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ipa-devirt.c (odr_types_equivalent_p): Do not ICE if one of types is anonymous. 

* ipa-devirt.c (odr_types_equivalent_p): Do not ICE if one of types
	is anonymous.
	* g++.dg/lto/odr-1_0.C: New test.
	* g++.dg/lto/odr-1_1.C: New test.

From-SVN: r265484
This commit is contained in:
Jan Hubicka 2018-10-25 14:18:28 +02:00 committed by Jan Hubicka
parent 46ec926100
commit 09d3f04eae
5 changed files with 38 additions and 0 deletions
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5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2018-10-25 Jan Hubicka <jh@suse.cz>
* ipa-devirt.c (odr_types_equivalent_p): Do not ICE if one of types
is anonymous.
2018-10-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/87665

7
gcc/ipa-devirt.c
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@ -1265,6 +1265,13 @@ odr_types_equivalent_p (tree t1, tree t2, bool warn, bool *warned,
/* Check first for the obvious case of pointer identity. */
if (t1 == t2)
return true;
if ((type_with_linkage_p (t1) && type_in_anonymous_namespace_p (t1))
!= (type_with_linkage_p (t2) && type_in_anonymous_namespace_p (t2)))
{
warn_odr (t1, t2, NULL, NULL, warn, warned,
G_("one of types is in anonymous namespace while other is not"));
return false;
}
gcc_assert (!type_with_linkage_p (t1) || !type_in_anonymous_namespace_p (t1));
gcc_assert (!type_with_linkage_p (t2) || !type_in_anonymous_namespace_p (t2));

6
gcc/testsuite/ChangeLog
View File

@ -1,5 +1,11 @@
2018-10-25 Jan Hubicka <jh@suse.cz>
* g++.dg/lto/odr-1_0.C: New test.
* g++.dg/lto/odr-1_1.C: New test.
2018-10-25 Thomas Preud'homme <thomas.preudhomme@linaro.org>
* gcc.dg/sibcall-9.c: Make v static.
* gcc.dg/sibcall-10.c: Likewise.

8
gcc/testsuite/g++.dg/lto/odr-1_0.C Normal file
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@ -0,0 +1,8 @@
// PR c++/82414
// { dg-lto-do link }
struct a { // { dg-lto-warning "8: type 'struct a' violates the C\\+\\+ One Definition Rule" }
struct b *ptr; // { dg-lto-message "13: the first difference of corresponding definitions is field 'ptr'" }
};
void test(struct a *) // { dg-lto-warning "6: warning: 'test' violates the C++ One Definition Rule" }
{
}

12
gcc/testsuite/g++.dg/lto/odr-1_1.C Normal file
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@ -0,0 +1,12 @@
namespace {
struct b;
}
struct a {
struct b *ptr;
};
void test(struct a *);
int
main(void)
{
test (0);
}