From: Kevin Lee <kevinl@rivosinc.com>
Date: Tue, 18 Apr 2023 18:42:17 +0000 (-0600)
Subject: vect: Verify that GET_MODE_UNITS is greater than one for vect_grouped_store_supported
X-Git-Tag: basepoints/gcc-15~10090
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c9d7fbdf3e752be40c34855741e7c27121315744;p=thirdparty%2Fgcc.git

vect: Verify that GET_MODE_UNITS is greater than one for vect_grouped_store_supported

gcc/ChangeLog:

	* tree-vect-data-refs.cc (vect_grouped_store_supported): Add new
	condition.
---

diff --git a/gcc/tree-vect-data-refs.cc b/gcc/tree-vect-data-refs.cc
index 8daf7bd7dd34..c03ffb3aaf1c 100644
--- a/gcc/tree-vect-data-refs.cc
+++ b/gcc/tree-vect-data-refs.cc
@@ -5399,6 +5399,8 @@ vect_grouped_store_supported (tree vectype, unsigned HOST_WIDE_INT count)
 	  poly_uint64 nelt = GET_MODE_NUNITS (mode);
 
 	  /* The encoding has 2 interleaved stepped patterns.  */
+	  if(!multiple_p (nelt, 2))
+	    return false;
 	  vec_perm_builder sel (nelt, 2, 3);
 	  sel.quick_grow (6);
 	  for (i = 0; i < 3; i++)