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| author | Kewen Lin <linkw@linux.ibm.com> | 2023-07-17 03:44:59 -0500 |
|---|---|---|
| committer | Kewen Lin <linkw@linux.ibm.com> | 2023-07-17 03:44:59 -0500 |
| commit | 081c623ca88dc53abe34b5f5661e79fcde800cef (patch) | |
| tree | 9d0b7d6b4f43a02a9a95c4b5aee37dcf28a27edc | |
| parent | 3228e5c078ed2b505e4ad238b09c1817b38f9cfb (diff) | |
| download | gcc-081c623ca88dc53abe34b5f5661e79fcde800cef.zip gcc-081c623ca88dc53abe34b5f5661e79fcde800cef.tar.gz gcc-081c623ca88dc53abe34b5f5661e79fcde800cef.tar.bz2 | |
vect: Initialize new_temp to avoid false positive warning [PR110652]
As PR110652 and its duplicate PRs show, there could be one
build error
error: 'new_temp' may be used uninitialized
for some build configurations. It's a false positive warning
(or error at -Werror), but in order to make the build succeed,
this patch is to initialize the reported variable 'new_temp'
as NULL_TREE.
PR tree-optimization/110652
gcc/ChangeLog:
* tree-vect-stmts.cc (vectorizable_load): Initialize new_temp as
NULL_TREE.
| -rw-r--r-- | gcc/tree-vect-stmts.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc index c08d0ef..cb86d54 100644 --- a/gcc/tree-vect-stmts.cc +++ b/gcc/tree-vect-stmts.cc @@ -9297,7 +9297,8 @@ vectorizable_load (vec_info *vinfo, class loop *containing_loop = gimple_bb (stmt_info->stmt)->loop_father; bool nested_in_vect_loop = false; tree elem_type; - tree new_temp; + /* Avoid false positive uninitialized warning, see PR110652. */ + tree new_temp = NULL_TREE; machine_mode mode; tree dummy; tree dataref_ptr = NULL_TREE; |