diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index c97d050e..a121093d 100644 --- a/configure.ac +++ b/configure.ac @@ -2042,6 +2042,14 @@ AC_CACHE_CHECK([whether GCC inline assembler supports zSeries instructions], : : "a" (fac) : "memory"); + asm volatile ("risbgn %%r11, %%r11, 0, 129, 0\n\t" + : + : + : "memory", "r11"); + asm volatile ("algrk %%r14, %%r14, %%r14\n\t" + : + : + : "memory", "r14"); return (unsigned int)r1 ^ reg0; } ]])], |