diff options
Diffstat (limited to 'cipher/rijndael-ppc-common.h')
| -rw-r--r-- | cipher/rijndael-ppc-common.h | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/cipher/rijndael-ppc-common.h b/cipher/rijndael-ppc-common.h index 165dd9f7..bbbeaac0 100644 --- a/cipher/rijndael-ppc-common.h +++ b/cipher/rijndael-ppc-common.h @@ -188,20 +188,36 @@ static ASM_FUNC_ATTR_INLINE block asm_aligned_ld(unsigned long offset, const void *ptr) { block vec; - __asm__ volatile ("lvx %0,%1,%2\n\t" - : "=v" (vec) - : "r" (offset), "r" ((uintptr_t)ptr) - : "memory", "r0"); +#if __GNUC__ >= 4 + if (__builtin_constant_p (offset) && offset == 0) + __asm__ volatile ("lvx %0,0,%1\n\t" + : "=v" (vec) + : "r" ((uintptr_t)ptr) + : "memory"); + else +#endif + __asm__ volatile ("lvx %0,%1,%2\n\t" + : "=v" (vec) + : "r" (offset), "r" ((uintptr_t)ptr) + : "memory", "r0"); return vec; } static ASM_FUNC_ATTR_INLINE void asm_aligned_st(block vec, unsigned long offset, void *ptr) { - __asm__ volatile ("stvx %0,%1,%2\n\t" - : - : "v" (vec), "r" (offset), "r" ((uintptr_t)ptr) - : "memory", "r0"); +#if __GNUC__ >= 4 + if (__builtin_constant_p (offset) && offset == 0) + __asm__ volatile ("stvx %0,0,%1\n\t" + : + : "v" (vec), "r" ((uintptr_t)ptr) + : "memory"); + else +#endif + __asm__ volatile ("stvx %0,%1,%2\n\t" + : + : "v" (vec), "r" (offset), "r" ((uintptr_t)ptr) + : "memory", "r0"); } static ASM_FUNC_ATTR_INLINE block |