[Bug target/48743] -march=native mis-detects AMD K6-2+ / K6-3 as Athlon - compiled C fails with "illegal instruction"

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48743 --- Comment #3 from Zuxy 2011-05-12 08:27:56 UTC --- Created attachment 24233 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24233 Proposed patch For a brief time AMD produced K6-2+ and K6-3+ processors, targeting mobile market. These proce

[Bug target/48227] "rep ret" generated for -march=core2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48227 --- Comment #3 from Zuxy 2011-04-06 13:42:21 UTC --- (In reply to comment #1) > A good question is does it make a difference in actual performance numbers, it > might still make a positive difference. Until someone tries it out and sees > the di

[Bug target/48227] New: "rep ret" generated for -march=core2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48227 Summary: "rep ret" generated for -march=core2 Product: gcc Version: 4.5.4 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassig...@g