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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc2/] [gcc/] [testsuite/] [gcc.target/] [i386/] [pr39804.c] - Rev 318
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/* { dg-do compile } */ /* { dg-require-effective-target ilp32 } */ /* { dg-options "-O" } */ typedef unsigned char u8; struct __large_struct { unsigned long buf[100]; }; static inline __attribute__((always_inline)) unsigned long __copy_from_user_inatomic(void *to, const void *from, unsigned long n) { unsigned long ret = 0; asm volatile("1: mov""b"" %2,%""b""1\n" "2:\n" ".section .fixup,\"ax\"\n" "3: mov %3,%0\n" " xor""b"" %""b""1,%""b""1\n" " jmp 2b\n" ".previous\n" " .section __ex_table,\"a\"\n" " " ".balign 4" " " "\n" " " ".long" " " "1b" "," "3b" "\n" " .previous\n" : "=r" (ret), "=q"(*(u8 *)to) : "m" ((*(struct __large_struct *)(from))), "i" (1), "0" (ret)); return ret; } void romchecksum(const unsigned char *rom, unsigned char c) { unsigned char sum; for (sum = 0; !__copy_from_user_inatomic(&(c), ( typeof(c) *)(rom++), sizeof(c));) sum += c; }
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