[Bug rtl-optimization/114729] RISC-V SPEC2017 507.cactu excessive spillls with -fschedule-insns

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114729 --- Comment #11 from Jeffrey A. Law --- Yup. -fsched-verbose=99 is *very* verbose. But that's the point, to see all the gory details. It can be dialed down, but I've never done so myself. What stands out to me is this: ;;| Pressure

[Bug rtl-optimization/114729] RISC-V SPEC2017 507.cactu excessive spillls with -fschedule-insns

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114729 --- Comment #10 from Vineet Gupta --- Debug update -fsched-verbose=99 dumps (they are reay verbose) For the insn/regs under consideration, the canonical pre-scheduled sequence with ideal live-range (but non-ideal load-to-use delay) is

[Bug rtl-optimization/114729] RISC-V SPEC2017 507.cactu excessive spillls with -fschedule-insns

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114729 Vineet Gupta changed: What|Removed |Added Last reconfirmed|2024-04-15 00:00:00 |2024-4-16 --- Comment #9 from Vineet

[Bug rtl-optimization/114729] RISC-V SPEC2017 507.cactu excessive spillls with -fschedule-insns

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114729 --- Comment #8 from Jeffrey A. Law --- I didn't even notice you had that testcase attached! I haven't done a deep dive, but the first thing that jumps out is the number of instructions in the ready queue, most likely because of the addressing

[Bug rtl-optimization/114729] RISC-V SPEC2017 507.cactu excessive spillls with -fschedule-insns

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114729 --- Comment #7 from Jeffrey A. Law --- Yes, there are different algorithms. I looked at them a while back when we first noticed the problems with spilling and x264. There was very little difference for specint when we varied the algorithms.

[Bug rtl-optimization/114729] RISC-V SPEC2017 507.cactu excessive spillls with -fschedule-insns

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114729 Richard Biener changed: What|Removed |Added Target||riscv --- Comment #6 from Richard

[Bug rtl-optimization/114729] RISC-V SPEC2017 507.cactu excessive spillls with -fschedule-insns

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114729 JuzheZhong changed: What|Removed |Added CC||juzhe.zhong at rivai dot ai --- Comment

[Bug rtl-optimization/114729] RISC-V SPEC2017 507.cactu excessive spillls with -fschedule-insns

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114729 --- Comment #4 from Vineet Gupta --- (In reply to Jeffrey A. Law from comment #3) > Vineet, do we have this isolated enough that we know what function is most > affected and presumably the most impacted blocks? If so we can probably > start

[Bug rtl-optimization/114729] RISC-V SPEC2017 507.cactu excessive spillls with -fschedule-insns

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114729 Jeffrey A. Law changed: What|Removed |Added Last reconfirmed||2024-04-15

[Bug rtl-optimization/114729] RISC-V SPEC2017 507.cactu excessive spillls with -fschedule-insns

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114729 --- Comment #2 from Vineet Gupta --- FWIW -fsched-pressure is already default enabled for RISC-V.

[Bug rtl-optimization/114729] RISC-V SPEC2017 507.cactu excessive spillls with -fschedule-insns

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114729 Andrew Pinski changed: What|Removed |Added Keywords||missed-optimization, ra