From: Richard Biener <rguenther@suse.de>
Date: Mon, 8 Dec 2025 09:25:21 +0000 (+0100)
Subject: ipa/122456 - fix ICE during LTO profiledbootstrap
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3dfd545671f0b3ffb2bd5166637381665fea7ebb;p=thirdparty%2Fgcc.git

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.

	PR ipa/122456
	* cgraph.cc (cgraph_edge::resolve_speculation): Handle
	a NULL symtab_node::get (callee_decl).
---

diff --git a/gcc/cgraph.cc b/gcc/cgraph.cc
index abea2e2d2ae..9e273642dab 100644
--- a/gcc/cgraph.cc
+++ b/gcc/cgraph.cc
@@ -1515,9 +1515,10 @@ 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
-      || !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)
 	{