On 10/08/2011 08:43 AM, Jakub Jelinek wrote:
> (define_expand "avx2_gathersi"
> - [(set (match_operand:VEC_GATHER_MODE 0 "register_operand" "")
> - (unspec:VEC_GATHER_MODE
> - [(match_operand:VEC_GATHER_MODE 1 "register_operand" "")
> -(match_operand: 2 "memory_operand" "")
> -
On Sun, Oct 09, 2011 at 12:55:40PM +0200, Uros Bizjak wrote:
> About memory - can't we use (mem:BLK (match_operand:P
> "register_operand" "r")) here?
I don't think it is sufficient.
Consider e.g. _mm_i32gather_pd (NULL, index, 1); where index
is initialized from loading consecutive (32-bit) double
On Sat, Oct 8, 2011 at 5:43 PM, Jakub Jelinek wrote:
> The AVX2 docs say that the insns will #UD if any of the mask, src and index
> registers are the same, but e.g. on
> #include
>
> __m256 m;
> float f[1024];
>
> __m256
> foo (void)
> {
> __m256i mi = (__m256i) m;
> return _mm256_mask_i32gat
Hi!
The AVX2 docs say that the insns will #UD if any of the mask, src and index
registers are the same, but e.g. on
#include
__m256 m;
float f[1024];
__m256
foo (void)
{
__m256i mi = (__m256i) m;
return _mm256_mask_i32gather_ps (m, f, mi, m, 4);
}
which is IMHO valid and should for m being
