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* [Bug target/112298] New: Poor code for DImode operations on H8 port
@ 2023-10-30 15:07 law at gcc dot gnu.org
2023-10-30 15:07 ` [Bug target/112298] " law at gcc dot gnu.org
2023-10-30 15:42 ` roger at nextmovesoftware dot com
0 siblings, 2 replies; 3+ messages in thread
From: law at gcc dot gnu.org @ 2023-10-30 15:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112298
Bug ID: 112298
Summary: Poor code for DImode operations on H8 port
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: law at gcc dot gnu.org
Target Milestone: ---
long long foo(long long x) { return x << 1; }
Highlights several code inefficiencies WRT DImode values on the H8.
I would expect that defining a reasonable adddi3 and some DImode shifts would
likely help this problem considerably.
I'm not currently working on this problem.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug target/112298] Poor code for DImode operations on H8 port
2023-10-30 15:07 [Bug target/112298] New: Poor code for DImode operations on H8 port law at gcc dot gnu.org
@ 2023-10-30 15:07 ` law at gcc dot gnu.org
2023-10-30 15:42 ` roger at nextmovesoftware dot com
1 sibling, 0 replies; 3+ messages in thread
From: law at gcc dot gnu.org @ 2023-10-30 15:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112298
Jeffrey A. Law <law at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |h8300
Priority|P3 |P4
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug target/112298] Poor code for DImode operations on H8 port
2023-10-30 15:07 [Bug target/112298] New: Poor code for DImode operations on H8 port law at gcc dot gnu.org
2023-10-30 15:07 ` [Bug target/112298] " law at gcc dot gnu.org
@ 2023-10-30 15:42 ` roger at nextmovesoftware dot com
1 sibling, 0 replies; 3+ messages in thread
From: roger at nextmovesoftware dot com @ 2023-10-30 15:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112298
Roger Sayle <roger at nextmovesoftware dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
CC| |roger at nextmovesoftware dot com
Ever confirmed|0 |1
Last reconfirmed| |2023-10-30
^ permalink raw reply [flat|nested] 3+ messages in thread
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2023-10-30 15:07 [Bug target/112298] New: Poor code for DImode operations on H8 port law at gcc dot gnu.org
2023-10-30 15:07 ` [Bug target/112298] " law at gcc dot gnu.org
2023-10-30 15:42 ` roger at nextmovesoftware dot com
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