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62 lines
1006 B
C
62 lines
1006 B
C
/*
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* IR - Lightweight JIT Compilation Framework
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* (Examples 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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#include <stdio.h>
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uint8_t hello(void)
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{
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printf("I'm Hello\n");
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return 42;
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}
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/*
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* uint8_t myfunc() {
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* return hello();
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* }
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*/
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typedef uint8_t (*myfunc_t)();
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void gen_myfunc(ir_ctx *ctx)
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{
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/* Function entry start */
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ir_START();
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/* Load function address. */
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ir_ref addr = ir_CONST_ADDR(hello);
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/* Call function. */
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ir_ref ret = ir_CALL(IR_U8, addr);
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/* Function end, return value */
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ir_RETURN(ret);
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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_OPT_FOLDING, IR_CONSTS_LIMIT_MIN, IR_INSNS_LIMIT_MIN);
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gen_myfunc(&ctx);
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size_t size;
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void *entry = ir_jit_compile(&ctx, 2, &size);
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if (entry) {
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uint8_t i = ((myfunc_t)entry)();
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printf("i=%u\n", i);
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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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