[Bug c/65077] memcpy generates incorrect code with floating point numbers and -O1

[anders.blomdell at control dot lth.se]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65077

--- Comment #3 from anders.blomdell at control dot lth.se ---
Created attachment 34778
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34778&action=edit
Shell-script for testing flag variations