From: Jakub Jelinek <jakub@redhat.com>
Date: Tue, 13 Dec 2016 08:48:45 +0000 (+0100)
Subject: re PR ipa/77905 (ICE at -Os and above in both 32-bit and 64-bit modes on x86_64-linux... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cd6d518b2978157020752ae1b5627e7619923930;p=gcc.git

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
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 95e896637ad..5b478a3045e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -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
diff --git a/gcc/ipa-pure-const.c b/gcc/ipa-pure-const.c
index 9732cbff12e..634decee1e3 100644
--- a/gcc/ipa-pure-const.c
+++ b/gcc/ipa-pure-const.c
@@ -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;
 }
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index b4eea7231f3..ac2a4f509a7 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -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
diff --git a/gcc/testsuite/g++.dg/ipa/pr77905.C b/gcc/testsuite/g++.dg/ipa/pr77905.C
new file mode 100644
index 00000000000..0f73d50addc
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ipa/pr77905.C
@@ -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) {}