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re PR c++/71464 (ICE on invalid code (with redeclared constructor) at -Os: Segmentation fault) 

/cp
2018-03-03  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71464
	* optimize.c (maybe_thunk_body): Bail out immediately if either
	fns[0] or fns[1] is null.

/testsuite
2018-03-03  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/71464
	* g++.dg/torture/pr71464.C: New.

From-SVN: r258216
This commit is contained in:
Paolo Carlini 2018-03-03 17:48:23 +00:00 committed by Paolo Carlini
parent 6855fa2131
commit c94a3f9f65
4 changed files with 23 additions and 1 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2018-03-03 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/71464
* optimize.c (maybe_thunk_body): Bail out immediately if either
fns[0] or fns[1] is null.
2018-03-02 Marek Polacek <polacek@redhat.com>
PR c++/84578

6
gcc/cp/optimize.c
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@ -261,8 +261,12 @@ maybe_thunk_body (tree fn, bool force)
populate_clone_array (fn, fns);
/* Can happen during error recovery (c++/71464). */
if (!fns[0] || !fns[1])
return 0;
/* Don't use thunks if the base clone omits inherited parameters. */
if (fns[0] && ctor_omit_inherited_parms (fns[0]))
if (ctor_omit_inherited_parms (fns[0]))
return 0;
DECL_ABSTRACT_P (fn) = false;

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2018-03-03 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/71464
* g++.dg/torture/pr71464.C: New.
2018-03-03 Paul Thomas <pault@gcc.gnu.org>
PR fortran/80965

7
gcc/testsuite/g++.dg/torture/pr71464.C Normal file
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@ -0,0 +1,7 @@
struct A {};
struct B : virtual A
{
B () {};
B () {}; // { dg-error "cannot be overloaded" }
};