From: Martin Liska <mliska@suse.cz>
Date: Fri, 7 Apr 2017 10:36:21 +0000 (+0200)
Subject: Add function part to a same comdat group (PR ipa/80212).
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=70cd23c019a2766eea4a8c9c20b674bc83b181e3;p=gcc.git

Add function part to a same comdat group (PR ipa/80212).

2017-04-07  Martin Liska  <mliska@suse.cz>

	PR ipa/80212
	* g++.dg/ipa/pr80212.C: New test.
2017-04-07  Martin Liska  <mliska@suse.cz>

	PR ipa/80212
	* ipa-split.c (split_function): Add function part to a same comdat
	group.

From-SVN: r246759
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e6ad7cefd92..6237a2ce40d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2017-04-07  Martin Liska  <mliska@suse.cz>
+
+	PR ipa/80212
+	* ipa-split.c (split_function): Add function part to a same comdat
+	group.
+
 2017-04-07  Richard Biener  <rguenther@suse.de>
 
 	PR middle-end/80341
diff --git a/gcc/ipa-split.c b/gcc/ipa-split.c
index da3c2c62344..ae1de6f1e63 100644
--- a/gcc/ipa-split.c
+++ b/gcc/ipa-split.c
@@ -1363,6 +1363,9 @@ split_function (basic_block return_bb, struct split_point *split_point,
   /* Let's take a time profile for splitted function.  */
   node->tp_first_run = cur_node->tp_first_run + 1;
 
+  if (cur_node->same_comdat_group)
+    node->add_to_same_comdat_group (cur_node);
+
   /* For usual cloning it is enough to clear builtin only when signature
      changes.  For partial inlining we however can not expect the part
      of builtin implementation to have same semantic as the whole.  */
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 565485a0218..43e7bec066c 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2017-04-07  Martin Liska  <mliska@suse.cz>
+
+	PR ipa/80212
+	* g++.dg/ipa/pr80212.C: New test.
+
 2017-04-07  Thomas Preud'homme  <thomas.preudhomme@arm.com>
 
 	* gcc.dg/tree-ssa/pr79800.c: Require c99_runtime.
diff --git a/gcc/testsuite/g++.dg/ipa/pr80212.C b/gcc/testsuite/g++.dg/ipa/pr80212.C
new file mode 100644
index 00000000000..60d3b613035
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ipa/pr80212.C
@@ -0,0 +1,18 @@
+// PR ipa/80212
+// { dg-options "-O2 --param partial-inlining-entry-probability=403796683 -fno-early-inlining" }
+
+struct b
+{
+  virtual b *c () const;
+};
+struct d : virtual b
+{
+};
+struct e : d
+{
+  e *
+  c () const
+  {
+  }
+};
+main () { e a; }