[Bug target/100009] [9 Regression] -march=native doesn't work on tigerlake
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19 Richard Biener changed: What|Removed |Added Resolution|--- |FIXED Status|NEW |RESOLVED --- Comment #6 from Richard Biener --- So fixed (hopefully).
[Bug target/100009] [9 Regression] -march=native doesn't work on tigerlake
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19 --- Comment #5 from Hongtao.liu --- (In reply to Hongtao.liu from comment #3) > > Response from Jim Wilson: > > Looks like a bug in gcc-9. tigerlake was added to > > gcc/config/i386/driver-i386.c but not to the arch_names_table in i386.c. I > > would suggest filing a bug report. I don't think there is a way to > > workaround this. It needs to be fixed in the gcc source tree. > > Oops, > will backport r10-2664-ga9fcfec30f70c30883f53d4b1bd533fbea0e9fb2 (tigerlake > part) to gcc9. Fixed by r9-9351
[Bug target/100009] [9 Regression] -march=native doesn't work on tigerlake
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19 --- Comment #4 from Hongtao.liu --- > Oops, > will backport r10-2664-ga9fcfec30f70c30883f53d4b1bd533fbea0e9fb2 (tigerlake > part) to gcc9. PTA_AVX512VP2INTERSECT is enabled in GCC10, don't plan to backport to gcc9, so in GCC9 -march=native wouldn't enable -mavx512vp2intersect, also kl and widekl.
[Bug target/100009] [9 Regression] -march=native doesn't work on tigerlake
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19 Hongtao.liu changed: What|Removed |Added CC||crazylht at gmail dot com --- Comment #3 from Hongtao.liu --- > Response from Jim Wilson: > Looks like a bug in gcc-9. tigerlake was added to > gcc/config/i386/driver-i386.c but not to the arch_names_table in i386.c. I > would suggest filing a bug report. I don't think there is a way to > workaround this. It needs to be fixed in the gcc source tree. Oops, will backport r10-2664-ga9fcfec30f70c30883f53d4b1bd533fbea0e9fb2 (tigerlake part) to gcc9.
[Bug target/100009] [9 Regression] -march=native doesn't work on tigerlake
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19 Richard Biener changed: What|Removed |Added Priority|P3 |P1 Target Milestone|--- |9.4 Summary|[9 Regression] |[9 Regression] |-march=native doesn't |-march=native doesn't work |recognize tigerlake |on tigerlake --- Comment #2 from Richard Biener --- Looking at the backport it looks like -march=native on a tigerlake system will expand to -march=tigerlake but that's not recognized later since the required support is missing.
