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From: Martin Jambor <jamborm@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r11-10496] ipa: Release body more carefully when removing nodes (PR 107944) Date: Thu, 2 Feb 2023 11:28:55 +0000 (GMT) [thread overview] Message-ID: <20230202112855.DF0013858C60@sourceware.org> (raw) https://gcc.gnu.org/g:e36385be53d51539e1c295a80085115b24fede32 commit r11-10496-ge36385be53d51539e1c295a80085115b24fede32 Author: Martin Jambor <mjambor@suse.cz> Date: Thu Feb 2 12:22:22 2023 +0100 ipa: Release body more carefully when removing nodes (PR 107944) The code removing function bodies when the last call graph clone of a node is removed is too aggressive when there are nodes up the clone_of chain which still need them. Fixed by expanding the check. gcc/ChangeLog: 2023-01-18 Martin Jambor <mjambor@suse.cz> PR ipa/107944 * cgraph.c (cgraph_node::remove): Check whether nodes up the lcone_of chain also do not need the body. (cherry picked from commit db959e250077ae6b4fc08f53fb322719582c5de6) Diff: --- gcc/cgraph.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/gcc/cgraph.c b/gcc/cgraph.c index 4e3e348513b..6e523e14e05 100644 --- a/gcc/cgraph.c +++ b/gcc/cgraph.c @@ -1908,8 +1908,18 @@ cgraph_node::remove (void) else if (clone_of) { clone_of->clones = next_sibling_clone; - if (!clone_of->analyzed && !clone_of->clones && !clones) - clone_of->release_body (); + if (!clones) + { + bool need_body = false; + for (cgraph_node *n = clone_of; n; n = n->clone_of) + if (n->analyzed || n->clones) + { + need_body = true; + break; + } + if (!need_body) + clone_of->release_body (); + } } if (next_sibling_clone) next_sibling_clone->prev_sibling_clone = prev_sibling_clone;
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