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tree-optimization/111156 - properly dissolve SLP only groups

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The following fixes the omission of failing to look at pattern
stmts when we need to dissolve SLP only groups.

	PR tree-optimization/111156
	* tree-vect-loop.cc (vect_dissolve_slp_only_groups): Look
	at the pattern stmt if any.
This commit is contained in:
Richard Biener 2024-02-15 13:41:25 +01:00
parent 2acf478bf1
commit b312cf21af
1 changed files with 2 additions and 1 deletions
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3
gcc/tree-vect-loop.cc
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@ -2551,7 +2551,8 @@ vect_dissolve_slp_only_groups (loop_vec_info loop_vinfo)
FOR_EACH_VEC_ELT (datarefs, i, dr)
{
gcc_assert (DR_REF (dr));
stmt_vec_info stmt_info = loop_vinfo->lookup_stmt (DR_STMT (dr));
stmt_vec_info stmt_info
= vect_stmt_to_vectorize (loop_vinfo->lookup_stmt (DR_STMT (dr)));
/* Check if the load is a part of an interleaving chain. */
if (STMT_VINFO_GROUPED_ACCESS (stmt_info))