[Bug rtl-optimization/91460] gcc -mpreferred-vector-width=256 is slower than -mpreferred-vector-width=128 for some loops

2019-08-15 Thread hjl.tools at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91460 H.J. Lu changed: What|Removed |Added Target||i386 Status|UNCONFIRMED

[Bug rtl-optimization/91460] gcc -mpreferred-vector-width=256 is slower than -mpreferred-vector-width=128 for some loops

2019-08-15 Thread hjl.tools at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91460 H.J. Lu changed: What|Removed |Added CC||crazylht at gmail dot com --- Comment #1 from