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* [Bug testsuite/109147] New: Missing IPA-VRP for return values @ 2023-03-15 17:01 jakub at gcc dot gnu.org 2023-03-15 17:03 ` [Bug testsuite/109147] " pinskia at gcc dot gnu.org ` (4 more replies) 0 siblings, 5 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2023-03-15 17:01 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109147 Bug ID: 109147 Summary: Missing IPA-VRP for return values Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: testsuite Assignee: unassigned at gcc dot gnu.org Reporter: jakub at gcc dot gnu.org CC: david.spickett at linaro dot org, unassigned at gcc dot gnu.org Depends on: 109146 Target Milestone: --- +++ This bug was initially created as a clone of Bug #109146 +++ I guess we should turn this primarily into an enhancement request to optimize this. I believe that is a request for return value ranges in IPA-VRP. So a testcase could be: __attribute__((noinline)) static int foo (int a, int b) { return a == b; } int bar (int a, int b) { return foo (a, b) != 0; } __attribute__((noinline)) static int baz (int a) { if (a > 10 || a < -10) return 0; return a; } int qux (int a) { return baz (a) == 42; } where if we determine that foo always returns [0, 1] and baz [-10, 10], then we can optimize that return ret != 0; into return ret; and ret == 42 into 0. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109146 [Bug 109146] Tail call prevention in frame-address.c is not correct ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug testsuite/109147] Missing IPA-VRP for return values 2023-03-15 17:01 [Bug testsuite/109147] New: Missing IPA-VRP for return values jakub at gcc dot gnu.org @ 2023-03-15 17:03 ` pinskia at gcc dot gnu.org 2023-03-15 17:07 ` jakub at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-03-15 17:03 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109147 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Isn't this a dup of bug 81323 ? ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug testsuite/109147] Missing IPA-VRP for return values 2023-03-15 17:01 [Bug testsuite/109147] New: Missing IPA-VRP for return values jakub at gcc dot gnu.org 2023-03-15 17:03 ` [Bug testsuite/109147] " pinskia at gcc dot gnu.org @ 2023-03-15 17:07 ` jakub at gcc dot gnu.org 2023-03-15 17:16 ` jakub at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2023-03-15 17:07 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109147 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |DUPLICATE --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Dup. *** This bug has been marked as a duplicate of bug 81313 *** ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug testsuite/109147] Missing IPA-VRP for return values 2023-03-15 17:01 [Bug testsuite/109147] New: Missing IPA-VRP for return values jakub at gcc dot gnu.org 2023-03-15 17:03 ` [Bug testsuite/109147] " pinskia at gcc dot gnu.org 2023-03-15 17:07 ` jakub at gcc dot gnu.org @ 2023-03-15 17:16 ` jakub at gcc dot gnu.org 2023-03-15 17:16 ` jakub at gcc dot gnu.org 2023-12-06 18:59 ` pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2023-03-15 17:16 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109147 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Resolution|DUPLICATE |--- Status|RESOLVED |REOPENED Last reconfirmed| |2023-03-15 --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- . ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug testsuite/109147] Missing IPA-VRP for return values 2023-03-15 17:01 [Bug testsuite/109147] New: Missing IPA-VRP for return values jakub at gcc dot gnu.org ` (2 preceding siblings ...) 2023-03-15 17:16 ` jakub at gcc dot gnu.org @ 2023-03-15 17:16 ` jakub at gcc dot gnu.org 2023-12-06 18:59 ` pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2023-03-15 17:16 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109147 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |RESOLVED Resolution|--- |DUPLICATE --- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- . *** This bug has been marked as a duplicate of bug 81323 *** ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug testsuite/109147] Missing IPA-VRP for return values 2023-03-15 17:01 [Bug testsuite/109147] New: Missing IPA-VRP for return values jakub at gcc dot gnu.org ` (3 preceding siblings ...) 2023-03-15 17:16 ` jakub at gcc dot gnu.org @ 2023-12-06 18:59 ` pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-12-06 18:59 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109147 Bug 109147 depends on bug 109146, which changed state. Bug 109146 Summary: Tail call prevention in frame-address.c is not correct https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109146 What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2023-12-06 18:59 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-03-15 17:01 [Bug testsuite/109147] New: Missing IPA-VRP for return values jakub at gcc dot gnu.org 2023-03-15 17:03 ` [Bug testsuite/109147] " pinskia at gcc dot gnu.org 2023-03-15 17:07 ` jakub at gcc dot gnu.org 2023-03-15 17:16 ` jakub at gcc dot gnu.org 2023-03-15 17:16 ` jakub at gcc dot gnu.org 2023-12-06 18:59 ` pinskia at gcc dot gnu.org
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