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* [gcc r11-10496] ipa: Release body more carefully when removing nodes (PR 107944)
@ 2023-02-02 11:28 Martin Jambor
0 siblings, 0 replies; only message in thread
From: Martin Jambor @ 2023-02-02 11:28 UTC (permalink / raw)
To: gcc-cvs
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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