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re PR ipa/79776 (ICE on valid code in insert_vi_for_tree, at tree-ssa-structalias.c:2807)

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2017-03-27  Richard Biener  <rguenther@suse.de>

	PR ipa/79776
	* tree-ssa-structalias.c (associate_varinfo_to_alias): Skip
	inlined thunk clones.

	* g++.dg/ipa/pr79776.C: New testcase.

From-SVN: r246494
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Richard Biener 2017-03-27 10:50:55 +00:00 committed by Richard Biener
parent 7cd200f63f
commit c5e5f5f642
4 changed files with 43 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2017-03-27 Richard Biener <rguenther@suse.de>
PR ipa/79776
* tree-ssa-structalias.c (associate_varinfo_to_alias): Skip
inlined thunk clones.
2017-03-27 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/80168

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2017-03-27 Richard Biener <rguenther@suse.de>
PR ipa/79776
* g++.dg/ipa/pr79776.C: New testcase.
2017-03-27 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/80168

29
gcc/testsuite/g++.dg/ipa/pr79776.C Normal file
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@ -0,0 +1,29 @@
// PR ipa/71146
// { dg-do compile }
// { dg-options "-O3 -fipa-pta" }
typedef enum { X } E;
struct A {
virtual void bar ();
};
struct B {
virtual E fn (const char *, int, int *) = 0;
};
struct C : A, B {
E fn (const char *, int, int *);
void fn2 ();
B *foo;
};
void C::fn2 () {
if (!foo)
return;
foo->fn (0, 0, 0);
}
E
C::fn (const char *, int, int *)
{
fn2 ();
foo = 0;
fn (0, 0, 0);
return X;
}

4
gcc/tree-ssa-structalias.c
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@ -7615,7 +7615,9 @@ struct pt_solution ipa_escaped_pt
static bool
associate_varinfo_to_alias (struct cgraph_node *node, void *data)
{
if ((node->alias || node->thunk.thunk_p)
if ((node->alias
|| (node->thunk.thunk_p
&& ! node->global.inlined_to))
&& node->analyzed)
insert_vi_for_tree (node->decl, (varinfo_t)data);
return false;