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* [Bug target/7625] gcc pessimized 64-bit % operator on hppa2.0 [not found] <bug-7625-4@http.gcc.gnu.org/bugzilla/> @ 2012-01-29 23:06 ` steven at gcc dot gnu.org 2012-01-30 18:22 ` dave.anglin at bell dot net 2021-05-04 12:02 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 5+ messages in thread From: steven at gcc dot gnu.org @ 2012-01-29 23:06 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7625 Steven Bosscher <steven at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |steven at gcc dot gnu.org --- Comment #6 from Steven Bosscher <steven at gcc dot gnu.org> 2012-01-29 22:39:37 UTC --- Perhaps this should be closed as WONTFIX? ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/7625] gcc pessimized 64-bit % operator on hppa2.0 [not found] <bug-7625-4@http.gcc.gnu.org/bugzilla/> 2012-01-29 23:06 ` [Bug target/7625] gcc pessimized 64-bit % operator on hppa2.0 steven at gcc dot gnu.org @ 2012-01-30 18:22 ` dave.anglin at bell dot net 2021-05-04 12:02 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 5+ messages in thread From: dave.anglin at bell dot net @ 2012-01-30 18:22 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7625 --- Comment #7 from dave.anglin at bell dot net 2012-01-30 17:00:45 UTC --- On 1/29/2012 5:39 PM, steven at gcc dot gnu.org wrote: > Perhaps this should be closed as WONTFIX? This enhancement should be done. It appears both the 32 and 64-bit targets would benefit in using $$rem2U. The / operator is probably also pessimized. Dave ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/7625] gcc pessimized 64-bit % operator on hppa2.0 [not found] <bug-7625-4@http.gcc.gnu.org/bugzilla/> 2012-01-29 23:06 ` [Bug target/7625] gcc pessimized 64-bit % operator on hppa2.0 steven at gcc dot gnu.org 2012-01-30 18:22 ` dave.anglin at bell dot net @ 2021-05-04 12:02 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu.org @ 2021-05-04 12:02 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=7625 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEW ^ permalink raw reply [flat|nested] 5+ messages in thread
[parent not found: <bug-7625-1471@http.gcc.gnu.org/bugzilla/>]
* [Bug target/7625] gcc pessimized 64-bit % operator on hppa2.0 [not found] <bug-7625-1471@http.gcc.gnu.org/bugzilla/> @ 2006-04-10 19:49 ` steven at gcc dot gnu dot org 2006-04-10 20:17 ` dave at hiauly1 dot hia dot nrc dot ca 1 sibling, 0 replies; 5+ messages in thread From: steven at gcc dot gnu dot org @ 2006-04-10 19:49 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from steven at gcc dot gnu dot org 2006-04-10 19:49 ------- Boooooooiinngggggg....... Or, is anyone working on this? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7625 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/7625] gcc pessimized 64-bit % operator on hppa2.0 [not found] <bug-7625-1471@http.gcc.gnu.org/bugzilla/> 2006-04-10 19:49 ` steven at gcc dot gnu dot org @ 2006-04-10 20:17 ` dave at hiauly1 dot hia dot nrc dot ca 1 sibling, 0 replies; 5+ messages in thread From: dave at hiauly1 dot hia dot nrc dot ca @ 2006-04-10 20:17 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from dave at hiauly1 dot hia dot nrc dot ca 2006-04-10 20:17 ------- Subject: Re: gcc pessimized 64-bit % operator on hppa2.0 > Boooooooiinngggggg....... > > Or, is anyone working on this? I'm not. Note that the HP code is using 64-bit registers and instructions in 32-bit mode for the call to $$rem2. I think doing this in GCC is going to be tricky as normal calls only save the the least significant 32-bits. Maybe we could somehow confine 64-bit register values to the call clobbered registers. Normally register pairs are used for 64-bit values. In 64-bit mode, we can probably easily benefit from using the new 64-bit millicode. Dave -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7625 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-05-04 12:02 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-7625-4@http.gcc.gnu.org/bugzilla/>
2012-01-29 23:06 ` [Bug target/7625] gcc pessimized 64-bit % operator on hppa2.0 steven at gcc dot gnu.org
2012-01-30 18:22 ` dave.anglin at bell dot net
2021-05-04 12:02 ` rguenth at gcc dot gnu.org
[not found] <bug-7625-1471@http.gcc.gnu.org/bugzilla/>
2006-04-10 19:49 ` steven at gcc dot gnu dot org
2006-04-10 20:17 ` dave at hiauly1 dot hia dot nrc dot ca
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