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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.target/] [i386/] [980709-1.c] - Rev 323
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/* { dg-do compile } */ /* { dg-options -O2 } */ extern __inline__ int test_and_set_bit(int nr, volatile void * addr) { int oldbit; __asm__ __volatile__( "" "btsl %2,%1\n\tsbbl %0,%0" :"=r" (oldbit),"=m" (addr) :"ir" (nr)); return oldbit; } struct buffer_head { unsigned long b_state; }; extern void lock_buffer(struct buffer_head * bh) { while (test_and_set_bit(2 , &bh->b_state)) __wait_on_buffer(bh); }
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