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Do not consider overrun for VMAT_ELEMENTWISE

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When we classify an SLP access as VMAT_ELEMENTWISE we still consider
overrun - the reset of it is later overwritten.  The following fixes
this, resolving a few RISC-V FAILs with --param vect-force-slp=1.

	* tree-vect-stmts.cc (get_group_load_store_type): For
	VMAT_ELEMENTWISE there's no overrun.
This commit is contained in:
Richard Biener 2024-11-13 11:32:13 +01:00 committed by Richard Biener
parent 72df175c93
commit 6d85a0bc2e
1 changed files with 2 additions and 2 deletions
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4
gcc/tree-vect-stmts.cc
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@ -2093,7 +2093,6 @@ get_group_load_store_type (vec_info *vinfo, stmt_vec_info stmt_info,
if (SLP_TREE_LANES (slp_node) == 1)
{
*memory_access_type = VMAT_ELEMENTWISE;
overrun_p = false;
if (dump_enabled_p ())
dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
"single-element interleaving not supported "
@ -2110,7 +2109,8 @@ get_group_load_store_type (vec_info *vinfo, stmt_vec_info stmt_info,
}
}
overrun_p = loop_vinfo && gap != 0;
overrun_p = (loop_vinfo && gap != 0
&& *memory_access_type != VMAT_ELEMENTWISE);
if (overrun_p && vls_type != VLS_LOAD)
{
dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,