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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.target/] [i386/] [lzcnt-4.c] - Rev 848
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/* { dg-do run { target { lzcnt } } } */ /* { dg-options "-O2 -mlzcnt -fno-inline" } */ #include <x86intrin.h> #include "lzcnt-check.h" int calc_lzcnt_u32 (int src) { int i; int res = 0; while ((res < 32) && (((src >> (31 - res)) & 1) == 0)) ++res; return res; } static void lzcnt_test () { unsigned i; int src = 0xce7ace0; int res, res_ref; for (i=0; i<5; ++i) { src = src >> i; res_ref = calc_lzcnt_u32 (src); res = __lzcnt32 (src); if (res != res_ref) abort(); } }
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