From bdba439399552531c0fe82da5037386715f07940 Mon Sep 17 00:00:00 2001 From: ebotcazou Date: Tue, 13 Mar 2018 10:04:51 +0000 Subject: [PATCH] PR lto/84805 * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of incomplete types. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@258481 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 6 ++++++ gcc/ipa-devirt.c | 6 ++++-- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 74cb5eb2b03..0937241a058 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-03-13 Eric Botcazou + + PR lto/84805 + * ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of + incomplete types. + 2018-03-13 Martin Liska PR ipa/84658. diff --git a/gcc/ipa-devirt.c b/gcc/ipa-devirt.c index fae82072a7e..30d37574bbe 100644 --- a/gcc/ipa-devirt.c +++ b/gcc/ipa-devirt.c @@ -656,7 +656,7 @@ set_type_binfo (tree type, tree binfo) gcc_assert (!TYPE_BINFO (type)); } -/* Compare T2 and T2 based on name or structure. */ +/* Compare T1 and T2 based on name or structure. */ static bool odr_subtypes_equivalent_p (tree t1, tree t2, @@ -678,7 +678,7 @@ odr_subtypes_equivalent_p (tree t1, tree t2, return false; /* For ODR types be sure to compare their names. - To support -wno-odr-type-merging we allow one type to be non-ODR + To support -Wno-odr-type-merging we allow one type to be non-ODR and other ODR even though it is a violation. */ if (types_odr_comparable (t1, t2, true)) { @@ -690,6 +690,8 @@ odr_subtypes_equivalent_p (tree t1, tree t2, therefore which call will report the ODR violation, if any. */ if (!odr_type_p (t1) || !odr_type_p (t2) + || !COMPLETE_TYPE_P (t1) + || !COMPLETE_TYPE_P (t2) || (!get_odr_type (t1, true)->odr_violated && !get_odr_type (t2, true)->odr_violated)) return true; -- 2.11.4.GIT