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Merge pull request #45 from weltling/example_func_call

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examples: Add native function call example
This commit is contained in:
Dmitry Stogov 2023-07-03 09:37:56 +03:00 committed by GitHub
commit 51d1bbbe09
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3 changed files with 63 additions and 2 deletions
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2
Makefile
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@ -48,7 +48,7 @@ OBJS_COMMON = $(BUILD_DIR)/ir.o $(BUILD_DIR)/ir_strtab.o $(BUILD_DIR)/ir_cfg.o \
OBJS_IR = $(BUILD_DIR)/ir_main.o
OBJS_IR_TEST = $(BUILD_DIR)/ir_test.o
EXAMPLE_EXES = $(EXAMPLES_BUILD_DIR)/0001-basic $(EXAMPLES_BUILD_DIR)/0001-while $(EXAMPLES_BUILD_DIR)/0005-basic-runner-func \
$(EXAMPLES_BUILD_DIR)/0001-pointer
$(EXAMPLES_BUILD_DIR)/0001-pointer $(EXAMPLES_BUILD_DIR)/0001-func
all: $(BUILD_DIR) $(BUILD_DIR)/ir $(BUILD_DIR)/ir_test

61
examples/0001-func.c Normal file
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@ -0,0 +1,61 @@
/*
* IR - Lightweight JIT Compilation Framework
* (Exmaples package)
* Copyright (C) 2023 by IR project.
* Authors: Anatol Belski <anbelski@linux.microsoft.com>
*/
#include "ir.h"
#include "ir_builder.h"
#include <stdlib.h>
#include <stdio.h>
uint8_t hello(void)
{
printf("I'm Hello\n");
return 42;
}
/*
* uint8_t myfunc() {
* return hello();
* }
*/
typedef uint8_t (*myfunc_t)();
void gen_myfunc(ir_ctx *ctx)
{
/* Function entry start */
ir_START();
/* Load function address. */
ir_ref addr = ir_CONST_ADDR(hello);
/* Call function. */
ir_ref ret = ir_CALL(IR_U8, addr);
/* Function end, return value */
ir_RETURN(ret);
}
int main(int argc, char **argv)
{
ir_ctx ctx = {0};
ir_consistency_check();
ir_init(&ctx, IR_FUNCTION | IR_OPT_FOLDING, IR_CONSTS_LIMIT_MIN, IR_INSNS_LIMIT_MIN);
gen_myfunc(&ctx);
size_t size;
void *entry = ir_jit_compile(&ctx, 2, &size);
if (entry) {
uint8_t i = ((myfunc_t)entry)();
printf("i=%u\n", i);
}
ir_free(&ctx);
return 0;
}

2
win32/Makefile
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@ -79,7 +79,7 @@ OBJS_COMMON=$(BUILD_DIR)\ir.obj $(BUILD_DIR)\ir_strtab.obj $(BUILD_DIR)\ir_cfg.o
OBJS_IR = $(BUILD_DIR)\ir_main.obj
OBJS_IR_TEST = $(BUILD_DIR)\ir_test.obj
EXAMPLE_EXES = $(EXAMPLES_BUILD_DIR)\0001-basic.exe $(EXAMPLES_BUILD_DIR)\0001-while.exe $(EXAMPLES_BUILD_DIR)\0005-basic-runner-func.exe \
$(EXAMPLES_BUILD_DIR)\0001-pointer.exe
$(EXAMPLES_BUILD_DIR)\0001-pointer.exe $(EXAMPLES_BUILD_DIR)\0001-func.exe
all: $(BUILD_DIR) $(BUILD_DIR)\ir.exe $(BUILD_DIR)\ir_test.exe