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Fixup reduction info on addsub SLP pattern 

gcc.dg/vect/pr96854.c shows we need to copy over reduction info
to the SLP pattern as already done for the complex patterns.

2021-06-25  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp-patterns.c (addsub_pattern::build): Copy
	STMT_VINFO_REDUC_DEF from the original representative.
This commit is contained in:
Richard Biener 2021-06-25 08:54:14 +02:00
parent c6c7ac0499
commit 05516402f8
1 changed files with 7 additions and 5 deletions
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12
gcc/tree-vect-slp-patterns.c
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@ -1577,11 +1577,13 @@ addsub_pattern::build (vec_info *vinfo)
(TREE_TYPE (gimple_assign_lhs (rep->stmt))));
gimple_call_set_nothrow (call, true);
gimple_set_bb (call, gimple_bb (rep->stmt));
SLP_TREE_REPRESENTATIVE (node) = vinfo->add_pattern_stmt (call, rep);
STMT_VINFO_RELEVANT (SLP_TREE_REPRESENTATIVE (node)) = vect_used_in_scope;
STMT_SLP_TYPE (SLP_TREE_REPRESENTATIVE (node)) = pure_slp;
STMT_VINFO_VECTYPE (SLP_TREE_REPRESENTATIVE (node)) = SLP_TREE_VECTYPE (node);
STMT_VINFO_SLP_VECT_ONLY_PATTERN (SLP_TREE_REPRESENTATIVE (node)) = true;
stmt_vec_info new_rep = vinfo->add_pattern_stmt (call, rep);
SLP_TREE_REPRESENTATIVE (node) = new_rep;
STMT_VINFO_RELEVANT (new_rep) = vect_used_in_scope;
STMT_SLP_TYPE (new_rep) = pure_slp;
STMT_VINFO_VECTYPE (new_rep) = SLP_TREE_VECTYPE (node);
STMT_VINFO_SLP_VECT_ONLY_PATTERN (new_rep) = true;
STMT_VINFO_REDUC_DEF (new_rep) = STMT_VINFO_REDUC_DEF (vect_orig_stmt (rep));
SLP_TREE_CODE (node) = ERROR_MARK;
SLP_TREE_LANE_PERMUTATION (node).release ();