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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [testsuite/] [gcc.target/] [alpha/] [asm-1.c] - Rev 20
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/* Asm operands that are given as hard registers must keep the same hard register all the way through compilation. Example derived from glibc source. */ /* { dg-do compile { target alpha*-*-* } } */ /* { dg-options "-O2 -frename-registers -fcprop-registers" } */ /* { dg-final { scan-assembler "callsys1 .0 .19 .0 .16 .17" } } */ /* { dg-final { scan-assembler "callsys2 .0 .19 .0 .16 .17" } } */ struct stat { int dummy; }; struct kernel_stat { int dummy; }; extern int xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf); extern int *__errno_location (void) __attribute__ ((__const__)); int __fxstat (int vers, int fd, struct stat *buf) { struct kernel_stat kbuf; int result; if (vers == 0) return ({ long _sc_ret, _sc_err; { register long _sc_0 __asm__("$0"); register long _sc_16 __asm__("$16"); register long _sc_17 __asm__("$17"); register long _sc_19 __asm__("$19"); _sc_0 = 91; _sc_16 = (long) (fd); _sc_17 = (long) (((struct kernel_stat *) buf)); __asm__("callsys1 %0 %1 %2 %3 %4" : "=r"(_sc_0), "=r"(_sc_19) : "0"(_sc_0), "r"(_sc_16), "r"(_sc_17) : "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$22", "$23", "$24", "$25", "$27", "$28", "memory"); _sc_ret = _sc_0, _sc_err = _sc_19; } if (_sc_err) { (*__errno_location ()) = (_sc_ret); _sc_ret = -1L; } _sc_ret; }); result = ({ long _sc_ret, _sc_err; { register long _sc_0 __asm__("$0"); register long _sc_16 __asm__("$16"); register long _sc_17 __asm__("$17"); register long _sc_19 __asm__("$19"); _sc_0 = 91; _sc_16 = (long) (fd); _sc_17 = (long) ((&kbuf)); __asm__("callsys2 %0 %1 %2 %3 %4" : "=r"(_sc_0), "=r"(_sc_19) : "0"(_sc_0), "r"(_sc_16), "r"(_sc_17) : "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$22", "$23", "$24", "$25", "$27", "$28", "memory"); _sc_ret = _sc_0, _sc_err = _sc_19; } if (_sc_err) { (*__errno_location ()) = (_sc_ret); _sc_ret = -1L; } _sc_ret; }); if (result == 0) result = xstat_conv (vers, &kbuf, buf); return result; }
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