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author | Rong Xu <xur@google.com> | 2014-07-21 16:47:22 -0700 |
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committer | Rong Xu <xur@google.com> | 2014-07-29 15:31:03 -0700 |
commit | 38a8aecfb882072900434499696b5c32a2274515 (patch) | |
tree | 2aac97f0ae24b03cd98c1a06e989c031c173f889 /gcc-4.9/gcc/doc/md.texi | |
parent | c231900e5dcc14d8296bd9f62b45997a49d4d5e7 (diff) | |
download | toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.tar.gz toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.tar.bz2 toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.zip |
[4.9] Switch gcc-4.9 to use google/gcc-4_9 branch.
This source drop uses svn version r212828 of google/gcc-4.9 branch.
We also cherry-picked r213062, r213063 and r213064 to fix windows
build issues.
All gcc-4.9 patches before July 3rd are ported to google/gcc-4.9.
The following prior commits has not been merged to google branch yet.
(They are included in this commit).
e7af147f979e657fe2df00808e5b4319b0e088c6,
baf87df3cb2683649ba7e9872362a7e721117c23, and
c231900e5dcc14d8296bd9f62b45997a49d4d5e7.
Change-Id: I4bea3ea470387ff751c2be4cb0d4a12059b9299b
Diffstat (limited to 'gcc-4.9/gcc/doc/md.texi')
-rw-r--r-- | gcc-4.9/gcc/doc/md.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/doc/md.texi b/gcc-4.9/gcc/doc/md.texi index e2fe11b32..8e30aca94 100644 --- a/gcc-4.9/gcc/doc/md.texi +++ b/gcc-4.9/gcc/doc/md.texi @@ -4844,6 +4844,16 @@ wider mode, is computed and added to operand 3. Operand 3 is of a mode equal or wider than the mode of the product. The result is placed in operand 0, which is of the same mode as operand 3. +@cindex @code{ssad@var{m}} instruction pattern +@item @samp{ssad@var{m}} +@cindex @code{usad@var{m}} instruction pattern +@item @samp{usad@var{m}} +Compute the sum of absolute differences of two signed/unsigned elements. +Operand 1 and operand 2 are of the same mode. Their absolute difference, which +is of a wider mode, is computed and added to operand 3. Operand 3 is of a mode +equal or wider than the mode of the absolute difference. The result is placed +in operand 0, which is of the same mode as operand 3. + @cindex @code{ssum_widen@var{m3}} instruction pattern @item @samp{ssum_widen@var{m3}} @cindex @code{usum_widen@var{m3}} instruction pattern |