[Bug tree-optimization/96053] Miss optimization:Finding SLP sequences from reductions sometimes is better than finding from reduction chains

[zhoukaipeng3 at huawei dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96053

--- Comment #3 from Kaipeng Zhou <zhoukaipeng3 at huawei dot com> ---
Created attachment 48896
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48896&action=edit
Patch to add #pragma GCC no_reduc_chain