloc-%s.ir", func_name);
} else if (pass == IR_DUMP_FINAL) {
if (dump & IR_DUMP_CODEGEN) {
snprintf(fn, sizeof(fn)-1, "13-codegen-%s.ir", func_name);
} else {
snprintf(fn, sizeof(fn)-1, "13-final-%s.ir", func_name);
}
} else {
f = stderr; // TODO:
}
} else {
snprintf(fn, sizeof(fn)-1, "%s.ir", func_name);
}
f = fopen(fn, "w+");
if (!f) {
fprintf(stderr, "ERROR: Cannot create file '%s'\n", fn);
return 0;
}
close = 1;
}
if (pass == IR_DUMP_FINAL && (dump & IR_DUMP_CODEGEN)) {
ir_dump_codegen(ctx, f);
} else if (dump & IR_DUMP_SAVE) {
ir_save(ctx, save_flags, f);
}
if (dump & IR_DUMP_DUMP) {
ir_dump(ctx, f);
}
if (dump & IR_DUMP_DOT) {
ir_dump_dot(ctx, func_name, f);
}
if (dump & IR_DUMP_USE_LISTS) {
ir_dump_use_lists(ctx, f);
}
if (dump & IR_DUMP_CFG) {
ir_dump_cfg(ctx, f);
}
if (dump & IR_DUMP_CFG_MAP) {
ir_dump_cfg_map(ctx, f);
}
if (dump & IR_DUMP_LIVE_RANGES) {
ir_dump_live_ranges(ctx, f);
}
if (close) {
fclose(f);
}
return 1;
}
int ir_compile_func(ir_ctx *ctx, int opt_level, uint32_t save_flags, uint32_t dump, FILE *dump_file, const char *func_name)
{
if ((dump & (IR_DUMP_AFTER_LOAD|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_LOAD, dump_file, func_name)) {
return 0;
}
if (opt_level > 0 || (ctx->flags & (IR_GEN_NATIVE|IR_GEN_CODE))) {
ir_build_def_use_lists(ctx);
if ((dump & (IR_DUMP_AFTER_USE_LISTS|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_USE_LISTS, dump_file, func_name)) {
return 0;
}
}
#ifdef IR_DEBUG
ir_check(ctx);
#endif
if (opt_level > 0 && (ctx->flags & IR_OPT_MEM2SSA)) {
ir_build_cfg(ctx);
if ((dump & (IR_DUMP_AFTER_CFG|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_CFG, dump_file, func_name)) {
return 0;
}
#ifdef IR_DEBUG
ir_check(ctx);
#endif
ir_build_dominators_tree(ctx);
if ((dump & (IR_DUMP_AFTER_DOM|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_DOM, dump_file, func_name)) {
return 0;
}
ir_mem2ssa(ctx);
ir_reset_cfg(ctx);
if ((dump & (IR_DUMP_AFTER_MEM2SSA|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_MEM2SSA, dump_file, func_name)) {
return 0;
}
#ifdef IR_DEBUG
ir_check(ctx);
#endif
}
/* Global Optimization */
if (opt_level > 1) {
ir_sccp(ctx);
if ((dump & (IR_DUMP_AFTER_SCCP|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_SCCP, dump_file, func_name)) {
return 0;
}
#ifdef IR_DEBUG
ir_check(ctx);
#endif
}
if ((opt_level > 0 || (ctx->flags & (IR_GEN_NATIVE|IR_GEN_CODE))) && !ctx->cfg_blocks) {
ir_build_cfg(ctx);
if ((dump & (IR_DUMP_AFTER_CFG|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_CFG, dump_file, func_name)) {
return 0;
}
#ifdef IR_DEBUG
ir_check(ctx);
#endif
if (opt_level > 0) {
ir_build_dominators_tree(ctx);
if ((dump & (IR_DUMP_AFTER_DOM|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_DOM, dump_file, func_name)) {
return 0;
}
}
}
/* Schedule */
if (opt_level > 0) {
ir_find_loops(ctx);
if ((dump & (IR_DUMP_AFTER_LOOP|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_LOOP, dump_file, func_name)) {
return 0;
}
ir_gcm(ctx);
if ((dump & (IR_DUMP_AFTER_GCM|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_GCM, dump_file, func_name)) {
return 0;
}
#ifdef IR_DEBUG
ir_check(ctx);
#endif
ir_schedule(ctx);
if ((dump & (IR_DUMP_AFTER_SCHEDULE|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_SCHEDULE, dump_file, func_name)) {
return 0;
}
#ifdef IR_DEBUG
ir_check(ctx);
#endif
}
if (ctx->flags & IR_GEN_NATIVE) {
ir_match(ctx);
}
if (opt_level > 0) {
ir_assign_virtual_registers(ctx);
ir_compute_live_ranges(ctx);
if ((dump & (IR_DUMP_AFTER_LIVE_RANGES|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_LIVE_RANGES, dump_file, func_name)) {
return 0;
}
ir_coalesce(ctx);
if ((dump & (IR_DUMP_AFTER_COALESCING|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_COALESCING, dump_file, func_name)) {
return 0;
}
if (ctx->flags & IR_GEN_NATIVE) {
ir_reg_alloc(ctx);
if ((dump & (IR_DUMP_AFTER_REGALLOC|IR_DUMP_AFTER_ALL))
&& !_save(ctx, save_flags, dump, IR_DUMP_AFTER_REGALLOC, dump_file, func_name)) {
return 0;
}
}
ir_schedule_blocks(ctx);
} else if (ctx->flags & (IR_GEN_NATIVE|IR_GEN_CODE)) {
ir_assign_virtual_registers(ctx);
ir_compute_dessa_moves(ctx);
}
if ((dump & (IR_DUMP_FINAL|IR_DUMP_AFTER_ALL|IR_DUMP_CODEGEN))
&& !_save(ctx, save_flags, dump, IR_DUMP_FINAL, dump_file, func_name)) {
return 0;
}
#ifdef IR_DEBUG
ir_check(ctx);
#endif
return 1;
}
typedef struct _ir_sym {
void *addr;
void *thunk_addr;
} ir_sym;
typedef struct _ir_reloc {
void *addr;
ir_ref sym;
} ir_reloc;
typedef struct _ir_main_loader {
ir_loader loader;
int opt_level;
uint32_t mflags;
uint64_t debug_regset;
uint32_t save_flags;
uint32_t dump;
bool dump_asm;
bool dump_size;
bool run;
bool gdb;
size_t size;
void *main;
FILE *dump_file;
FILE *c_file;
FILE *llvm_file;
ir_strtab symtab;
ir_sym *sym;
ir_reloc *reloc;
ir_ref sym_count;
ir_ref reloc_count;
void *data_start;
size_t data_pos;
ir_code_buffer code_buffer;
} ir_main_loader;
static void ir_loader_free_symbols(ir_main_loader *l)
{
ir_strtab_free(&l->symtab);
if (l->sym) {
ir_mem_free(l->sym);
}
if (l->reloc) {
ir_mem_free(l->reloc);
}
}
static void ir_loader_add_reloc(ir_main_loader *l, const char *name, void *addr)
{
ir_reloc *r;
ir_ref val = ir_strtab_count(&l->symtab) + 1;
ir_ref sym = ir_strtab_lookup(&l->symtab, name, strlen(name), val);
if (sym == val) {
if (val >= l->sym_count) {
l->sym_count += 16;
l->sym = ir_mem_realloc(l->sym, sizeof(ir_sym) * l->sym_count);
}
l->sym[val].addr = NULL;
l->sym[val].thunk_addr = NULL;
}
l->reloc = ir_mem_realloc(l->reloc, sizeof(ir_reloc) * (l->reloc_count + 1));
r = &l->reloc[l->reloc_count];
r->addr = addr;
r->sym = sym;
l->reloc_count++;
}
static bool ir_loader_fix_relocs(ir_main_loader *l)
{
bool ret = 1;
ir_ref n = l->reloc_count;
if (n > 0) {
ir_reloc *r = l->reloc;
ir_sym *s;
ir_mem_unprotect(l->code_buffer.start, (char*)l->code_buffer.end - (char*)l->code_buffer.start);
for (; n > 0; r++, n--) {
IR_ASSERT(r->sym > 0 && r->sym < l->sym_count);
s = &l->sym[r->sym];
if (s->addr) {
*(void**)r->addr = (void*)((uintptr_t)s->addr + *(uintptr_t*)r->addr);
#if 0
uintptr_t addr;
memcpy(&addr, r->addr, sizeof(void*));
addr += (uintptr_t)s->addr;
memcpy(r->addr, &addr, sizeof(void*));
#endif
} else {
fprintf(stderr, "Undefined symbol: %s\n", ir_strtab_str(&l->symtab, r->sym - 1));
ret = 0;
break;
}
}
ir_mem_protect(l->code_buffer.start, (char*)l->code_buffer.end - (char*)l->code_buffer.start);
}
if (ret) {
/* Check for unresolved external symbols */
n = ir_strtab_count(&l->symtab);
if (n > 0) {
ir_sym *s = l->sym + 1;
ir_ref j;
for (j = 1; j < n; s++, j++) {
if (!s->addr && s->thunk_addr) {
fprintf(stderr, "Undefined symbol: %s\n", ir_strtab_str(&l->symtab, j - 1));
ret = 0;
}
}
}
}
return ret;
}
static bool ir_loader_add_sym(ir_loader *loader, const char *name, void *addr)
{
ir_main_loader *l = (ir_main_loader*)loader;
uint32_t len = (uint32_t)strlen(name);
ir_ref val = ir_strtab_count(&l->symtab) + 1;
ir_ref old_val = ir_strtab_lookup(&l->symtab, name, len, val);
if (old_val != val) {
if (addr && !l->sym[old_val].addr) {
/* Update forward declaration */
l->sym[old_val].addr = addr;
if (l->sym[old_val].thunk_addr) {
// TODO: Fix thunk or relocation ???
if (l->code_buffer.start) {
ir_mem_unprotect(l->code_buffer.start, (char*)l->code_buffer.end - (char*)l->code_buffer.start);
}
ir_fix_thunk(l->sym[old_val].thunk_addr, addr);
if (l->code_buffer.start) {
ir_mem_protect(l->code_buffer.start, (char*)l->code_buffer.end - (char*)l->code_buffer.start);
}
}
return 1;
}
return 0;
}
if (val >= l->sym_count) {
l->sym_count += 16;
l->sym = ir_mem_realloc(l->sym, sizeof(ir_sym) * l->sym_count);
}
l->sym[val].addr = addr;
l->sym[val].thunk_addr = NULL;
return 1;
}
static bool ir_loader_has_sym(ir_loader *loader, const char *name)
{
ir_main_loader *l = (ir_main_loader*)loader;
uint32_t len = (uint32_t)strlen(name);
ir_ref val = ir_strtab_find(&l->symtab, name, len);
return val != 0;
}
static void* ir_loader_resolve_sym_name(ir_loader *loader, const char *name, bool add_thunk)
{
ir_main_loader *l = (ir_main_loader*)loader;
uint32_t len = (uint32_t)strlen(name);
ir_ref val = ir_strtab_find(&l->symtab, name, len);
void *addr;
if (val) {
if (l->sym[val].addr) {
return l->sym[val].addr;
}
if (!l->sym[val].thunk_addr && add_thunk) {
/* Undefined declaration */
// TODO: Add thunk or relocation ???
size_t size;
l->sym[val].thunk_addr = ir_emit_thunk(&l->code_buffer, NULL, &size);
ir_disasm_add_symbol(name, (uint64_t)(uintptr_t)l->sym[val].thunk_addr, size);
}
return l->sym[val].thunk_addr;
}
addr = ir_resolve_sym_name(name);
if (addr) {
ir_loader_add_sym(loader, name, addr); /* cache */
}
return addr;
}
static bool ir_loader_external_sym_dcl(ir_loader *loader, const char *name, uint32_t flags)
{
ir_main_loader *l = (ir_main_loader*) loader;
if (ir_loader_has_sym(loader, name)) {
return 1;
}
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
fprintf(l->dump_file, "extern %s %s;\n", (flags & IR_CONST) ? "const" : "var", name);
}
if (l->c_file) {
ir_emit_c_sym_decl(name, flags | IR_EXTERN, l->c_file);
}
if (l->llvm_file) {
ir_emit_llvm_sym_decl(name, flags | IR_EXTERN, l->llvm_file);
}
if (l->dump_asm || l->dump_size || l->run) {
void *addr = ir_loader_resolve_sym_name(loader, name, 0);
if (!addr) {
return 0;
}
if (l->dump_asm) {
ir_disasm_add_symbol(name, (uintptr_t)addr, IR_UNKNOWN_SIZE);
}
} else {
ir_loader_add_sym(loader, name, NULL);
}
return 1;
}
static void ir_dump_func_dcl(const char *name, uint32_t flags, ir_type ret_type, uint32_t params_count, const uint8_t *param_types, FILE *f)
{
if (flags & IR_EXTERN) {
fprintf(f, "extern ");
} else if (flags & IR_STATIC) {
fprintf(f, "static ");
}
fprintf(f, "func %s(", name);
if (params_count) {
const uint8_t *p = param_types;
fprintf(f, "%s", ir_type_cname[*p]);
p++;
while (--params_count) {
fprintf(f, ", %s", ir_type_cname[*p]);
p++;
}
if (flags & IR_VARARG_FUNC) {
fprintf(f, ", ...");
}
} else if (flags & IR_VARARG_FUNC) {
fprintf(f, "...");
}
fprintf(f, "): %s", ir_type_cname[ret_type]);
if (flags & IR_FASTCALL_FUNC) {
fprintf(f, " __fastcall");
} else if (flags & IR_BUILTIN_FUNC) {
fprintf(f, " __builtin");
}
fprintf(f, ";\n");
}
static bool ir_loader_external_func_dcl(ir_loader *loader, const char *name, uint32_t flags,
ir_type ret_type, uint32_t params_count, const uint8_t *param_types)
{
ir_main_loader *l = (ir_main_loader*) loader;
if (ir_loader_has_sym(loader, name)) {
return 1;
}
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
ir_dump_func_dcl(name, flags | IR_EXTERN, ret_type, params_count, param_types, l->dump_file);
}
if (l->c_file) {
ir_emit_c_func_decl(name, flags | IR_EXTERN, ret_type, params_count, param_types, l->c_file);
}
if (l->llvm_file) {
ir_emit_llvm_func_decl(name, flags | IR_EXTERN, ret_type, params_count, param_types, l->llvm_file);
}
if (l->dump_asm || l->dump_size || l->run) {
void *addr = ir_loader_resolve_sym_name(loader, name, 0);
if (!addr) {
/* Unresolved external function */
ir_loader_add_sym(loader, name, NULL);
return 1;
}
if (l->dump_asm) {
ir_disasm_add_symbol(name, (uintptr_t)addr, IR_UNKNOWN_SIZE);
}
} else {
ir_loader_add_sym(loader, name, NULL);
}
return 1;
}
static bool ir_loader_forward_func_dcl(ir_loader *loader, const char *name, uint32_t flags,
ir_type ret_type, uint32_t params_count, const uint8_t *param_types)
{
ir_main_loader *l = (ir_main_loader*) loader;
if (ir_loader_has_sym(loader, name)) {
return 1;
}
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
ir_dump_func_dcl(name, flags, ret_type, params_count, param_types, l->dump_file);
}
if (l->c_file) {
ir_emit_c_func_decl(name, flags, ret_type, params_count, param_types, l->c_file);
}
ir_loader_add_sym(loader, name, NULL);
return 1;
}
static bool ir_loader_sym_dcl(ir_loader *loader, const char *name, uint32_t flags, size_t size)
{
ir_main_loader *l = (ir_main_loader*) loader;
l->data_start = NULL;
l->data_pos = 0;
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
if (flags & IR_STATIC) {
fprintf(l->dump_file, "static ");
}
fprintf(l->dump_file, "%s %s [%" PRIuPTR "]%s",
(flags & IR_CONST) ? "const" : "var", name, size,
(flags & IR_INITIALIZED) ? ((flags & IR_CONST_STRING) ? " = " : " = {\n") : ";\n");
}
if (l->c_file) {
ir_emit_c_sym_decl(name, flags, l->c_file);
}
if (l->llvm_file) {
ir_emit_llvm_sym_decl(name, flags, l->llvm_file);
}
if (l->dump_asm || l->dump_size || l->run) {
void *data;
if (flags & IR_CONST) {
data = l->code_buffer.pos;
/* Data Alignment */
if (size > 8) {
data = (void*)IR_ALIGNED_SIZE(((size_t)(data)), 16);
} else if (size == 8) {
data = (void*)IR_ALIGNED_SIZE(((size_t)(data)), 8);
} else if (size >= 4) {
data = (void*)IR_ALIGNED_SIZE(((size_t)(data)), 4);
} else if (size >= 2) {
data = (void*)IR_ALIGNED_SIZE(((size_t)(data)), 2);
}
if (size > (size_t)((char*)l->code_buffer.end - (char*)data)) {
return 0;
}
l->code_buffer.pos = (char*)data + size;
ir_mem_unprotect(l->code_buffer.start, (char*)l->code_buffer.end - (char*)l->code_buffer.start);
} else {
data = ir_mem_malloc(size);
}
if (!ir_loader_add_sym(loader, name, data)) {
ir_mem_free(data);
return 0;
}
memset(data, 0, size);
if (flags & IR_INITIALIZED) {
l->data_start = data;
}
if (l->dump_asm) {
ir_disasm_add_symbol(name, (uintptr_t)data, size);
}
#ifndef _WIN32
if (l->gdb) {
ir_gdb_register(name, data, size, 0, 0);
}
#endif
} else {
ir_loader_add_sym(loader, name, NULL);
}
return 1;
}
static bool ir_loader_sym_data(ir_loader *loader, ir_type type, uint32_t count, const void *data)
{
ir_main_loader *l = (ir_main_loader*) loader;
size_t size = ir_type_size[type];
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
const void *p = data;
uint32_t i;
switch (size) {
case 1:
for (i = 0; i < count; i++) {
fprintf(l->dump_file, "\t%s 0x%02x,\n", ir_type_cname[type], (uint32_t)*(uint8_t*)p);
}
break;
case 2:
for (i = 0; i < count; i++) {
fprintf(l->dump_file, "\t%s 0x%04x,\n", ir_type_cname[type], (uint32_t)*(uint16_t*)p);
}
break;
case 4:
for (i = 0; i < count; i++) {
fprintf(l->dump_file, "\t%s 0x%08x,\n", ir_type_cname[type], *(uint32_t*)p);
}
break;
case 8:
for (i = 0; i < count; i++) {
fprintf(l->dump_file, "\t%s 0x%016" PRIx64 ",\n", ir_type_cname[type], *(uint64_t*)p);
}
break;
}
}
if (l->c_file) {
// TODO:
}
if (l->llvm_file) {
// TODO:
}
if (l->dump_asm || l->dump_size || l->run) {
IR_ASSERT(l->data_start);
if (count == 1) {
memcpy((char*)l->data_start + l->data_pos, data, size);
} else {
size_t pos = 0;
uint32_t i;
IR_ASSERT(count > 1);
for (i = 0; i < count; i++) {
memcpy((char*)l->data_start + l->data_pos + pos, data, size);
pos += size;
}
}
}
l->data_pos += size * count;
return 1;
}
static bool ir_loader_sym_data_str(ir_loader *loader, const char *str, size_t len)
{
ir_main_loader *l = (ir_main_loader*) loader;
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
fprintf(l->dump_file, "\"");
ir_print_escaped_str(str, len, l->dump_file);
fprintf(l->dump_file, "\"");
}
if (l->c_file) {
// TODO:
}
if (l->llvm_file) {
// TODO:
}
if (l->dump_asm || l->dump_size || l->run) {
IR_ASSERT(l->data_start);
memcpy((char*)l->data_start + l->data_pos, str, len);
}
l->data_pos += len;
return 1;
}
static bool ir_loader_sym_data_pad(ir_loader *loader, size_t offset)
{
ir_main_loader *l = (ir_main_loader*) loader;
size_t i;
IR_ASSERT(offset >= l->data_pos);
offset -= l->data_pos;
if (offset) {
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
for (i = 0; i < offset; i++) {
fprintf(l->dump_file, "\tuint8_t 0x00,\n");
}
}
if (l->c_file) {
// TODO:
}
if (l->llvm_file) {
// TODO:
}
if (l->dump_asm || l->dump_size || l->run) {
IR_ASSERT(l->data_start);
memset((char*)l->data_start + l->data_pos, 0, offset);
}
l->data_pos += offset;
}
return 1;
}
static bool ir_loader_sym_data_ref(ir_loader *loader, ir_op op, const char *ref, uintptr_t offset)
{
ir_main_loader *l = (ir_main_loader*) loader;
IR_ASSERT(op == IR_FUNC || op == IR_SYM);
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
if (!offset) {
fprintf(l->dump_file, "\t%s %s(%s),\n", ir_type_cname[IR_ADDR], op == IR_FUNC ? "func" : "sym", ref);
} else {
fprintf(l->dump_file, "\t%s %s(%s)+0x%" PRIxPTR ",\n", ir_type_cname[IR_ADDR], op == IR_FUNC ? "func" : "sym", ref, offset);
}
}
if (l->c_file) {
// TODO:
}
if (l->llvm_file) {
// TODO:
}
if (l->dump_asm || l->dump_size || l->run) {
void *data = (char*)l->data_start + l->data_pos;
void *addr = ir_loader_resolve_sym_name(loader, ref, 0);
if (!addr) {
ir_loader_add_reloc(l, ref, data);
}
IR_ASSERT(l->data_start);
addr = (void*)((uintptr_t)(addr) + offset);
memcpy(data, &addr, sizeof(void*));
}
l->data_pos += sizeof(void*);
return 1;
}
static bool ir_loader_sym_data_end(ir_loader *loader, uint32_t flags)
{
ir_main_loader *l = (ir_main_loader*) loader;
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
if (flags & IR_CONST_STRING) {
fprintf(l->dump_file, ";\n");
} else {
fprintf(l->dump_file, "};\n");
}
}
if (l->c_file) {
// TODO:
}
if (l->llvm_file) {
// TODO:
}
if (l->dump_asm || l->dump_size || l->run) {
if ((char*)l->data_start >= (char*)l->code_buffer.start
&& (char*)l->data_start < (char*)l->code_buffer.end) {
ir_mem_protect(l->code_buffer.start, (char*)l->code_buffer.end - (char*)l->code_buffer.start);
}
// TODO:
}
return 1;
}
static bool ir_loader_func_init(ir_loader *loader, ir_ctx *ctx, const char *name)
{
ir_main_loader *l = (ir_main_loader*) loader;
ir_init(ctx, loader->default_func_flags, 256, 1024);
ctx->mflags = l->mflags;
ctx->fixed_regset = ~l->debug_regset;
ctx->loader = loader;
return 1;
}
static bool ir_loader_func_process(ir_loader *loader, ir_ctx *ctx, const char *name)
{
ir_main_loader *l = (ir_main_loader*) loader;
// TODO: remove this
if (ctx->ret_type == (ir_type)-1) {
ir_ref ref = ctx->ir_base[1].op1;
while (ref) {
ir_insn *insn = &ctx->ir_base[ref];
if (insn->op == IR_RETURN) {
ctx->ret_type = insn->op2 ? ctx->ir_base[insn->op2].type : IR_VOID;
break;
} else if (insn->op == IR_UNREACHABLE && ctx->ir_base[insn->op1].op == IR_TAILCALL) {
ctx->ret_type = ctx->ir_base[insn->op1].type;
break;
}
ref = ctx->ir_base[ref].op3;
}
}
if (name == NULL) {
name = (l->run) ? "main" : "test";
} else if ((l->dump & IR_DUMP_SAVE) && l->dump_file) {
if (ctx->flags & IR_STATIC) {
fprintf(l->dump_file, "static ");
}
fprintf(l->dump_file, "func %s(", name);
if (ctx->ir_base[2].op == IR_PARAM) {
ir_insn *insn = &ctx->ir_base[2];
fprintf(l->dump_file, "%s", ir_type_cname[insn->type]);
insn++;
while (insn->op == IR_PARAM) {
fprintf(l->dump_file, ", %s", ir_type_cname[insn->type]);
insn++;;
}
if (ctx->flags & IR_VARARG_FUNC) {
fprintf(l->dump_file, ", ...");
}
} else if (ctx->flags & IR_VARARG_FUNC) {
fprintf(l->dump_file, "...");
}
fprintf(l->dump_file, "): %s", ir_type_cname[ctx->ret_type != (ir_type)-1 ? ctx->ret_type : IR_VOID]);
if (ctx->flags & IR_FASTCALL_FUNC) {
fprintf(l->dump_file, " __fastcall");
}
fprintf(l->dump_file, "\n");
}
if (!ir_compile_func(ctx, l->opt_level, l->save_flags, l->dump, l->dump_file, name)) {
return 0;
}
if (l->c_file) {
if (!ir_emit_c(ctx, name, l->c_file)) {
fprintf(stderr, "\nERROR: %d\n", ctx->status);
return 0;
}
}
if (l->llvm_file) {
if (!ir_emit_llvm(ctx, name, l->llvm_file)) {
fprintf(stderr, "\nERROR: %d\n", ctx->status);
return 0;
}
}
if (l->dump_asm || l->dump_size || l->run) {
size_t size;
void *entry;
if (l->code_buffer.start) {
ctx->code_buffer = &l->code_buffer;
ir_mem_unprotect(l->code_buffer.start, (char*)l->code_buffer.end - (char*)l->code_buffer.start);
}