Am 26.03.2013 um 11:14 schrieb Paolo Bonzini <pbonz...@redhat.com>:
> Il 26/03/2013 10:58, Peter Lieven ha scritto:
>> Signed-off-by: Peter Lieven <p...@kamp.de>
>> ---
>> include/qemu-common.h | 3 +++
>> 1 file changed, 3 insertions(+)
>>
>> diff --git a/include/qemu-common.h b/include/qemu-common.h
>> index d7ad3a7..9022646 100644
>> --- a/include/qemu-common.h
>> +++ b/include/qemu-common.h
>> @@ -453,6 +453,7 @@ void hexdump(const char *buf, FILE *fp, const char
>> *prefix, size_t size);
>> #include <altivec.h>
>> #define VECTYPE vector unsigned char
>> #define SPLAT(p) vec_splat(vec_ld(0, p), 0)
>> +#define ZERO_SPLAT vec_splat(vec_ld(0, 0), 0)
>> #define ALL_EQ(v1, v2) vec_all_eq(v1, v2)
>> /* altivec.h may redefine the bool macro as vector type.
>> * Reset it to POSIX semantics. */
>> @@ -462,10 +463,12 @@ void hexdump(const char *buf, FILE *fp, const char
>> *prefix, size_t size);
>> #include <emmintrin.h>
>> #define VECTYPE __m128i
>> #define SPLAT(p) _mm_set1_epi8(*(p))
>> +#define ZERO_SPLAT _mm_setzero_si128()
>> #define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF)
>> #else
>> #define VECTYPE unsigned long
>> #define SPLAT(p) (*(p) * (~0UL / 255))
>> +#define ZERO_SPLAT 0x0UL
>> #define ALL_EQ(v1, v2) ((v1) == (v2))
>> #endif
>
> C trivia of the day: this can be written simply as
>
> (VECTYPE) {0}
you are the first who mentions this ;-)
respin?
Peter
