re PR c++/89325 (False warnings about "optimization attribute" on operators when -fno-ipa-cp-clone)

	PR c++/89325
	* g++.dg/ext/attrib58.C: New test.
	* g++.dg/ext/attrib59.C: New test.
	* g++.dg/ext/attrib60.C: New test.

From-SVN: r270422

gcc/testsuite/ChangeLog

 2019-04-17  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c++/89325
+	* g++.dg/ext/attrib58.C: New test.
+	* g++.dg/ext/attrib59.C: New test.
+	* g++.dg/ext/attrib60.C: New test.
+
 	PR target/90125
 	* gcc.target/i386/avx512f-vfmsubXXXss-2.c (avx512f_test): Adjust
 	constants to ensure precise result even when not using fma.

gcc/testsuite/g++.dg/ext/attrib58.C

+// PR c++/89325
+// { dg-do compile }
+// { dg-options "-Wattributes" }
+
+struct A { friend int &operator<< (int &i, const A &) { return i; } };	// { dg-bogus "previous definition" }
+#pragma GCC optimize ("-fno-ipa-cp-clone")
+struct B {};
+int &operator<<(int &, const B &);	// { dg-bogus "optimization attribute on '\[^\n\r]*' follows definition but the attribute doesn.t match" }

gcc/testsuite/g++.dg/ext/attrib59.C

+// PR c++/89325
+// { dg-do compile }
+// { dg-options "-Wattributes" }
+
+int foo (int) { return 0; }	// { dg-bogus "previous definition" }
+int bar (int) { return 0; }	// { dg-bogus "previous definition" }
+int baz (int) { return 0; }	// { dg-message "previous definition" }
+__attribute__((optimize (0))) int bar (long); // { dg-bogus "optimization attribute on '\[^\n\r]*' follows definition but the attribute doesn.t match" }
+#pragma GCC optimize ("-fno-ipa-cp-clone")
+int foo (long);			// { dg-bogus "optimization attribute on '\[^\n\r]*' follows definition but the attribute doesn.t match" }
+int baz (int);			// { dg-warning "optimization attribute on '\[^\n\r]*' follows definition but the attribute doesn.t match" }

gcc/testsuite/g++.dg/ext/attrib60.C

+// PR c++/89325
+// { dg-do compile }
+// { dg-options "-Wattributes" }
+
+__attribute__((noinline)) void foo (int) {}	// { dg-bogus "previous definition" } 
+inline void foo (long);				// { dg-bogus "inline declaration of '\[^\n\r]*' follows declaration with attribute 'noinline'" }
+inline void foo (long) {}
+__attribute__((noinline)) void bar (int) {}	// { dg-message "previous definition" } 
+inline void bar (int);				// { dg-warning "inline declaration of '\[^\n\r]*' follows declaration with attribute 'noinline'" }