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re PR ipa/77905 (ICE at -Os and above in both 32-bit and 64-bit modes on x86_64-linux-gnu (internal compiler error: in ipa_comdats, at ipa-comdats.c:352)) 

PR ipa/77905
	* ipa-pure-const.c (cdtor_p): Return true for
	DECL_STATIC_{CON,DE}STRUCTOR even when it is
	DECL_LOOPING_CONST_OR_PURE_P.

	* g++.dg/ipa/pr77905.C: New test.

From-SVN: r243596
This commit is contained in:
Jakub Jelinek 2016-12-13 09:48:45 +01:00 committed by Jakub Jelinek
parent 816f431440
commit cd6d518b29
4 changed files with 35 additions and 1 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2016-12-13 Jakub Jelinek <jakub@redhat.com>
PR ipa/77905
* ipa-pure-const.c (cdtor_p): Return true for
DECL_STATIC_{CON,DE}STRUCTOR even when it is
DECL_LOOPING_CONST_OR_PURE_P.
2016-12-12 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/78777

3
gcc/ipa-pure-const.c
View File

@ -1195,7 +1195,8 @@ static bool
cdtor_p (cgraph_node *n, void *)
{
if (DECL_STATIC_CONSTRUCTOR (n->decl) || DECL_STATIC_DESTRUCTOR (n->decl))
return !TREE_READONLY (n->decl) && !DECL_PURE_P (n->decl);
return ((!TREE_READONLY (n->decl) && !DECL_PURE_P (n->decl))
|| DECL_LOOPING_CONST_OR_PURE_P (n->decl));
return false;
}

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2016-12-13 Jakub Jelinek <jakub@redhat.com>
PR ipa/77905
* g++.dg/ipa/pr77905.C: New test.
2016-12-12 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/78777

21
gcc/testsuite/g++.dg/ipa/pr77905.C Normal file
View File

@ -0,0 +1,21 @@
// PR ipa/77905
// { dg-do compile }
// { dg-options "-O2" }
struct A {
A(int);
};
struct B : A {
B();
} A;
struct C : virtual A {
C(int);
};
A::A(int x) {
if (x)
A(0);
}
B::B() : A(1) {}
C::C(int) : A(1) {}