[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 Martin Liška changed: What|Removed |Added CC||marxin at gcc dot gnu.org --- Comment

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 Andreas Krebbel changed: What|Removed |Added Status|RESOLVED|REOPENED Last reconfirmed|

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 Jeffrey A. Law changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED CC|

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 --- Comment #12 from Vladimir Makarov --- Author: vmakarov Date: Thu Dec 7 17:50:54 2017 New Revision: 255471 URL: https://gcc.gnu.org/viewcvs?rev=255471=gcc=rev Log: 2017-12-07 Vladimir Makarov PR target/83252

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 --- Comment #11 from Vladimir Makarov --- I am still working on this PR. I hope to fix it on this week or on the next one (the patch will need a lot of testing).

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 --- Comment #10 from Vladimir Makarov --- Author: vmakarov Date: Wed Nov 29 22:19:25 2017 New Revision: 255258 URL: https://gcc.gnu.org/viewcvs?rev=255258=gcc=rev Log: 2017-11-29 Vladimir Makarov PR

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 --- Comment #9 from Vladimir Makarov --- (In reply to Andreas Krebbel from comment #8) > Hi Vladimir. What do you think about the additional patch? Andreas, sorry for the delay with the answer. The patch looks reasonable for me. If your

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 Andreas Krebbel changed: What|Removed |Added Priority|P3 |P2 --- Comment #8 from Andreas

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 --- Comment #7 from Andreas Krebbel --- Created attachment 41699 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41699=edit Additional changes required ontop of the proposed patch Changes which might be required on-top of your patch. Your

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 --- Comment #6 from Vladimir Makarov --- Hi, Andreas. Could you check the patch I attached on your bigger test case. If it works, I will commit it.

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 --- Comment #5 from Vladimir Makarov --- Created attachment 41686 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41686=edit A proposed patch

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 --- Comment #4 from Andreas Krebbel --- Created attachment 41609 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41609=edit Reduced testcase gcc -O3 -march=z900 t.c r33 is marked as unused in process_bb_lives for the compare (insn 10),

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 --- Comment #3 from Vladimir Makarov --- (In reply to Andreas Krebbel from comment #0) > Created attachment 41383 [details] > Experimental patch Andreas, thank you for working on the issue. You are right. The hard reg in the clobber should be

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 --- Comment #2 from Andreas Krebbel --- I think this is a different problem. In my case the reason for adding an invalid rematerialization appears to be that the live ranges of an hard registers are not correctly calculated. I've just verified

[Bug rtl-optimization/80818] LRA clobbers live hard reg clobbered during rematerialization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80818 ktkachov at gcc dot gnu.org changed: What|Removed |Added CC||ktkachov at gcc dot gnu.org