mirror of
https://github.com/fluencelabs/wasmer
synced 2024-12-13 14:25:32 +00:00
28 lines
688 B
C
28 lines
688 B
C
|
/*
|
||
|
|
* Copyright 2016 The Emscripten Authors. All rights reserved.
|
||
|
|
* Emscripten is available under two separate licenses, the MIT license and the
|
||
|
|
* University of Illinois/NCSA Open Source License. Both these licenses can be
|
||
|
|
* found in the LICENSE file.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
int main(void) {
|
||
|
|
const void *addrs[2] = {&&FOO, &&BAR};
|
||
|
|
|
||
|
|
// confuse the optimizer so it doesn't hardcode the jump and avoid generating
|
||
|
|
// an |indirectbr| instruction
|
||
|
|
int which = 0;
|
||
|
|
for (int x = 0; x < 1000; x++) which = (which + x * x) % 7;
|
||
|
|
which = (which % 2) + 1;
|
||
|
|
|
||
|
|
goto *addrs[which];
|
||
|
|
|
||
|
|
FOO:
|
||
|
|
printf("bad\n");
|
||
|
|
return 0;
|
||
|
|
BAR:
|
||
|
|
printf("good\n");
|
||
|
|
const void *addr = &&FOO;
|
||
|
|
goto *addr;
|
||
|
|
}
|