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* [Bug middle-end/114975] New: [AVR] Using popcounthi2 for 8-bit values despit popcountqi2 @ 2024-05-07 15:11 gjl at gcc dot gnu.org 2024-05-08 8:41 ` [Bug middle-end/114975] [AVR] Using popcounthi2 for 8-bit values despite popcountqi2 cvs-commit at gcc dot gnu.org ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: gjl at gcc dot gnu.org @ 2024-05-07 15:11 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114975 Bug ID: 114975 Summary: [AVR] Using popcounthi2 for 8-bit values despit popcountqi2 Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: gjl at gcc dot gnu.org Target Milestone: --- C test case typedef __UINT8_TYPE__ uint8_t; uint8_t use_pop (uint8_t x) { return __builtin_popcount (x); } compiles with $ avr-gcc pop.c -Os -S to: use_pop: ldi r25,0 rcall __popcounthi2 ret .ident "GCC: (GNU) 14.0.1 20240421 (experimental)" despite libgcc providing __popcountqi2. I am not even sure which component is supposed to treat this. The tree optimizers do only __builtin_popcount, and as there's nothing like popcount_u8 they cannot do anything about it. So blaming the middle-end for now. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/114975] [AVR] Using popcounthi2 for 8-bit values despite popcountqi2 2024-05-07 15:11 [Bug middle-end/114975] New: [AVR] Using popcounthi2 for 8-bit values despit popcountqi2 gjl at gcc dot gnu.org @ 2024-05-08 8:41 ` cvs-commit at gcc dot gnu.org 2024-05-08 8:41 ` cvs-commit at gcc dot gnu.org ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2024-05-08 8:41 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114975 --- Comment #1 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Georg-Johann Lay <gjl@gcc.gnu.org>: https://gcc.gnu.org/g:c8f4bbb824fafecf021a802324cd79e64b03b947 commit r15-317-gc8f4bbb824fafecf021a802324cd79e64b03b947 Author: Georg-Johann Lay <avr@gjlay.de> Date: Tue May 7 19:39:55 2024 +0200 AVR: target/114975 - Add combine-pattern for __popcountqi2. PR target/114975 gcc/ * config/avr/avr.md: Add combine pattern for 8-bit popcount detection. gcc/testsuite/ * gcc.target/avr/pr114975-popcount.c: New test. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/114975] [AVR] Using popcounthi2 for 8-bit values despite popcountqi2 2024-05-07 15:11 [Bug middle-end/114975] New: [AVR] Using popcounthi2 for 8-bit values despit popcountqi2 gjl at gcc dot gnu.org 2024-05-08 8:41 ` [Bug middle-end/114975] [AVR] Using popcounthi2 for 8-bit values despite popcountqi2 cvs-commit at gcc dot gnu.org @ 2024-05-08 8:41 ` cvs-commit at gcc dot gnu.org 2024-05-08 8:44 ` [Bug target/114975] " gjl at gcc dot gnu.org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2024-05-08 8:41 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114975 --- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Georg-Johann Lay <gjl@gcc.gnu.org>: https://gcc.gnu.org/g:41bc359c322d45ec1adfb51f7a45c7ef02ce6ca9 commit r15-318-g41bc359c322d45ec1adfb51f7a45c7ef02ce6ca9 Author: Georg-Johann Lay <avr@gjlay.de> Date: Tue May 7 19:42:30 2024 +0200 AVR: target/114975 - Add combine-pattern for __parityqi2. PR target/114975 gcc/ * config/avr/avr.md: Add combine pattern for 8-bit parity detection. gcc/testsuite/ * gcc.target/avr/pr114975-parity.c: New test. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/114975] [AVR] Using popcounthi2 for 8-bit values despite popcountqi2 2024-05-07 15:11 [Bug middle-end/114975] New: [AVR] Using popcounthi2 for 8-bit values despit popcountqi2 gjl at gcc dot gnu.org 2024-05-08 8:41 ` [Bug middle-end/114975] [AVR] Using popcounthi2 for 8-bit values despite popcountqi2 cvs-commit at gcc dot gnu.org 2024-05-08 8:41 ` cvs-commit at gcc dot gnu.org @ 2024-05-08 8:44 ` gjl at gcc dot gnu.org 2024-05-09 9:02 ` cvs-commit at gcc dot gnu.org ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: gjl at gcc dot gnu.org @ 2024-05-08 8:44 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114975 Georg-Johann Lay <gjl at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED Component|middle-end |target Target Milestone|--- |15.0 --- Comment #3 from Georg-Johann Lay <gjl at gcc dot gnu.org> --- Fixed in v15. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/114975] [AVR] Using popcounthi2 for 8-bit values despite popcountqi2 2024-05-07 15:11 [Bug middle-end/114975] New: [AVR] Using popcounthi2 for 8-bit values despit popcountqi2 gjl at gcc dot gnu.org ` (2 preceding siblings ...) 2024-05-08 8:44 ` [Bug target/114975] " gjl at gcc dot gnu.org @ 2024-05-09 9:02 ` cvs-commit at gcc dot gnu.org 2024-05-09 9:02 ` cvs-commit at gcc dot gnu.org 2024-05-09 9:03 ` gjl at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2024-05-09 9:02 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114975 --- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-14 branch has been updated by Georg-Johann Lay <gjl@gcc.gnu.org>: https://gcc.gnu.org/g:4ef09dd8ce8866e4f64dd918890c97a67af8fd15 commit r14-10187-g4ef09dd8ce8866e4f64dd918890c97a67af8fd15 Author: Georg-Johann Lay <avr@gjlay.de> Date: Tue May 7 19:39:55 2024 +0200 AVR: target/114975 - Add combine-pattern for __popcountqi2. PR target/114975 gcc/ * config/avr/avr.md: Add combine pattern for 8-bit popcount detection. gcc/testsuite/ * gcc.target/avr/pr114975-popcount.c: New test. (cherry picked from commit c8f4bbb824fafecf021a802324cd79e64b03b947) ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/114975] [AVR] Using popcounthi2 for 8-bit values despite popcountqi2 2024-05-07 15:11 [Bug middle-end/114975] New: [AVR] Using popcounthi2 for 8-bit values despit popcountqi2 gjl at gcc dot gnu.org ` (3 preceding siblings ...) 2024-05-09 9:02 ` cvs-commit at gcc dot gnu.org @ 2024-05-09 9:02 ` cvs-commit at gcc dot gnu.org 2024-05-09 9:03 ` gjl at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2024-05-09 9:02 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114975 --- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-14 branch has been updated by Georg-Johann Lay <gjl@gcc.gnu.org>: https://gcc.gnu.org/g:bbb76ac0a06ae3a469f2acc2d5d63e63160bd9e5 commit r14-10188-gbbb76ac0a06ae3a469f2acc2d5d63e63160bd9e5 Author: Georg-Johann Lay <avr@gjlay.de> Date: Tue May 7 19:42:30 2024 +0200 AVR: target/114975 - Add combine-pattern for __parityqi2. PR target/114975 gcc/ * config/avr/avr.md: Add combine pattern for 8-bit parity detection. gcc/testsuite/ * gcc.target/avr/pr114975-parity.c: New test. (cherry picked from commit 41bc359c322d45ec1adfb51f7a45c7ef02ce6ca9) ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/114975] [AVR] Using popcounthi2 for 8-bit values despite popcountqi2 2024-05-07 15:11 [Bug middle-end/114975] New: [AVR] Using popcounthi2 for 8-bit values despit popcountqi2 gjl at gcc dot gnu.org ` (4 preceding siblings ...) 2024-05-09 9:02 ` cvs-commit at gcc dot gnu.org @ 2024-05-09 9:03 ` gjl at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: gjl at gcc dot gnu.org @ 2024-05-09 9:03 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114975 Georg-Johann Lay <gjl at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|15.0 |14.2 --- Comment #6 from Georg-Johann Lay <gjl at gcc dot gnu.org> --- Fixed in v14.2+ ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2024-05-09 9:03 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2024-05-07 15:11 [Bug middle-end/114975] New: [AVR] Using popcounthi2 for 8-bit values despit popcountqi2 gjl at gcc dot gnu.org 2024-05-08 8:41 ` [Bug middle-end/114975] [AVR] Using popcounthi2 for 8-bit values despite popcountqi2 cvs-commit at gcc dot gnu.org 2024-05-08 8:41 ` cvs-commit at gcc dot gnu.org 2024-05-08 8:44 ` [Bug target/114975] " gjl at gcc dot gnu.org 2024-05-09 9:02 ` cvs-commit at gcc dot gnu.org 2024-05-09 9:02 ` cvs-commit at gcc dot gnu.org 2024-05-09 9:03 ` gjl at gcc dot gnu.org
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