Remove widen_plus/minus_expr tree codes

This patch removes the old widen plus/minus tree codes which have been
replaced by internal functions.

2023-06-05  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	    Joel Hutton  <joel.hutton@arm.com>

gcc/ChangeLog:

	* doc/generic.texi: Remove old tree codes.
	* expr.cc (expand_expr_real_2): Remove old tree code cases.
	* gimple-pretty-print.cc (dump_binary_rhs): Likewise.
	* optabs-tree.cc (optab_for_tree_code): Likewise.
	(supportable_half_widening_operation): Likewise.
	* tree-cfg.cc (verify_gimple_assign_binary): Likewise.
	* tree-inline.cc (estimate_operator_cost): Likewise.
	(op_symbol_code): Likewise.
	* tree-vect-data-refs.cc (vect_get_smallest_scalar_type): Likewise.
	(vect_analyze_data_ref_accesses): Likewise.
	* tree-vect-generic.cc (expand_vector_operations_1): Likewise.
	* cfgexpand.cc (expand_debug_expr): Likewise.
	* tree-vect-stmts.cc (vectorizable_conversion): Likewise.
	(supportable_widening_operation): Likewise.
	* gimple-range-op.cc (gimple_range_op_handler::maybe_non_standard):
	Likewise.
	* optabs.def (vec_widen_ssubl_hi_optab, vec_widen_ssubl_lo_optab,
	vec_widen_saddl_hi_optab, vec_widen_saddl_lo_optab,
	vec_widen_usubl_hi_optab, vec_widen_usubl_lo_optab,
	vec_widen_uaddl_hi_optab, vec_widen_uaddl_lo_optab): Remove optabs.
	* tree-pretty-print.cc (dump_generic_node): Remove tree code definition.
	* tree.def (WIDEN_PLUS_EXPR, WIDEN_MINUS_EXPR, VEC_WIDEN_PLUS_HI_EXPR,
	VEC_WIDEN_PLUS_LO_EXPR, VEC_WIDEN_MINUS_HI_EXPR,
	VEC_WIDEN_MINUS_LO_EXPR): Likewise.

1 files changed, 0 insertions, 27 deletions

diff --git a/gcc/doc/generic.texi b/gcc/doc/generic.texi
index 5e36dac..3f9bddd 100644
--- a/gcc/doc/generic.texi
+++ b/gcc/doc/generic.texi
@@ -1943,33 +1943,6 @@ vector of @code{N/2} subtractions.  In the case of
 vector are subtracted from the odd @code{N/2} of the first to produce the
 vector of @code{N/2} subtractions.
 
-@item VEC_WIDEN_PLUS_HI_EXPR
-@itemx VEC_WIDEN_PLUS_LO_EXPR
-These nodes represent widening vector addition of the high and low parts of
-the two input vectors, respectively.  Their operands are vectors that contain
-the same number of elements (@code{N}) of the same integral type. The result
-is a vector that contains half as many elements, of an integral type whose size
-is twice as wide.  In the case of @code{VEC_WIDEN_PLUS_HI_EXPR} the high
-@code{N/2} elements of the two vectors are added to produce the vector of
-@code{N/2} products.  In the case of @code{VEC_WIDEN_PLUS_LO_EXPR} the low
-@code{N/2} elements of the two vectors are added to produce the vector of
-@code{N/2} products.
-
-@item VEC_WIDEN_MINUS_HI_EXPR
-@itemx VEC_WIDEN_MINUS_LO_EXPR
-These nodes represent widening vector subtraction of the high and low parts of
-the two input vectors, respectively.  Their operands are vectors that contain
-the same number of elements (@code{N}) of the same integral type. The high/low
-elements of the second vector are subtracted from the high/low elements of the
-first. The result is a vector that contains half as many elements, of an
-integral type whose size is twice as wide.  In the case of
-@code{VEC_WIDEN_MINUS_HI_EXPR} the high @code{N/2} elements of the second
-vector are subtracted from the high @code{N/2} of the first to produce the
-vector of @code{N/2} products.  In the case of
-@code{VEC_WIDEN_MINUS_LO_EXPR} the low @code{N/2} elements of the second
-vector are subtracted from the low @code{N/2} of the first to produce the
-vector of @code{N/2} products.
-
 @item VEC_UNPACK_HI_EXPR
 @itemx VEC_UNPACK_LO_EXPR
 These nodes represent unpacking of the high and low parts of the input vector,