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cc65/test/ref/cc65090913.c

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/*
!!DESCRIPTION!! optimizer bug
!!ORIGIN!! testsuite
!!LICENCE!! Public Domain
!!AUTHOR!! Oliver Schmidt
*/
/*
> I found the problem and fixed it. cc65 treated a label as a statement, but
> the standard says, that a label is part of a statement. In a loop without
> curly braces like
>
> while (foo < bar)
> label: ++foo;
>
> the following statement is the one that is looped over - and because cc65
> treated just the label as a statement, it created code that looped forever.
*/
#include <stdio.h>
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int foo=0,bar=2;
int main(void)
{
while(foo<bar)
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label: ++foo;
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printf("foo: %d bar: %d\n",foo,bar);
return 0;
}