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| author | Alan Lawrence <alan.lawrence@arm.com> | 2014-11-14 10:48:34 +0000 |
|---|---|---|
| committer | Alan Lawrence <alalaw01@gcc.gnu.org> | 2014-11-14 10:48:34 +0000 |
| commit | 729ff76e2b7931d1106667e7f27001c5c0f624b8 (patch) | |
| tree | 11269bbc5bc8d4449b8484d7fccf11158c77490f /gcc/doc/md.texi | |
| parent | 8261494856f9478e0393d5bd9be26961d16f266f (diff) | |
| download | gcc-729ff76e2b7931d1106667e7f27001c5c0f624b8.zip gcc-729ff76e2b7931d1106667e7f27001c5c0f624b8.tar.gz gcc-729ff76e2b7931d1106667e7f27001c5c0f624b8.tar.bz2 | |
[Vectorizer]Make reductions-via-shifts and vec_shr_optab endianness-neutral
* optabs.c (shift_amt_for_vec_perm_mask): Remove code conditional on
BYTES_BIG_ENDIAN.
* tree-vect-loop.c (calc_vec_perm_mask_for_shift,
vect_create_epilog_for_reduction): Likewise.
* doc/md.texi (vec_shr_m): Clarify direction of shifting.
From-SVN: r217550
Diffstat (limited to 'gcc/doc/md.texi')
| -rw-r--r-- | gcc/doc/md.texi | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index 6404147..b8e5ac5 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -4798,7 +4798,7 @@ of a wider mode.) @cindex @code{vec_shr_@var{m}} instruction pattern @item @samp{vec_shr_@var{m}} -Whole vector right shift in bits. +Whole vector right shift in bits, i.e. towards element 0. Operand 1 is a vector to be shifted. Operand 2 is an integer shift amount in bits. Operand 0 is where the resulting shifted vector is stored. |