re PR c/68657 ("gcc -Werror=sign-conversion test.i" shows invalid:…

re PR c/68657 ("gcc -Werror=sign-conversion test.i" shows invalid: -Wsign-conversion is not an option that controls warnings)

	PR c/68657
	* c.opt (Wpsabi): Add Warning flag.

	* gcc.target/i386/pr68657.c: New test.

From-SVN: r237316

gcc/c-family/ChangeLog

+2016-06-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/68657
+	* c.opt (Wpsabi): Add Warning flag.
+
 2016-06-10  Martin Sebor  <msebor@redhat.com>
 
 	PR c/71392

gcc/c-family/c.opt

@@ -265,7 +265,7 @@ C++ ObjC++ Var(warn_abi_tag) Warning
 Warn if a subobject has an abi_tag attribute that the complete object type does not have.
 
 Wpsabi
-C ObjC C++ ObjC++ LTO Var(warn_psabi) Init(1) Undocumented LangEnabledBy(C ObjC C++ ObjC++,Wabi)
+C ObjC C++ ObjC++ LTO Var(warn_psabi) Init(1) Warning Undocumented LangEnabledBy(C ObjC C++ ObjC++,Wabi)
 
 Waddress
 C ObjC C++ ObjC++ Var(warn_address) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)

gcc/testsuite/ChangeLog

 2016-06-10  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c/68657
+	* gcc.target/i386/pr68657.c: New test.
+
 	PR inline-asm/68843
 	* gcc.target/i386/pr68843-2.c: Add dg-do run and empty dg-options.
 	(test): Add -masm=intel alternatives.

gcc/testsuite/gcc.target/i386/pr68657.c

+/* PR c/68657 */
+/* { dg-options "-mno-avx512f -Werror=psabi" } */
+
+typedef int V __attribute__((vector_size (64)));
+
+void foo (V x, V *y) {	/* { dg-error "AVX512F vector argument without AVX512F enabled" } */
+  *y = x;
+}
+
+V bar (V *x) {		/* { dg-error "AVX512F vector return without AVX512F enabled" } */
+  return *x;
+}
+
+/* { dg-message "The ABI for passing parameters with 64-byte alignment has changed" "" { target *-*-* } 6 } */
+/* { dg-message "some warnings being treated as errors" "" { target *-*-* } 0 } */