[Bug target/115002] [14/15 regression] wide integer vector performance regression, x86, between gcc-14 and gcc-13 using target clones on skylake platform

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115002 Jakub Jelinek changed: What|Removed |Added Target Milestone|14.2|14.3 --- Comment #6 from Jakub Jelinek

[Bug target/115002] [14/15 regression] wide integer vector performance regression, x86, between gcc-14 and gcc-13 using target clones on skylake platform

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115002 --- Comment #5 from Haochen Jiang --- It seems that mainly caused by codesize increase in GCC14 since the actual instruction retired increase ratio is similar to the regression. Also, just like PR114987, I tried with GCC11, seems it gets the be

[Bug target/115002] [14/15 regression] wide integer vector performance regression, x86, between gcc-14 and gcc-13 using target clones on skylake platform

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115002 Richard Biener changed: What|Removed |Added Keywords||missed-optimization Target Milestone

[Bug target/115002] [14/15 regression] wide integer vector performance regression, x86, between gcc-14 and gcc-13 using target clones on skylake platform

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115002 --- Comment #4 from Colin Ian King --- Created attachment 58142 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58142&action=edit perf output of stress_vecwide_2048 for gcc-14 compiled code perf output of stress_vecwide_2048 for gcc-14 com

[Bug target/115002] [14/15 regression] wide integer vector performance regression, x86, between gcc-14 and gcc-13 using target clones on skylake platform

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115002 --- Comment #3 from Colin Ian King --- Created attachment 58141 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58141&action=edit perf output of stress_vecwide_2048 for gcc-13 compiled code perf output of stress_vecwide_2048 for gcc-13 com

[Bug target/115002] [14/15 regression] wide integer vector performance regression, x86, between gcc-14 and gcc-13 using target clones on skylake platform

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115002 --- Comment #2 from Colin Ian King --- Created attachment 58140 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58140&action=edit gcc-14 disassembly gcc-14 disassembly

[Bug target/115002] [14/15 regression] wide integer vector performance regression, x86, between gcc-14 and gcc-13 using target clones on skylake platform

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115002 --- Comment #1 from Colin Ian King --- Created attachment 58139 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58139&action=edit gcc-13 disassembly gcc-13 disassembly