re PR bootstrap/64612 (profiledbootstrap failures)

	PR bootstrap/64612
	* lib/target-supports.exp (check_effective_target_comdat_group): New.
	* g++.dg/ipa/pr64612.C: Guard scan-assembler test with
	{ target comdat_group }.

	* doc/sourcebuild.texi (comdat_group): Document.

From-SVN: r220198

gcc/ChangeLog

+2015-01-28  Jakub Jelinek  <jakub@redhat.com>
+
+	PR bootstrap/64612
+	* doc/sourcebuild.texi (comdat_group): Document.
+
 2015-01-28  Terry Guo  <terry.guo@arm.com>
 
 	* config/arm/thumb1.md (*thumb1_movpc_insn): New insn pattern.

gcc/doc/sourcebuild.texi

@@ -1930,6 +1930,9 @@ Target supports @code{wchar_t} that is compatible with @code{char16_t}.
 
 @item wchar_t_char32_t_compatible
 Target supports @code{wchar_t} that is compatible with @code{char32_t}.
+
+@item comdat_group
+Target uses comdat groups.
 @end table
 
 @subsubsection Local to tests in @code{gcc.target/i386}

gcc/testsuite/ChangeLog

+2015-01-28  Jakub Jelinek  <jakub@redhat.com>
+
+	PR bootstrap/64612
+	* lib/target-supports.exp (check_effective_target_comdat_group): New.
+	* g++.dg/ipa/pr64612.C: Guard scan-assembler test with
+	{ target comdat_group }.
+
 2015-01-27  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/63861

gcc/testsuite/g++.dg/ipa/pr64612.C

 /* { dg-do compile } */
 /* { dg-options "-O3 -std=c++11" } */
-/* { dg-final { scan-assembler "_ZN5QListI7QStringED1Ev" } } */
+/* { dg-final { scan-assembler "_ZN5QListI7QStringED1Ev" { target comdat_group } } } */
 
 class A
 {

gcc/testsuite/lib/target-supports.exp

@@ -6199,3 +6199,13 @@ proc check_effective_target_pie_copyreloc { } {
 
     return $pie_copyreloc_available_saved
 }
+
+# Return 1 if the target uses comdat groups.
+
+proc check_effective_target_comdat_group {} {
+    return [check_no_messages_and_pattern comdat_group "\.section\[^\n\r]*,comdat" assembly {
+	// C++
+	inline int foo () { return 1; }
+	int (*fn) () = foo;
+    }]
+}