commit: 4d2e2dcb337a4608bdda4d32d51fbdf93428167c Author: Sam James <sam <AT> gentoo <DOT> org> AuthorDate: Sat Dec 13 22:08:09 2025 +0000 Commit: Sam James <sam <AT> gentoo <DOT> org> CommitDate: Sat Dec 13 22:08:09 2025 +0000 URL: https://gitweb.gentoo.org/proj/gcc-patches.git/commit/?id=4d2e2dcb
16.0.0: update pgo workaround patch https://inbox.sourceware.org/gcc-patches/20251208093029.1Mez96cZCp7gM2LYREScMr26HwC3HZ4pB8cpRN_dG48@z/ Signed-off-by: Sam James <sam <AT> gentoo.org> 16.0.0/gentoo/86_all_PR122456-pgo-workaround.patch | 50 +++++++++++++++++++--- 16.0.0/gentoo/README.history | 4 ++ 2 files changed, 49 insertions(+), 5 deletions(-) diff --git a/16.0.0/gentoo/86_all_PR122456-pgo-workaround.patch b/16.0.0/gentoo/86_all_PR122456-pgo-workaround.patch index 1f9d204..3acc0f3 100644 --- a/16.0.0/gentoo/86_all_PR122456-pgo-workaround.patch +++ b/16.0.0/gentoo/86_all_PR122456-pgo-workaround.patch @@ -1,12 +1,52 @@ -https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122456#c28 +From fc4f5a36323e08e503ef7e487aca9f7ca4735fa0 Mon Sep 17 00:00:00 2001 +Message-ID: <fc4f5a36323e08e503ef7e487aca9f7ca4735fa0.1765663665.git....@gentoo.org> +From: Richard Biener <[email protected]> +Date: Mon, 8 Dec 2025 10:30:29 +0100 +Subject: [PATCH] ipa/122456 - fix ICE during LTO profiledbootstrap + +When we have a speculated edge but we folded the call to +__builtin_unreachable () then trying to update the cgraph ICEs +in resolve_speculation because there's no symtab node for +__builtin_unreachable (). Reject this resolving attempt similar +as to when the callees decl were NULL or it were not semantically +equivalent. + +I only have a LTRANS unit as testcase. + +I've LTO profilebootstrapped this with the config that reproduced +the error but I'm now doing a regular bootstrap/regtest as well. + +OK? + +Thanks, +Richard. + +PR ipa/122456 + * cgraph.cc (cgraph_edge::resolve_speculation): Handle + a NULL symtab_node::get (callee_decl). +--- + gcc/cgraph.cc | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +diff --git a/gcc/cgraph.cc b/gcc/cgraph.cc +index 1a7d49922e09..ee5f2b411742 100644 --- a/gcc/cgraph.cc +++ b/gcc/cgraph.cc -@@ -1528,6 +1528,7 @@ cgraph_edge::resolve_speculation (cgraph_edge *edge, tree callee_decl) +@@ -1527,9 +1527,10 @@ cgraph_edge::resolve_speculation (cgraph_edge *edge, tree callee_decl) + e2 = edge; ref = e2->speculative_call_target_ref (); edge = edge->speculative_call_indirect_edge (); ++ symtab_node *callee; if (!callee_decl -+ || !symtab_node::get (callee_decl) - || !ref->referred->semantically_equivalent_p - (symtab_node::get (callee_decl))) +- || !ref->referred->semantically_equivalent_p +- (symtab_node::get (callee_decl))) ++ || !(callee = symtab_node::get (callee_decl)) ++ || !ref->referred->semantically_equivalent_p (callee)) { + if (dump_file) + { + +base-commit: 94d8ce172848b39de198eb7f6e07ccd3685ef66e +-- +2.52.0 diff --git a/16.0.0/gentoo/README.history b/16.0.0/gentoo/README.history index 60bb6fa..a964753 100644 --- a/16.0.0/gentoo/README.history +++ b/16.0.0/gentoo/README.history @@ -1,3 +1,7 @@ +27 ???? + + U 86_all_PR122456-pgo-workaround.patch + 26 7 December 2025 + 37_all_PR66487-object-lifetime-instrumentation-for-Valgrind.patch
