mirror of
https://github.com/danog/ir.git
synced 2024-11-27 04:45:38 +01:00
438 lines
12 KiB
C
438 lines
12 KiB
C
#include "ir.h"
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#include <stdlib.h>
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static void help(const char *cmd)
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{
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printf(
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"Usage: %s [options] input-file...\n"
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"Options:\n"
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" -O[012] - optimiztion level\n"
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" -S - dump final target assembler code\n"
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" -mavx - use AVX instruction set\n"
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" -muse-fp - use base frame pointer register\n"
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" --emit-c [file-name] - convert to C source\n"
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" --save [file-name] - save IR\n"
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" --dot [file-name] - dump IR graph\n"
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" --dump [file-name] - dump IR table\n"
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" --dump-after-load - dump IR after load and local optimiztion\n"
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" --dump-after-sccp - dump IR after SCCP optimization pass\n"
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" --dump-after-gcm - dump IR after GCM optimization pass\n"
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" --dump-after-schedule - dump IR after SCHEDULE pass\n"
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" --dump-after-live-ranges - dump IR after live ranges identification\n"
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" --dump-after-coalescing - dump IR after live ranges identification\n"
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" --dump-after-all - dump IR after each pass\n"
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" --dump-use-lists - dump def->use lists\n"
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" --dump-cfg - dump CFG (Control Flow Graph)\n"
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" --dump-gcm - dump GCM schedule (Global Code Motion)\n"
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#ifdef IR_DEBUG
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" --debug-sccp - debug SCCP optimization pass\n"
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" --debug-gcm - debug GCM optimization pass\n"
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" --debug-ra - debug register allocator\n"
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" --debug-regset <bit-mask> - restrict available register set\n"
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#endif
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" --version\n"
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" --help\n",
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cmd);
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}
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#define IR_DUMP_SAVE (1<<0)
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#define IR_DUMP_DUMP (1<<1)
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#define IR_DUMP_DOT (1<<2)
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#define IR_DUMP_USE_LISTS (1<<3)
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#define IR_DUMP_CFG (1<<4)
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#define IR_DUMP_GCM (1<<5)
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#define IR_DUMP_LIVE_RANGES (1<<6)
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#define IR_DUMP_AFTER_LOAD (1<<16)
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#define IR_DUMP_AFTER_SCCP (1<<17)
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#define IR_DUMP_AFTER_GCM (1<<18)
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#define IR_DUMP_AFTER_SCHEDULE (1<<19)
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#define IR_DUMP_AFTER_LIVE_RANGES (1<<20)
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#define IR_DUMP_AFTER_COALESCING (1<<21)
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#define IR_DUMP_AFTER_ALL (1<<29)
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#define IR_DUMP_FINAL (1<<30)
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static int _save(ir_ctx *ctx, uint32_t dump, uint32_t pass, const char *dump_file)
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{
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char fn[4096];
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FILE *f;
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if (dump_file) {
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if (dump & IR_DUMP_AFTER_ALL) {
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if (pass == IR_DUMP_AFTER_LOAD) {
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snprintf(fn, sizeof(fn)-1, "01-load-%s", dump_file);
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dump_file = fn;
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} else if (pass == IR_DUMP_AFTER_SCCP) {
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snprintf(fn, sizeof(fn)-1, "02-sccp-%s", dump_file);
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dump_file = fn;
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} else if (pass == IR_DUMP_AFTER_GCM) {
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snprintf(fn, sizeof(fn)-1, "03-gcm-%s", dump_file);
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dump_file = fn;
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} else if (pass == IR_DUMP_AFTER_SCHEDULE) {
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snprintf(fn, sizeof(fn)-1, "04-schedule-%s", dump_file);
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dump_file = fn;
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} else if (pass == IR_DUMP_AFTER_LIVE_RANGES) {
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snprintf(fn, sizeof(fn)-1, "05-live-ranges-%s", dump_file);
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dump_file = fn;
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} else if (pass == IR_DUMP_AFTER_COALESCING) {
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snprintf(fn, sizeof(fn)-1, "06-coalescing-%s", dump_file);
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dump_file = fn;
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} else if (pass == IR_DUMP_FINAL) {
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snprintf(fn, sizeof(fn)-1, "07-final-%s", dump_file);
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dump_file = fn;
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}
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}
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f = fopen(dump_file, "w+");
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if (!f) {
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fprintf(stderr, "ERROR: Cannot create file '%s'\n", dump_file);
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return 0;
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}
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} else {
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f = stderr;
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}
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if (dump & IR_DUMP_SAVE) {
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ir_save(ctx, f);
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}
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if (dump & IR_DUMP_DUMP) {
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ir_dump(ctx, f);
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}
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if (dump & IR_DUMP_DOT) {
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ir_dump_dot(ctx, f);
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}
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if (dump & IR_DUMP_USE_LISTS) {
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ir_dump_use_lists(ctx, f);
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}
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if (dump & IR_DUMP_CFG) {
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ir_dump_cfg(ctx, f);
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}
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if (dump & IR_DUMP_GCM) {
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ir_dump_gcm(ctx, f);
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}
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if (dump & IR_DUMP_LIVE_RANGES) {
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ir_dump_live_ranges(ctx, f);
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}
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if (dump_file) {
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fclose(f);
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}
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return 1;
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}
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int ir_compile_func(ir_ctx *ctx, int opt_level, uint32_t dump, const char *dump_file)
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{
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if (opt_level > 0) {
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ir_build_def_use_lists(ctx);
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}
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if ((dump & (IR_DUMP_AFTER_LOAD|IR_DUMP_AFTER_ALL))
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&& !_save(ctx, dump, IR_DUMP_AFTER_LOAD, dump_file)) {
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return 0;
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}
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/* Global Optimization */
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if (opt_level > 1) {
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ir_sccp(ctx);
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if ((dump & (IR_DUMP_AFTER_SCCP|IR_DUMP_AFTER_ALL))
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&& !_save(ctx, dump, IR_DUMP_AFTER_SCCP, dump_file)) {
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return 0;
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}
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}
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/* Schedule */
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if (opt_level > 0) {
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ir_build_cfg(ctx);
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ir_build_dominators_tree(ctx);
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ir_find_loops(ctx);
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ir_gcm(ctx);
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if ((dump & (IR_DUMP_AFTER_GCM|IR_DUMP_AFTER_ALL))
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&& !_save(ctx, dump, IR_DUMP_AFTER_GCM, dump_file)) {
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return 0;
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}
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ir_schedule(ctx);
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if ((dump & (IR_DUMP_AFTER_SCHEDULE|IR_DUMP_AFTER_ALL))
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&& !_save(ctx, dump, IR_DUMP_AFTER_SCHEDULE, dump_file)) {
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return 0;
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}
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} else if (ctx->flags & (IR_GEN_NATIVE|IR_GEN_C)) {
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ir_build_def_use_lists(ctx);
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ir_build_cfg(ctx);
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}
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if (ctx->flags & IR_GEN_NATIVE) {
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ir_match(ctx);
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}
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if (opt_level > 0) {
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ir_assign_virtual_registers(ctx);
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ir_compute_live_ranges(ctx);
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if ((dump & (IR_DUMP_AFTER_LIVE_RANGES|IR_DUMP_AFTER_ALL))
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&& !_save(ctx, dump, IR_DUMP_AFTER_LIVE_RANGES, dump_file)) {
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return 0;
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}
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ir_coalesce(ctx);
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if ((dump & (IR_DUMP_AFTER_COALESCING|IR_DUMP_AFTER_ALL))
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&& !_save(ctx, dump, IR_DUMP_AFTER_COALESCING, dump_file)) {
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return 0;
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}
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if (ctx->flags & IR_GEN_NATIVE) {
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ir_reg_alloc(ctx);
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}
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ir_schedule_blocks(ctx);
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} else if (ctx->flags & (IR_GEN_NATIVE|IR_GEN_C)) {
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ir_assign_virtual_registers(ctx);
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ir_compute_dessa_moves(ctx);
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}
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if ((dump & (IR_DUMP_FINAL|IR_DUMP_AFTER_ALL))
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&& !_save(ctx, dump, IR_DUMP_FINAL, dump_file)) {
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return 0;
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}
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return 1;
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}
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int main(int argc, char **argv)
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{
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int i;
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char *input = NULL;
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char *dump_file = NULL, *c_file = NULL;
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FILE *f;
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ir_ctx ctx;
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bool emit_c = 0, dump_asm = 0, run = 0;
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uint32_t dump = 0;
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int opt_level = 2;
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uint32_t mflags = 0;
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IR_ASSERT(IR_UNUSED == 0);
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IR_ASSERT(IR_NOP == 0);
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IR_ASSERT((int)IR_BOOL == (int)IR_C_BOOL);
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IR_ASSERT((int)IR_U8 == (int)IR_C_U8);
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IR_ASSERT((int)IR_U16 == (int)IR_C_U16);
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IR_ASSERT((int)IR_U32 == (int)IR_C_U32);
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IR_ASSERT((int)IR_U64 == (int)IR_C_U64);
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IR_ASSERT((int)IR_ADDR == (int)IR_C_ADDR);
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IR_ASSERT((int)IR_CHAR == (int)IR_C_CHAR);
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IR_ASSERT((int)IR_I8 == (int)IR_C_I8);
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IR_ASSERT((int)IR_I16 == (int)IR_C_I16);
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IR_ASSERT((int)IR_I32 == (int)IR_C_I32);
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IR_ASSERT((int)IR_I64 == (int)IR_C_I64);
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IR_ASSERT((int)IR_DOUBLE == (int)IR_C_DOUBLE);
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IR_ASSERT((int)IR_FLOAT == (int)IR_C_FLOAT);
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IR_ASSERT((IR_EQ ^ 1) == IR_NE);
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IR_ASSERT((IR_LT ^ 3) == IR_GT);
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IR_ASSERT((IR_GT ^ 3) == IR_LT);
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IR_ASSERT((IR_LE ^ 3) == IR_GE);
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IR_ASSERT((IR_GE ^ 3) == IR_LE);
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IR_ASSERT((IR_ULT ^ 3) == IR_UGT);
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IR_ASSERT((IR_UGT ^ 3) == IR_ULT);
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IR_ASSERT((IR_ULE ^ 3) == IR_UGE);
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IR_ASSERT((IR_UGE ^ 3) == IR_ULE);
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IR_ASSERT(IR_ADD + 1 == IR_SUB);
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for (i = 1; i < argc; i++) {
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if (strcmp(argv[i], "-h") == 0
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|| strcmp(argv[i], "--help") == 0) {
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help(argv[0]);
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return 0;
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} else if (strcmp(argv[i], "--version") == 0) {
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printf("IR %s\n", IR_VERSION);
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return 0;
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} else if (argv[i][0] == '-' && argv[i][1] == 'O' && strlen(argv[i]) == 3) {
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if (argv[i][2] == '0') {
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opt_level = 0;
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} else if (argv[i][2] == '1') {
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opt_level = 1;
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} else if (argv[i][2] == '2') {
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opt_level = 2;
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} else {
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fprintf(stderr, "ERROR: Invalid usage' (use --help)\n");
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return 1;
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}
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} else if (strcmp(argv[i], "--emit-c") == 0) {
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emit_c = 1;
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if (i + 1 < argc && argv[i + 1][0] != '-') {
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c_file = argv[i + 1];
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i++;
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}
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} else if (strcmp(argv[i], "--save") == 0) {
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// TODO: check save/dot/dump/... conflicts
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dump |= IR_DUMP_SAVE;
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if (i + 1 < argc && argv[i + 1][0] != '-') {
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dump_file = argv[i + 1];
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i++;
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}
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} else if (strcmp(argv[i], "--dot") == 0) {
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dump |= IR_DUMP_DOT;
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if (i + 1 < argc && argv[i + 1][0] != '-') {
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dump_file = argv[i + 1];
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i++;
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}
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} else if (strcmp(argv[i], "--dump") == 0) {
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dump |= IR_DUMP_DUMP;
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if (i + 1 < argc && argv[i + 1][0] != '-') {
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dump_file = argv[i + 1];
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i++;
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}
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} else if (strcmp(argv[i], "--dump-use-lists") == 0) {
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dump |= IR_DUMP_USE_LISTS;
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} else if (strcmp(argv[i], "--dump-cfg") == 0) {
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dump |= IR_DUMP_CFG;
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} else if (strcmp(argv[i], "--dump-gcm") == 0) {
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dump |= IR_DUMP_GCM;
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} else if (strcmp(argv[i], "--dump-live-ranges") == 0) {
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dump |= IR_DUMP_LIVE_RANGES;
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} else if (strcmp(argv[i], "--dump-after-load") == 0) {
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dump |= IR_DUMP_AFTER_LOAD;
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} else if (strcmp(argv[i], "--dump-after-sccp") == 0) {
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dump |= IR_DUMP_AFTER_SCCP;
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} else if (strcmp(argv[i], "--dump-after-gcm") == 0) {
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dump |= IR_DUMP_AFTER_GCM;
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} else if (strcmp(argv[i], "--dump-after-schedule") == 0) {
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dump |= IR_DUMP_AFTER_SCHEDULE;
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} else if (strcmp(argv[i], "--dump-after-live-ranges") == 0) {
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dump |= IR_DUMP_AFTER_LIVE_RANGES;
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} else if (strcmp(argv[i], "--dump-after-coalescing") == 0) {
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dump |= IR_DUMP_AFTER_COALESCING;
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} else if (strcmp(argv[i], "--dump-after-all") == 0) {
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dump |= IR_DUMP_AFTER_ALL;
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} else if (strcmp(argv[i], "--dump-final") == 0) {
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dump |= IR_DUMP_FINAL;
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} else if (strcmp(argv[i], "-S") == 0) {
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dump_asm = 1;
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} else if (strcmp(argv[i], "--run") == 0) {
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run = 1;
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} else if (strcmp(argv[i], "-mavx") == 0) {
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mflags |= IR_AVX;
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} else if (strcmp(argv[i], "-muse-fp") == 0) {
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mflags |= IR_USE_FRAME_POINTER;
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#ifdef IR_DEBUG
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} else if (strcmp(argv[i], "--debug-sccp") == 0) {
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mflags |= IR_DEBUG_SCCP;
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} else if (strcmp(argv[i], "--debug-gcm") == 0) {
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mflags |= IR_DEBUG_GCM;
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} else if (strcmp(argv[i], "--debug-ra") == 0) {
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mflags |= IR_DEBUG_RA;
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#endif
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#ifdef IR_DEBUG_REGSET
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} else if (strcmp(argv[i], "--debug-regset") == 0) {
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if (i + 1 == argc || argv[i + 1][0] == '-') {
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fprintf(stderr, "ERROR: Invalid usage' (use --help)\n");
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return 1;
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}
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debug_regset = strtoul(argv[i + 1], NULL, 0);
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i++;
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#endif
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} else if (argv[i][0] == '-') {
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fprintf(stderr, "ERROR: Unknown option '%s' (use --help)\n", argv[i]);
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return 1;
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} else {
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if (input) {
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fprintf(stderr, "ERROR: Invalid usage' (use --help)\n");
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return 1;
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}
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input = argv[i];
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}
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}
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if (dump && !(dump & (IR_DUMP_AFTER_LOAD|IR_DUMP_AFTER_SCCP|
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IR_DUMP_AFTER_GCM|IR_DUMP_AFTER_SCHEDULE|
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IR_DUMP_AFTER_LIVE_RANGES|IR_DUMP_AFTER_COALESCING|IR_DUMP_FINAL))) {
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dump |= IR_DUMP_FINAL;
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}
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if (!input) {
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fprintf(stderr, "ERROR: no input file\n");
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return 1;
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}
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f = fopen(input, "r");
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if (!f) {
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fprintf(stderr, "ERROR: Cannot open input file '%s'\n", input);
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return 1;
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}
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ir_loader_init();
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ir_init(&ctx, 256, 1024);
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ctx.flags |= IR_FUNCTION;
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ctx.flags |= mflags;
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if (opt_level > 0) {
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ctx.flags |= IR_OPT_FOLDING | IR_OPT_CODEGEN;
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}
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if (emit_c) {
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ctx.flags |= IR_GEN_C;
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}
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if (dump_asm || run) {
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ctx.flags |= IR_GEN_NATIVE;
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}
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if (!ir_load(&ctx, f)) {
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fprintf(stderr, "ERROR: Cannot load input file '%s'\n", input);
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return 1;
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}
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fclose(f);
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if (!ir_compile_func(&ctx, opt_level, dump, dump_file)) {
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return 1;
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}
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if (emit_c) {
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if (c_file) {
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f = fopen(c_file, "w+");
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if (!f) {
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fprintf(stderr, "ERROR: Cannot create file '%s'\n", c_file);
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return 0;
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}
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} else {
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f = stderr;
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}
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ir_emit_c(&ctx, f);
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if (c_file) {
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fclose(f);
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}
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}
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if (dump_asm || run) {
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size_t size;
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void *entry = ir_emit(&ctx, &size);
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if (entry) {
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if (dump_asm) {
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ir_disasm_add_symbol("test", (uintptr_t)entry, size);
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ir_disasm("test", entry, size);
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}
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if (run) {
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int (*func)(void) = entry;
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int ret;
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ir_perf_map_register("test", entry, size);
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ir_perf_jitdump_open();
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ir_perf_jitdump_register("test", entry, size);
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ir_mem_unprotect(entry, 4096);
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ir_gdb_register("test", entry, size, 0, 0);
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ir_mem_protect(entry, 4096);
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ret = func();
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fflush(stdout);
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fprintf(stderr, "\nexit code = %d\n", ret);
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}
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}
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}
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ir_free(&ctx);
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ir_loader_free();
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return 0;
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}
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