20030605-1.c

来自「Mac OS X 10.4.9 for x86 Source Code gcc」· C语言 代码 · 共 13 行

/* Test for proper preparation of the comparison operands for 
   generation of a conditional trap.  Produced unrecognizable
   rtl on Sparc.  */

struct blah { char *b_data; };

void set_bh_page(struct blah *bh, unsigned long offset)
{
        if ((1UL << 12 ) <= offset)
                __builtin_trap() ;
        bh->b_data = (char *)offset;
}