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9b1ce974cb
ir/ir_main.c
Dmitry Stogov 9b1ce974cb Improve loader interface (incomplete)
2023-10-20 01:09:46 +03:00

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/*
* IR - Lightweight JIT Compilation Framework
* (IR CLI driver)
* Copyright (C) 2022 Zend by Perforce.
* Authors: Dmitry Stogov <dmitry@php.net>
*/
#include "ir.h"
#include "ir_private.h" // TODO: move this together with loader
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
# include <windows.h>
#endif
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"
" -S - dump final target assembler code\n"
#if defined(IR_TARGET_X86) || defined(IR_TARGET_X64)
" -mavx - use AVX 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"
" --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-sccp - dump IR after SCCP optimization pass\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-all - dump IR after each pass\n"
" --dump-final - dump IR after all pass\n"
" --dump-size - dump generated code size\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-schedule - debug SCHEDULE optimization pass\n"
" --debug-ra - debug register allocator\n"
" --debug-regset <bit-mask> - restrict available register set\n"
#endif
" --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_NAME (1<<8)
#define IR_DUMP_AFTER_LOAD (1<<16)
#define IR_DUMP_AFTER_SCCP (1<<17)
#define IR_DUMP_AFTER_GCM (1<<18)
#define IR_DUMP_AFTER_SCHEDULE (1<<19)
#define IR_DUMP_AFTER_LIVE_RANGES (1<<20)
#define IR_DUMP_AFTER_COALESCING (1<<21)
#define IR_DUMP_AFTER_ALL (1<<29)
#define IR_DUMP_FINAL (1<<30)
static int _save(ir_ctx *ctx, 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_SCCP) {
snprintf(fn, sizeof(fn)-1, "02-sccp-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_GCM) {
snprintf(fn, sizeof(fn)-1, "03-gcm-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_SCHEDULE) {
snprintf(fn, sizeof(fn)-1, "04-schedule-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_LIVE_RANGES) {
snprintf(fn, sizeof(fn)-1, "05-live-ranges-%s.ir", func_name);
} else if (pass == IR_DUMP_AFTER_COALESCING) {
snprintf(fn, sizeof(fn)-1, "06-coalescing-%s.ir", func_name);
} else if (pass == IR_DUMP_FINAL) {
if (dump & IR_DUMP_CODEGEN) {
snprintf(fn, sizeof(fn)-1, "07-codegen-%s.ir", func_name);
} else {
snprintf(fn, sizeof(fn)-1, "07-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, f);
}
if (dump & IR_DUMP_DUMP) {
ir_dump(ctx, f);
}
if (dump & IR_DUMP_DOT) {
ir_dump_dot(ctx, 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 dump, FILE *dump_file, const char *func_name)
{
if ((dump & (IR_DUMP_AFTER_LOAD|IR_DUMP_AFTER_ALL))
&& !_save(ctx, 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);
}
ir_check(ctx);
/* Global Optimization */
if (opt_level > 1) {
ir_sccp(ctx);
if ((dump & (IR_DUMP_AFTER_SCCP|IR_DUMP_AFTER_ALL))
&& !_save(ctx, dump, IR_DUMP_AFTER_SCCP, dump_file, func_name)) {
return 0;
}
}
if (opt_level > 0 || (ctx->flags & (IR_GEN_NATIVE|IR_GEN_CODE))) {
ir_build_cfg(ctx);
}
/* Schedule */
if (opt_level > 0) {
ir_build_dominators_tree(ctx);
ir_find_loops(ctx);
ir_gcm(ctx);
if ((dump & (IR_DUMP_AFTER_GCM|IR_DUMP_AFTER_ALL))
&& !_save(ctx, dump, IR_DUMP_AFTER_GCM, dump_file, func_name)) {
return 0;
}
ir_schedule(ctx);
if ((dump & (IR_DUMP_AFTER_SCHEDULE|IR_DUMP_AFTER_ALL))
&& !_save(ctx, dump, IR_DUMP_AFTER_SCHEDULE, dump_file, func_name)) {
return 0;
}
}
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, 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, dump, IR_DUMP_AFTER_COALESCING, dump_file, func_name)) {
return 0;
}
if (ctx->flags & IR_GEN_NATIVE) {
ir_reg_alloc(ctx);
}
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, dump, IR_DUMP_FINAL, dump_file, func_name)) {
return 0;
}
ir_check(ctx);
return 1;
}
typedef struct _ir_sym {
void *addr;
} ir_sym;
typedef struct _ir_main_loader {
ir_loader loader;
int opt_level;
uint32_t mflags;
uint64_t debug_regset;
uint32_t dump;
bool dump_asm;
bool dump_size;
bool run;
size_t size;
void *main;
FILE *dump_file;
FILE *c_file;
FILE *llvm_file;
ir_strtab symtab;
ir_sym *sym;
ir_ref sym_count;
void *data;
} ir_main_loader;
static bool ir_loader_add_sym(ir_main_loader *l, const char *name, void *addr)
{
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) {
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;
return 1;
}
static void* ir_loader_resolve_sym_name(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);
void *addr;
if (val) {
return l->sym[val].addr;
}
addr = ir_resolve_sym_name(name);
ir_loader_add_sym(l, name, addr); /* cache */
return addr;
}
static bool ir_loader_external_sym_dcl(ir_loader *loader, const char *name, bool is_const)
{
ir_main_loader *l = (ir_main_loader*) loader;
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
fprintf(l->dump_file, "; external %s %s:\n", is_const ? "const" : "var", name);
}
if (l->dump_asm || l->dump_size || l->run) {
void *addr = ir_loader_resolve_sym_name(loader, name);
if (!addr) {
return 0;
}
if (l->dump_asm) {
ir_disasm_add_symbol(name, (uintptr_t)addr, sizeof(void*));
}
}
return 1;
}
static bool ir_loader_sym_dcl(ir_loader *loader, const char *name, bool is_const, bool is_static, size_t size, bool has_data)
{
ir_main_loader *l = (ir_main_loader*) loader;
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
fprintf(l->dump_file, "; %s%s %s: [%lld]\n", is_static ? "static " : "", is_const ? "const" : "var", name, (long long int)size);
}
if (l->dump_asm || l->dump_size || l->run) {
void *data = ir_mem_malloc(size);
if (!ir_loader_add_sym((ir_main_loader*)loader, name, data)) {
ir_mem_free(data);
return 0;
}
memset(data, 0, size);
if (has_data) {
l->data = data;
}
if (l->dump_asm) {
ir_disasm_add_symbol(name, (uintptr_t)data, size);
}
}
return 1;
}
static bool ir_loader_data(ir_loader *loader, ir_type type, uint32_t count, void *data)
{
ir_main_loader *l = (ir_main_loader*) loader;
size_t size;
uint32_t i;
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
switch (ir_type_size[type]) {
case 1:
for (i = 0; i < count; i++) {
fprintf(l->dump_file, "; .db 0x%02x\n", (uint32_t)*(uint8_t*)data);
data = (void*)((uintptr_t)data + 1);
}
break;
case 2:
for (i = 0; i < count; i++) {
fprintf(l->dump_file, "; .dw 0x%04x\n", (uint32_t)*(uint16_t*)data);
data = (void*)((uintptr_t)data + 1);
}
break;
case 4:
for (i = 0; i < count; i++) {
fprintf(l->dump_file, "; .dd 0x%08x\n", *(uint32_t*)data);
data = (void*)((uintptr_t)data + 4);
}
break;
case 8:
for (i = 0; i < count; i++) {
fprintf(l->dump_file, "; .dq 0x%016lx\n", *(uint64_t*)data);
data = (void*)((uintptr_t)data + 8);
}
break;
}
}
if (l->dump_asm || l->dump_size || l->run) {
if (!l->data) {
return 0;
}
size = ir_type_size[type] * count;
// TODO: alignement
memcpy(l->data, data, size);
l->data = (void*)((uintptr_t)l->data + size);
}
return 1;
}
static bool ir_loader_external_func_dcl(ir_loader *loader, const char *name)
{
ir_main_loader *l = (ir_main_loader*) loader;
if ((l->dump & IR_DUMP_SAVE) && (l->dump_file)) {
fprintf(l->dump_file, "; external func %s:\n", name);
}
if (l->dump_asm || l->dump_size || l->run) {
void *addr = ir_loader_resolve_sym_name(loader, name);
if (!addr) {
return 0;
}
if (l->dump_asm) {
ir_disasm_add_symbol(name, (uintptr_t)addr, sizeof(void*));
}
}
return 1;
}
static bool ir_loader_init_func(ir_loader *loader, ir_ctx *ctx, const char *name)
{
ir_main_loader *l = (ir_main_loader*) loader;
ctx->mflags = l->mflags;
ctx->fixed_regset = ~l->debug_regset;
ctx->loader = loader;
return 1;
}
static bool ir_loader_process_func(ir_loader *loader, ir_ctx *ctx, const char *name)
{
ir_main_loader *l = (ir_main_loader*) loader;
// TODO: remove this
if (name == NULL) {
name = (l->run) ? "main" : "test";
}
if ((l->dump & IR_DUMP_SAVE) && (l->dump & IR_DUMP_NAME) && l->dump_file) {
fprintf(l->dump_file, "%s:\n", name);
}
if (!ir_compile_func(ctx, l->opt_level, 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 = ir_emit_code(ctx, &size);
l->size += size;
if (entry) {
if (!ir_loader_add_sym(l, name, entry)) {
fprintf(stderr, "\nERROR: Symbol redefinition: %s\n", name);
return 0;
}
if (l->dump_asm) {
ir_ref i;
ir_insn *insn;
ir_disasm_add_symbol(name, (uintptr_t)entry, size);
for (i = IR_UNUSED + 1, insn = ctx->ir_base - i; i < ctx->consts_count; i++, insn--) {
if (insn->op == IR_FUNC) {
const char *name = ir_get_str(ctx, insn->val.i32);
void *addr = ir_loader_resolve_sym_name(loader, name);
ir_disasm_add_symbol(name, (uintptr_t)addr, sizeof(void*));
//TODO: } else if (insn->op == IR_SYM) {
}
}
ir_disasm(name, entry, size, 0, ctx, stderr);
}
if (l->run) {
#ifndef _WIN32
ir_perf_map_register(name, entry, size);
ir_perf_jitdump_open();
ir_perf_jitdump_register(name, entry, size);
ir_mem_unprotect(entry, 4096);
ir_gdb_register(name, entry, size, sizeof(void*), 0);
ir_mem_protect(entry, 4096);
#endif
if (strcmp(name, "main") == 0) {
l->main = entry;
}
}
} else {
fprintf(stderr, "\nERROR: %d\n", ctx->status);
return 0;
}
}
return 1;
}
int main(int argc, char **argv)
{
int i;
char *input = NULL;
char *dump_file = NULL, *c_file = NULL, *llvm_file = 0;
FILE *f;
bool emit_c = 0, emit_llvm = 0, dump_size = 0, dump_asm = 0, run = 0;
uint32_t dump = 0;
int opt_level = 2;
uint32_t flags = 0;
uint32_t mflags = 0;
uint64_t debug_regset = 0xffffffffffffffff;
#ifdef _WIN32
bool abort_fault = 1;
#endif
#if HAVE_LLVM
bool load_llvm_bitcode = 0;
bool load_llvm_asm = 0;
#endif
ir_main_loader loader;
ir_consistency_check();
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-h") == 0
|| strcmp(argv[i], "--help") == 0) {
help(argv[0]);
return 0;
} else if (strcmp(argv[i], "--version") == 0) {
printf("IR %s\n", IR_VERSION);
return 0;
} else if (strcmp(argv[i], "--target") == 0) {
printf("%s\n", IR_TARGET);
return 0;
} else if (argv[i][0] == '-' && argv[i][1] == 'O' && strlen(argv[i]) == 3) {
if (argv[i][2] == '0') {
opt_level = 0;
} else if (argv[i][2] == '1') {
opt_level = 1;
} else if (argv[i][2] == '2') {
opt_level = 2;
} else {
fprintf(stderr, "ERROR: Invalid usage' (use --help)\n");
return 1;
}
} else if (strcmp(argv[i], "--emit-c") == 0) {
emit_c = 1;
if (i + 1 < argc && argv[i + 1][0] != '-') {
c_file = argv[i + 1];
i++;
}
} else if (strcmp(argv[i], "--emit-llvm") == 0) {
emit_llvm = 1;
if (i + 1 < argc && argv[i + 1][0] != '-') {
llvm_file = argv[i + 1];
i++;
}
} else if (strcmp(argv[i], "--save") == 0) {
// TODO: check save/dot/dump/... conflicts
dump |= IR_DUMP_SAVE;
if (i + 1 < argc && argv[i + 1][0] != '-') {
dump_file = argv[i + 1];
i++;
}
} else if (strcmp(argv[i], "--dot") == 0) {
dump |= IR_DUMP_DOT;
if (i + 1 < argc && argv[i + 1][0] != '-') {
dump_file = argv[i + 1];
i++;
}
} else if (strcmp(argv[i], "--dump") == 0) {
dump |= IR_DUMP_DUMP;
if (i + 1 < argc && argv[i + 1][0] != '-') {
dump_file = argv[i + 1];
i++;
}
} else if (strcmp(argv[i], "--dump-use-lists") == 0) {
dump |= IR_DUMP_USE_LISTS;
} else if (strcmp(argv[i], "--dump-cfg") == 0) {
dump |= IR_DUMP_CFG;
} else if (strcmp(argv[i], "--dump-cfg-map") == 0) {
dump |= IR_DUMP_CFG_MAP;
} else if (strcmp(argv[i], "--dump-live-ranges") == 0) {
dump |= IR_DUMP_LIVE_RANGES;
} else if (strcmp(argv[i], "--dump-codegen") == 0) {
dump |= IR_DUMP_CODEGEN;
} else if (strcmp(argv[i], "--dump-after-load") == 0) {
dump |= IR_DUMP_AFTER_LOAD;
} else if (strcmp(argv[i], "--dump-after-sccp") == 0) {
dump |= IR_DUMP_AFTER_SCCP;
} else if (strcmp(argv[i], "--dump-after-gcm") == 0) {
dump |= IR_DUMP_AFTER_GCM;
} else if (strcmp(argv[i], "--dump-after-schedule") == 0) {
dump |= IR_DUMP_AFTER_SCHEDULE;
} else if (strcmp(argv[i], "--dump-after-live-ranges") == 0) {
dump |= IR_DUMP_AFTER_LIVE_RANGES;
} else if (strcmp(argv[i], "--dump-after-coalescing") == 0) {
dump |= IR_DUMP_AFTER_COALESCING;
} else if (strcmp(argv[i], "--dump-after-all") == 0) {
dump |= IR_DUMP_AFTER_ALL;
} else if (strcmp(argv[i], "--dump-final") == 0) {
dump |= IR_DUMP_FINAL;
} else if (strcmp(argv[i], "--dump-size") == 0) {
dump_size = 1;
} else if (strcmp(argv[i], "-S") == 0) {
dump_asm = 1;
} else if (strcmp(argv[i], "--run") == 0) {
run = 1;
#if defined(IR_TARGET_X86) || defined(IR_TARGET_X64)
} else if (strcmp(argv[i], "-mavx") == 0) {
mflags |= IR_X86_AVX;
#endif
} else if (strcmp(argv[i], "-muse-fp") == 0) {
flags |= IR_USE_FRAME_POINTER;
} else if (strcmp(argv[i], "-mfastcall") == 0) {
flags |= IR_FASTCALL_FUNC;
#ifdef IR_DEBUG
} else if (strcmp(argv[i], "--debug-sccp") == 0) {
flags |= IR_DEBUG_SCCP;
} else if (strcmp(argv[i], "--debug-gcm") == 0) {
flags |= IR_DEBUG_GCM;
} else if (strcmp(argv[i], "--debug-schedule") == 0) {
flags |= IR_DEBUG_SCHEDULE;
} else if (strcmp(argv[i], "--debug-ra") == 0) {
flags |= IR_DEBUG_RA;
#endif
} else if (strcmp(argv[i], "--debug-regset") == 0) {
if (i + 1 == argc || argv[i + 1][0] == '-') {
fprintf(stderr, "ERROR: Invalid usage' (use --help)\n");
return 1;
}
debug_regset = strtoull(argv[i + 1], NULL, 0);
i++;
#ifdef _WIN32
} else if (strcmp(argv[i], "--no-abort-fault") == 0) {
abort_fault = 0;
#endif
#if HAVE_LLVM
} else if (strcmp(argv[i], "--llvm-bitcode") == 0) {
if (input || i + 1 == argc || argv[i + 1][0] == '-') {
fprintf(stderr, "ERROR: Invalid usage' (use --help)\n");
return 1;
}
load_llvm_bitcode = 1;
input = argv[++i];
} else if (strcmp(argv[i], "--llvm-asm") == 0) {
if (input || i + 1 == argc || argv[i + 1][0] == '-') {
fprintf(stderr, "ERROR: Invalid usage' (use --help)\n");
return 1;
}
load_llvm_asm = 1;
input = argv[++i];
#endif
} else if (argv[i][0] == '-') {
fprintf(stderr, "ERROR: Unknown option '%s' (use --help)\n", argv[i]);
return 1;
} else {
if (input) {
fprintf(stderr, "ERROR: Invalid usage' (use --help)\n");
return 1;
}
input = argv[i];
}
}
if (dump && !(dump & (IR_DUMP_AFTER_LOAD|IR_DUMP_AFTER_SCCP|
IR_DUMP_AFTER_GCM|IR_DUMP_AFTER_SCHEDULE|
IR_DUMP_AFTER_LIVE_RANGES|IR_DUMP_AFTER_COALESCING|IR_DUMP_FINAL))) {
dump |= IR_DUMP_FINAL;
}
if (!input) {
fprintf(stderr, "ERROR: no input file\n");
return 1;
}
#if defined(IR_TARGET_X86) || defined(IR_TARGET_X64)
uint32_t cpuinfo = ir_cpuinfo();
if (!(cpuinfo & IR_X86_SSE2)) {
fprintf(stderr, "ERROR: incompatible CPU (SSE2 is not supported)\n");
return 1;
}
if ((mflags & IR_X86_AVX) && !(cpuinfo & IR_X86_AVX)) {
fprintf(stderr, "ERROR: -mavx is not compatible with CPU (AVX is not supported)\n");
return 1;
}
#endif
#ifdef _WIN32
if (!abort_fault) {
_set_abort_behavior(0, _WRITE_ABORT_MSG|_CALL_REPORTFAULT);
SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOGPFAULTERRORBOX);
}
#endif
flags |= IR_FUNCTION;
if (opt_level > 0) {
flags |= IR_OPT_FOLDING | IR_OPT_CFG | IR_OPT_CODEGEN;
}
if (emit_c || emit_llvm) {
flags |= IR_GEN_CODE;
}
if (dump_asm || dump_size || run) {
flags |= IR_GEN_NATIVE;
if (emit_c) {
fprintf(stderr, "ERROR: --emit-c is incompatible with native code generator (-S, --dump-size, --run)\n");
return 1;
}
}
loader.loader.default_func_flags = flags;
loader.loader.init_module = NULL;
loader.loader.external_sym_dcl = ir_loader_external_sym_dcl;
loader.loader.sym_dcl = ir_loader_sym_dcl;
loader.loader.data = ir_loader_data;
loader.loader.external_func_dcl = ir_loader_external_func_dcl;
loader.loader.forward_func_dcl = NULL;
loader.loader.init_func = ir_loader_init_func;
loader.loader.process_func = ir_loader_process_func;
loader.loader.resolve_sym_name = ir_loader_resolve_sym_name;
loader.opt_level = opt_level;
loader.mflags = mflags;
loader.debug_regset = debug_regset;
loader.dump = dump;
loader.dump_asm = dump_asm;
loader.dump_size = dump_size;
loader.run = run;
loader.size = 0;
loader.main = NULL;
loader.dump_file = NULL;
loader.c_file = NULL;
loader.llvm_file = NULL;
ir_strtab_init(&loader.symtab, 16, 4096);
loader.sym = NULL;
loader.sym_count = 0;
if (dump_file) {
loader.dump_file = fopen(dump_file, "w+");
if (!loader.dump_file) {
fprintf(stderr, "ERROR: Cannot create file '%s'\n", dump_file);
return 0;
}
} else {
loader.dump_file = stderr;
}
if (emit_c) {
if (c_file) {
loader.c_file = fopen(c_file, "w+");
if (!loader.c_file) {
fprintf(stderr, "ERROR: Cannot create file '%s'\n", c_file);
return 0;
}
} else {
loader.c_file = stderr;
}
}
if (emit_llvm) {
if (llvm_file) {
loader.llvm_file = fopen(llvm_file, "w+");
if (!loader.llvm_file) {
fprintf(stderr, "ERROR: Cannot create file '%s'\n", llvm_file);
return 0;
}
} else {
loader.llvm_file = stderr;
}
}
#if HAVE_LLVM
if (load_llvm_bitcode) {
loader.dump |= IR_DUMP_NAME;
if (!ir_load_llvm_bitcode(&loader.loader, input)) {
fprintf(stderr, "ERROR: Cannot load LLVM file '%s'\n", input);
return 1;
}
goto finish;
} else if (load_llvm_asm) {
loader.dump |= IR_DUMP_NAME;
if (!ir_load_llvm_asm(&loader.loader, input)) {
fprintf(stderr, "ERROR: Cannot load LLVM file '%s'\n", input);
return 1;
}
goto finish;
}
#endif
f = fopen(input, "rb");
if (!f) {
fprintf(stderr, "ERROR: Cannot open input file '%s'\n", input);
return 1;
}
ir_loader_init();
if (!ir_load(&loader.loader, f)) {
fprintf(stderr, "ERROR: Cannot load input file '%s'\n", input);
}
fclose(f);
ir_loader_free();
#if HAVE_LLVM
finish:
#endif
if (loader.dump_file && loader.dump_file != stderr) {
fclose(loader.dump_file);
}
if (loader.c_file && loader.c_file != stderr) {
fclose(loader.c_file);
}
if (loader.llvm_file && loader.llvm_file != stderr) {
fclose(loader.llvm_file);
}
if (dump_size) {
fprintf(stderr, "\ncode size = %lld\n", (long long int)loader.size);
}
ir_strtab_free(&loader.symtab);
if (loader.sym) {
ir_mem_free(loader.sym);
}
if (run && loader.main) {
int (*func)(void) = loader.main;
int ret = func();
fflush(stdout);
fprintf(stderr, "\nexit code = %d\n", ret);
}
return 0;
}
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