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* [Bug ipa/68930] Aggregate replacements not applied to inline function bodies. [not found] <bug-68930-4@http.gcc.gnu.org/bugzilla/> @ 2023-05-29 16:25 ` jamborm at gcc dot gnu.org 2023-08-15 15:41 ` cvs-commit at gcc dot gnu.org 2023-08-15 15:44 ` jamborm at gcc dot gnu.org 2 siblings, 0 replies; 3+ messages in thread From: jamborm at gcc dot gnu.org @ 2023-05-29 16:25 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68930 --- Comment #9 from Martin Jambor <jamborm at gcc dot gnu.org> --- I have proposed a fix on the mailing list: https://gcc.gnu.org/pipermail/gcc-patches/2023-May/619969.html ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug ipa/68930] Aggregate replacements not applied to inline function bodies. [not found] <bug-68930-4@http.gcc.gnu.org/bugzilla/> 2023-05-29 16:25 ` [Bug ipa/68930] Aggregate replacements not applied to inline function bodies jamborm at gcc dot gnu.org @ 2023-08-15 15:41 ` cvs-commit at gcc dot gnu.org 2023-08-15 15:44 ` jamborm at gcc dot gnu.org 2 siblings, 0 replies; 3+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2023-08-15 15:41 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68930 --- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Martin Jambor <jamborm@gcc.gnu.org>: https://gcc.gnu.org/g:d073e2d75d9ed492de9a8dc6970e5b69fae20e5a commit r14-3226-gd073e2d75d9ed492de9a8dc6970e5b69fae20e5a Author: Martin Jambor <mjambor@suse.cz> Date: Tue Aug 15 17:26:13 2023 +0200 Feed results of IPA-CP into tree value numbering PRs 68930 and 92497 show that when IPA-CP figures out constants in aggregate parameters or when passed by reference but the loads happen in an inlined function the information is lost. This happens even when the inlined function itself was known to have - or even cloned to have - such constants in incoming parameters because the transform phase of IPA passes is not run on them. See discussion in the bugs for reasons why. Honza suggested that we can plug the results of IPA-CP analysis into value numbering, so that FRE can figure out that some loads fetch known constants. This is what this patch attempts to do. The patch does not attempt to populate partial_defs with information from IPA-CP, this can be hopefully added as a follow-up. gcc/ChangeLog: 2023-08-11 Martin Jambor <mjambor@suse.cz> PR ipa/68930 PR ipa/92497 * ipa-prop.h (ipcp_get_aggregate_const): Declare. * ipa-prop.cc (ipcp_get_aggregate_const): New function. (ipcp_transform_function): Do not deallocate transformation info. * tree-ssa-sccvn.cc: Include alloc-pool.h, symbol-summary.h and ipa-prop.h. (vn_reference_lookup_2): When hitting default-def vuse, query IPA-CP transformation info for any known constants. gcc/testsuite/ChangeLog: 2023-06-07 Martin Jambor <mjambor@suse.cz> PR ipa/68930 PR ipa/92497 * gcc.dg/ipa/pr92497-1.c: New test. * gcc.dg/ipa/pr92497-2.c: Likewise. ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug ipa/68930] Aggregate replacements not applied to inline function bodies. [not found] <bug-68930-4@http.gcc.gnu.org/bugzilla/> 2023-05-29 16:25 ` [Bug ipa/68930] Aggregate replacements not applied to inline function bodies jamborm at gcc dot gnu.org 2023-08-15 15:41 ` cvs-commit at gcc dot gnu.org @ 2023-08-15 15:44 ` jamborm at gcc dot gnu.org 2 siblings, 0 replies; 3+ messages in thread From: jamborm at gcc dot gnu.org @ 2023-08-15 15:44 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68930 Martin Jambor <jamborm at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #11 from Martin Jambor <jamborm at gcc dot gnu.org> --- Finally fixed. ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-08-15 15:44 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <bug-68930-4@http.gcc.gnu.org/bugzilla/> 2023-05-29 16:25 ` [Bug ipa/68930] Aggregate replacements not applied to inline function bodies jamborm at gcc dot gnu.org 2023-08-15 15:41 ` cvs-commit at gcc dot gnu.org 2023-08-15 15:44 ` jamborm at gcc dot gnu.org
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