[Bug target/100093] different behavior between -mtune=cpu_type and target_attribute (“arch=cputype”)

2021-04-22 Thread crazylht at gmail dot com via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100093 Hongtao.liu changed: What|Removed |Added Resolution|--- |FIXED Status|UNCONFIRMED

[Bug target/100093] different behavior between -mtune=cpu_type and target_attribute (“arch=cputype”)

2021-04-22 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100093 --- Comment #3 from CVS Commits --- The master branch has been updated by hongtao Liu : https://gcc.gnu.org/g:342de04d993beaa644d0b0087c20bef5dad5bf5f commit r12-78-g342de04d993beaa644d0b0087c20bef5dad5bf5f Author: liuhongt Date: Fri Apr

[Bug target/100093] different behavior between -mtune=cpu_type and target_attribute (“arch=cputype”)

2021-04-16 Thread crazylht at gmail dot com via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100093 --- Comment #2 from Hongtao.liu --- Created attachment 50611 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50611=edit tested patch waiting for GCC12. [i386] MASK_AVX256_SPLIT_UNALIGNED_STORE/LOAD should be cleared in

[Bug target/100093] different behavior between -mtune=cpu_type and target_attribute (“arch=cputype”)

2021-04-15 Thread crazylht at gmail dot com via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100093 --- Comment #1 from Hongtao.liu --- When ix86_tune_features[X86_TUNE_AVX256_UNALIGNED_LOAD/STORE_OPTIMAL] is false, GCC goes to set up the bit MASK_AVX256_SPLIT_UNALIGNED_LOAD/STORE, but when