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Tolerate different definitions of symbols in lto

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gcc/

	PR lto/64076
	* ipa-visibility.c (update_visibility_by_resolution_info): Only
	assert when not in lto mode.

From-SVN: r220561
This commit is contained in:
Trevor Saunders 2015-02-10 02:23:11 +00:00 committed by Trevor Saunders
parent 32721b2cb5
commit a9e083cc43
5 changed files with 54 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-02-09 Trevor Saunders <tsaunders@mozilla.com>
PR lto/64076
* ipa-visibility.c (update_visibility_by_resolution_info): Only
assert when not in lto mode.
2015-02-09 Zhouyi Zhou <yizhouzhou@ict.ac.cn>
* ira-color.c (setup_left_conflict_sizes_p): Simplify

18
gcc/ipa-visibility.c
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@ -424,11 +424,19 @@ update_visibility_by_resolution_info (symtab_node * node)
if (node->same_comdat_group)
for (symtab_node *next = node->same_comdat_group;
next != node; next = next->same_comdat_group)
gcc_assert (!next->externally_visible
|| define == (next->resolution == LDPR_PREVAILING_DEF_IRONLY
|| next->resolution == LDPR_PREVAILING_DEF
|| next->resolution == LDPR_UNDEF
|| next->resolution == LDPR_PREVAILING_DEF_IRONLY_EXP));
{
if (!next->externally_visible)
continue;
bool same_def
= define == (next->resolution == LDPR_PREVAILING_DEF_IRONLY
|| next->resolution == LDPR_PREVAILING_DEF
|| next->resolution == LDPR_UNDEF
|| next->resolution == LDPR_PREVAILING_DEF_IRONLY_EXP);
gcc_assert (in_lto_p || same_def);
if (!same_def)
return;
}
if (node->same_comdat_group)
for (symtab_node *next = node->same_comdat_group;

20
gcc/testsuite/g++.dg/lto/pr64076.H Normal file
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@ -0,0 +1,20 @@
struct Base {
virtual void f() = 0;
};
struct X : public Base { };
struct Y : public Base { };
struct Z : public Base { };
struct T : public Base { };
struct S : public X, public Y, public Z
#ifdef XXX
, public T
#endif
{
void f()
#ifdef XXX
{ }
#endif
;
};

10
gcc/testsuite/g++.dg/lto/pr64076_0.C Normal file
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@ -0,0 +1,10 @@
// { dg-lto-do link }
#define XXX
#include "pr64076.H"
int main()
{
S s;
return 0;
}

5
gcc/testsuite/g++.dg/lto/pr64076_1.C Normal file
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@ -0,0 +1,5 @@
// { dg-options -fno-lto }
#include "pr64076.H"
void S::f() { }