diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/doc/md.texi | 46 | ||||
| -rw-r--r-- | gcc/optabs.def | 6 |
2 files changed, 25 insertions, 27 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index a925911..7001daf 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -5760,15 +5760,14 @@ for (i = 0; i < LEN + BIAS; i++) operand0 += operand2[i]; @end smallexample -@cindex @code{sdot_prod@var{m}} instruction pattern -@item @samp{sdot_prod@var{m}} - -Compute the sum of the products of two signed elements. -Operand 1 and operand 2 are of the same mode. Their -product, 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 product. The -result is placed in operand 0, which is of the same mode as operand 3. -@var{m} is the mode of operand 1 and operand 2. +@cindex @code{sdot_prod@var{m}@var{n}} instruction pattern +@item @samp{sdot_prod@var{m}@var{n}} + +Multiply operand 1 by operand 2 without loss of precision, given that +both operands contain signed elements. Add each product to the overlapping +element of operand 3 and store the result in operand 0. Operands 0 and 3 +have mode @var{m} and operands 1 and 2 have mode @var{n}, with @var{n} +having narrower elements than @var{m}. Semantically the expressions perform the multiplication in the following signs @@ -5778,15 +5777,14 @@ sdot<signed op0, signed op1, signed op2, signed op3> == @dots{} @end smallexample -@cindex @code{udot_prod@var{m}} instruction pattern -@item @samp{udot_prod@var{m}} +@cindex @code{udot_prod@var{m}@var{n}} instruction pattern +@item @samp{udot_prod@var{m}@var{n}} -Compute the sum of the products of two unsigned elements. -Operand 1 and operand 2 are of the same mode. Their -product, 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 product. The -result is placed in operand 0, which is of the same mode as operand 3. -@var{m} is the mode of operand 1 and operand 2. +Multiply operand 1 by operand 2 without loss of precision, given that +both operands contain unsigned elements. Add each product to the overlapping +element of operand 3 and store the result in operand 0. Operands 0 and 3 +have mode @var{m} and operands 1 and 2 have mode @var{n}, with @var{n} +having narrower elements than @var{m}. Semantically the expressions perform the multiplication in the following signs @@ -5796,14 +5794,14 @@ udot<unsigned op0, unsigned op1, unsigned op2, unsigned op3> == @dots{} @end smallexample -@cindex @code{usdot_prod@var{m}} instruction pattern -@item @samp{usdot_prod@var{m}} +@cindex @code{usdot_prod@var{m}@var{n}} instruction pattern +@item @samp{usdot_prod@var{m}@var{n}} Compute the sum of the products of elements of different signs. -Operand 1 must be unsigned and operand 2 signed. Their -product, 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 product. The -result is placed in operand 0, which is of the same mode as operand 3. -@var{m} is the mode of operand 1 and operand 2. +Multiply operand 1 by operand 2 without loss of precision, given that operand 1 +is unsigned and operand 2 is signed. Add each product to the overlapping +element of operand 3 and store the result in operand 0. Operands 0 and 3 have +mode @var{m} and operands 1 and 2 have mode @var{n}, with @var{n} having +narrower elements than @var{m}. Semantically the expressions perform the multiplication in the following signs diff --git a/gcc/optabs.def b/gcc/optabs.def index 58a9394..ba86014 100644 --- a/gcc/optabs.def +++ b/gcc/optabs.def @@ -110,6 +110,9 @@ OPTAB_CD(mask_scatter_store_optab, "mask_scatter_store$a$b") OPTAB_CD(mask_len_scatter_store_optab, "mask_len_scatter_store$a$b") OPTAB_CD(vec_extract_optab, "vec_extract$a$b") OPTAB_CD(vec_init_optab, "vec_init$a$b") +OPTAB_CD (sdot_prod_optab, "sdot_prod$I$a$b") +OPTAB_CD (udot_prod_optab, "udot_prod$I$a$b") +OPTAB_CD (usdot_prod_optab, "usdot_prod$I$a$b") OPTAB_CD (while_ult_optab, "while_ult$a$b") @@ -413,10 +416,7 @@ OPTAB_D (savg_floor_optab, "avg$a3_floor") OPTAB_D (uavg_floor_optab, "uavg$a3_floor") OPTAB_D (savg_ceil_optab, "avg$a3_ceil") OPTAB_D (uavg_ceil_optab, "uavg$a3_ceil") -OPTAB_D (sdot_prod_optab, "sdot_prod$I$a") OPTAB_D (ssum_widen_optab, "widen_ssum$I$a3") -OPTAB_D (udot_prod_optab, "udot_prod$I$a") -OPTAB_D (usdot_prod_optab, "usdot_prod$I$a") OPTAB_D (usum_widen_optab, "widen_usum$I$a3") OPTAB_D (usad_optab, "usad$I$a") OPTAB_D (ssad_optab, "ssad$I$a") |