[Bug tree-optimization/119917] [Optimization Opportunity] Inefficient code generation for multiplication overflow detection with explicit zero checks

[a1343922569 at outlook dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119917

--- Comment #1 from Jin Haobo <a1343922569 at outlook dot com> ---
Created attachment 61192
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61192&action=edit
test.cpp source code

test.cpp source code