[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 Tamar Christina changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED

[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 --- Comment #9 from GCC Commits --- The master branch has been updated by Tamar Christina : https://gcc.gnu.org/g:a2f4be3dae04fa8606d1cc8451f0b9d450f7e6e6 commit r14-10014-ga2f4be3dae04fa8606d1cc8451f0b9d450f7e6e6 Author: Tamar Christina

[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 Tamar Christina changed: What|Removed |Added Assignee|unassigned at gcc dot gnu.org |tnfchris at gcc dot gnu.org

[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 --- Comment #7 from Wilco --- (In reply to Tamar Christina from comment #6) > and the exact armv9-a cost model you quoted, also does the right codegen. > https://godbolt.org/z/obafoT6cj > > There is just an inexplicable penalty being applied

[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 Jeffrey A. Law changed: What|Removed |Added CC||law at gcc dot gnu.org

[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 --- Comment #6 from Tamar Christina --- and the exact armv9-a cost model you quoted, also does the right codegen. https://godbolt.org/z/obafoT6cj There is just an inexplicable penalty being applied to the r->r alternative.

[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 Tamar Christina changed: What|Removed |Added CC||tnfchris at gcc dot gnu.org,

[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 --- Comment #4 from Andrew Pinski --- (In reply to Wilco from comment #2) > It looks like the underlying bug is '^' being incorrectly treated like '?' > in record_reg_classes (which is never used during reload). Fixing that > results in the

[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 Andrew Pinski changed: What|Removed |Added Last reconfirmed||2024-04-16

[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 --- Comment #2 from Wilco --- It looks like the underlying bug is '^' being incorrectly treated like '?' in record_reg_classes (which is never used during reload). Fixing that results in the expected code being generated in all cases. It looks

[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 Wilco changed: What|Removed |Added CC||wilco at gcc dot gnu.org --- Comment #1 from

[Bug target/114741] [14 regression] aarch64 sve: unnecessary fmov for scalar int bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114741 Andrew Pinski changed: What|Removed |Added Keywords||missed-optimization Target