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| author | Ira Rosen <ira.rosen@linaro.org> | 2011-10-18 09:39:04 +0000 |
|---|---|---|
| committer | Ira Rosen <irar@gcc.gnu.org> | 2011-10-18 09:39:04 +0000 |
| commit | 36ba4aaedc8507aa7f66add20d92b65df3b8faff (patch) | |
| tree | 003e1d024145ae0b6a8fe049fd43e175358d9b1e /gcc/doc | |
| parent | d355361573c6be211721cc5c945dd5cecdd33c6b (diff) | |
| download | gcc-36ba4aaedc8507aa7f66add20d92b65df3b8faff.zip gcc-36ba4aaedc8507aa7f66add20d92b65df3b8faff.tar.gz gcc-36ba4aaedc8507aa7f66add20d92b65df3b8faff.tar.bz2 | |
md.texi (vec_widen_ushiftl_hi, [...]): Document.
* doc/md.texi (vec_widen_ushiftl_hi, vec_widen_ushiftl_lo,
vec_widen_sshiftl_hi, vec_widen_sshiftl_lo): Document.
* tree-pretty-print.c (dump_generic_node): Handle WIDEN_LSHIFT_EXPR,
VEC_WIDEN_LSHIFT_HI_EXPR and VEC_WIDEN_LSHIFT_LO_EXPR.
(op_code_prio): Likewise.
(op_symbol_code): Handle WIDEN_LSHIFT_EXPR.
* optabs.c (optab_for_tree_code): Handle
VEC_WIDEN_LSHIFT_HI_EXPR and VEC_WIDEN_LSHIFT_LO_EXPR.
(init-optabs): Initialize optab codes for vec_widen_u/sshiftl_hi/lo.
* optabs.h (enum optab_index): Add OTI_vec_widen_u/sshiftl_hi/lo.
* genopinit.c (optabs): Initialize the new optabs.
* expr.c (expand_expr_real_2): Handle
VEC_WIDEN_LSHIFT_HI_EXPR and VEC_WIDEN_LSHIFT_LO_EXPR.
* gimple-pretty-print.c (dump_binary_rhs): Likewise.
* tree-vectorizer.h (NUM_PATTERNS): Increase to 8.
* tree.def (WIDEN_LSHIFT_EXPR, VEC_WIDEN_LSHIFT_HI_EXPR,
VEC_WIDEN_LSHIFT_LO_EXPR): New.
* cfgexpand.c (expand_debug_expr): Handle new tree codes.
* tree-vect-patterns.c (vect_vect_recog_func_ptrs): Add
vect_recog_widen_shift_pattern.
(vect_handle_widen_mult_by_const): Rename...
(vect_handle_widen_op_by_const): ...to this. Handle shifts.
Add a new argument, update documentation.
(vect_recog_widen_mult_pattern): Assume that only second
operand can be constant. Update call to
vect_handle_widen_op_by_const.
(vect_recog_over_widening_pattern): Fix typo.
(vect_recog_widen_shift_pattern): New.
* tree-vect-stmts.c (vectorizable_type_promotion): Handle
widening shifts.
(supportable_widening_operation): Likewise.
* tree-inline.c (estimate_operator_cost): Handle new tree codes.
* tree-vect-generic.c (expand_vector_operations_1): Likewise.
* tree-cfg.c (verify_gimple_assign_binary): Likewise.
* config/arm/neon.md (neon_vec_<US>shiftl_<mode>): New.
(vec_widen_<US>shiftl_lo_<mode>, neon_vec_<US>shiftl_hi_<mode>,
vec_widen_<US>shiftl_hi_<mode>, neon_vec_<US>shift_left_<mode>):
Likewise.
* config/arm/predicates.md (const_neon_scalar_shift_amount_operand):
New.
* config/arm/iterators.md (V_innermode): New.
* tree-vect-slp.c (vect_build_slp_tree): Require same shift operand
for widening shift.
From-SVN: r180128
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/md.texi | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index 68a5548..4a0bcfa 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -4272,6 +4272,17 @@ are vectors with N signed/unsigned elements of size S@. Multiply the high/low elements of the two vectors, and put the N/2 products of size 2*S in the output vector (operand 0). +@cindex @code{vec_widen_ushiftl_hi_@var{m}} instruction pattern +@cindex @code{vec_widen_ushiftl_lo_@var{m}} instruction pattern +@cindex @code{vec_widen_sshiftl_hi_@var{m}} instruction pattern +@cindex @code{vec_widen_sshiftl_lo_@var{m}} instruction pattern +@item @samp{vec_widen_ushiftl_hi_@var{m}}, @samp{vec_widen_ushiftl_lo_@var{m}} +@itemx @samp{vec_widen_sshiftl_hi_@var{m}}, @samp{vec_widen_sshiftl_lo_@var{m}} +Signed/Unsigned widening shift left. The first input (operand 1) is a vector +with N signed/unsigned elements of size S@. Operand 2 is a constant. Shift +the high/low elements of operand 1, and put the N/2 results of size 2*S in the +output vector (operand 0). + @cindex @code{mulhisi3} instruction pattern @item @samp{mulhisi3} Multiply operands 1 and 2, which have mode @code{HImode}, and store |