[Bug target/99531] [11 Regression] Performance regression since gcc 9 (argument passing / register allocation)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99531 --- Comment #12 from Oleg Endo --- (In reply to Oleg Endo from comment #11) > > This caused PR 115148 I absolutely lack the imagination to see the connection of the change in #c6 and PR 115148. This is the change in the output code that results in the problem on SH: .LVL108: bt/s.L178 ! mov #-1,r0 !, @@ -1832,36 +1830,39 @@ .byte .L215-.L190 .byte .L181-.L190 .LVL109: - .align 1 -.L192: .LBE111: .LBE110: .loc 1 234 9 .loc 1 234 14 + .align 1 +.L287: + .align 1 +.L288: Any ideas or suggestions are appreciated.
[Bug target/99531] [11 Regression] Performance regression since gcc 9 (argument passing / register allocation)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99531 Oleg Endo changed: What|Removed |Added CC||olegendo at gcc dot gnu.org --- Comment #11 from Oleg Endo --- (In reply to GCC Commits from comment #5) > The master branch has been updated by Vladimir Makarov > : > > https://gcc.gnu.org/g:a7acb6dca941db2b1c135107dac3a34a20650d5c > > commit r12-5944-ga7acb6dca941db2b1c135107dac3a34a20650d5c > Author: Vladimir N. Makarov > Date: Mon Dec 13 13:48:12 2021 -0500 > > [PR99531] Modify pseudo class cost calculation when processing move > involving the pseudo and a hard register > > Pseudo class calculated on the 1st iteration should not have a > special treatment in cost calculation when processing move involving > the pseudo and a hard register. > > gcc/ChangeLog: > > PR target/99531 > * ira-costs.c (record_operand_costs): Do not take pseudo class > calculated on the 1st iteration into account when processing move > involving the pseudo and a hard register. > > gcc/testsuite/ChangeLog: > > PR target/99531 > * gcc.target/i386/pr99531.c: New test. This caused PR 115148
[Bug target/99531] [11 Regression] Performance regression since gcc 9 (argument passing / register allocation)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99531 Richard Biener changed: What|Removed |Added Target Milestone|10.5|11.5 --- Comment #10 from Richard Biener --- GCC 10 branch is being closed.
