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authorRichard Biener <rguenther@suse.de>2024-05-06 12:03:09 +0200
committerRichard Biener <rguenther@suse.de>2024-05-07 08:24:04 +0200
commitd0d6dcc019cd32eebf85d625f56e0f7573938319 (patch)
tree26c33a7eeac2b8bfd845c4b15f6847edff2e7e80 /gcc/tree-vect-stmts.cc
parent79649a5dcd81bc05c0ba591068c9075de43bd417 (diff)
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tree-optimization/114921 - _Float16 -> __bf16 isn't noop fixup
The following further strengthens the check which convert expressions we allow to vectorize as simple copy by resorting to tree_nop_conversion_p on the vector components. PR tree-optimization/114921 * tree-vect-stmts.cc (vectorizable_assignment): Use tree_nop_conversion_p to identify converts we can vectorize with a simple assignment.
Diffstat (limited to 'gcc/tree-vect-stmts.cc')
-rw-r--r--gcc/tree-vect-stmts.cc6
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index 7e57196..21e8fe9 100644
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -5957,15 +5957,15 @@ vectorizable_assignment (vec_info *vinfo,
/* We can handle VIEW_CONVERT conversions that do not change the number
of elements or the vector size or other conversions when the component
- mode keeps the same. */
+ types are nop-convertible. */
if (!vectype_in
|| maybe_ne (TYPE_VECTOR_SUBPARTS (vectype_in), nunits)
|| (code == VIEW_CONVERT_EXPR
&& maybe_ne (GET_MODE_SIZE (TYPE_MODE (vectype)),
GET_MODE_SIZE (TYPE_MODE (vectype_in))))
|| (CONVERT_EXPR_CODE_P (code)
- && (TYPE_MODE (TREE_TYPE (vectype))
- != TYPE_MODE (TREE_TYPE (vectype_in)))))
+ && !tree_nop_conversion_p (TREE_TYPE (vectype),
+ TREE_TYPE (vectype_in))))
return false;
if (VECTOR_BOOLEAN_TYPE_P (vectype) != VECTOR_BOOLEAN_TYPE_P (vectype_in))