diff options
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-shrx64-1.c')
-rw-r--r-- | gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-shrx64-1.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-shrx64-1.c b/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-shrx64-1.c new file mode 100644 index 000000000..81d232e76 --- /dev/null +++ b/gcc-4.8/gcc/testsuite/gcc.target/i386/bmi2-shrx64-1.c @@ -0,0 +1,34 @@ +/* { dg-do run { target { bmi2 && { ! ia32 } } } } */ +/* { dg-options "-mbmi2 -O2 -dp" } */ + +#include "bmi2-check.h" + +__attribute__((noinline)) +unsigned long long +calc_shrx_u64 (unsigned long long a, int l) +{ + unsigned long long volatile res = a; + int i; + for (i = 0; i < l; ++i) + res >>= 1; + + return res; +} + +static void +bmi2_test () +{ + unsigned i; + unsigned long long src = 0xce7ace0ce7ace0; + unsigned long long res, res_ref; + + for (i = 0; i < 5; ++i) { + src = src * (i + 1); + + res_ref = calc_shrx_u64 (src, i + 1); + res = src >> (i + 1); + + if (res != res_ref) + abort(); + } +} |