From: Richard Biener <rguenther@suse.de>
Date: Thu, 29 Jun 2023 08:23:29 +0000 (+0200)
Subject: tree-optimization/110460 - fend off vector types from vectorizer
X-Git-Tag: basepoints/gcc-15~7953
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cd23ed2119120bd7b710fbe679fdfcb8f4461800;p=thirdparty%2Fgcc.git

tree-optimization/110460 - fend off vector types from vectorizer

The following makes fending off existing vector types from vectorization
also apply to word_mode vector types.  I've chosen to add a positive
list of allowed scalar types here for clarity.

	PR tree-optimization/110460
	* tree-vect-stmts.cc (get_related_vectype_for_scalar_type):
	Only allow integral, pointer and scalar float type scalar_type.
---

diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index d642d3c257f8..68faa8ead39d 100644
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -12174,8 +12174,11 @@ get_related_vectype_for_scalar_type (machine_mode prevailing_mode,
   machine_mode simd_mode;
   tree vectype;
 
-  if (!is_int_mode (TYPE_MODE (scalar_type), &inner_mode)
-      && !is_float_mode (TYPE_MODE (scalar_type), &inner_mode))
+  if ((!INTEGRAL_TYPE_P (scalar_type)
+       && !POINTER_TYPE_P (scalar_type)
+       && !SCALAR_FLOAT_TYPE_P (scalar_type))
+      || (!is_int_mode (TYPE_MODE (scalar_type), &inner_mode)
+	  && !is_float_mode (TYPE_MODE (scalar_type), &inner_mode)))
     return NULL_TREE;
 
   unsigned int nbytes = GET_MODE_SIZE (inner_mode);