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54 lines
987 B
C
54 lines
987 B
C
/*
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* IR - Lightweight JIT Compilation Framework
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* (Exmaples package)
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* Copyright (C) 2023 by IR project.
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* Authors: Anatol Belski <anbelski@linux.microsoft.com>
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*/
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#include "ir.h"
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#include "ir_builder.h"
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#include <stdlib.h>
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/*
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* int32_t myfunc(int32_t x, int32_t y) {
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* return x - y;
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* }
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*/
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typedef int32_t (*myfunc_t)(int32_t, int32_t);
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void gen_myfunc(ir_ctx *ctx)
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{
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ir_START();
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ir_ref x = ir_PARAM(IR_I32, "x", 1);
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ir_ref y = ir_PARAM(IR_I32, "y", 2);
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ir_ref cr = ir_SUB_I32(x, y);
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ir_RETURN(cr);
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}
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int main(int argc, char **argv)
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{
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ir_ctx ctx = {0};
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ir_consistency_check();
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ir_init(&ctx, IR_FUNCTION, IR_CONSTS_LIMIT_MIN, IR_INSNS_LIMIT_MIN);
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gen_myfunc(&ctx);
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ir_build_def_use_lists(&ctx);
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ir_build_cfg(&ctx);
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ir_match(&ctx);
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ir_assign_virtual_registers(&ctx);
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ir_compute_dessa_moves(&ctx);
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size_t size;
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void *entry = ir_emit_code(&ctx, &size);
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if (entry) {
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printf("42 - 24 = %d\n", ((myfunc_t)entry)(42, 24));
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}
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ir_free(&ctx);
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return 0;
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}
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