Fix dg-require-* syntax

	* gcc.dg/Wattribute-alias.c: Pass emtpy arg to dg-require-ifunc.

	* gcc.c-torture/execute/20030125-1.c: Pass emtpy arg to dg-require-weak.

	* gcc.dg/torture/ftrapv-2.c: Pass empty arg to dg-require-fork.

	* gcc.target/i386/pr84723-1.c: Remove dg-require-ifunc.
	* gcc.target/i386/pr84723-2.c: Likewise.
	* gcc.target/i386/pr84723-3.c: Likewise.
	* gcc.target/i386/pr84723-4.c: Likewise.
	* gcc.target/i386/pr84723-5.c: Likewise.

From-SVN: r271476

gcc/testsuite/ChangeLog

+2019-05-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* gcc.dg/Wattribute-alias.c: Pass emtpy arg to dg-require-ifunc.
+
+	* gcc.c-torture/execute/20030125-1.c: Pass emtpy arg to dg-require-weak.
+
+	* gcc.dg/torture/ftrapv-2.c: Pass empty arg to dg-require-fork.
+
+	* gcc.target/i386/pr84723-1.c: Remove dg-require-ifunc.
+	* gcc.target/i386/pr84723-2.c: Likewise.
+	* gcc.target/i386/pr84723-3.c: Likewise.
+	* gcc.target/i386/pr84723-4.c: Likewise.
+	* gcc.target/i386/pr84723-5.c: Likewise.
+
 2019-05-21  Iain Sandoe  <iain@sandoe.co.uk>
 
 	PR testsuite/67958

gcc/testsuite/gcc.c-torture/execute/20030125-1.c

 /* Verify whether math functions are simplified.  */
 /* { dg-require-effective-target c99_runtime } */
-/* { dg-require-weak } */
+/* { dg-require-weak "" } */
 double sin(double);
 double floor(double);
 float 

gcc/testsuite/gcc.dg/Wattribute-alias.c

 /* PR middle-end/81824 - Warn for missing attributes with function aliases
    { dg-do compile }
-   { dg-require-ifunc "require ifunc support" }
+   { dg-require-ifunc "" }
    { dg-options "-Wall -Wattribute-alias=2" } */
 
 #define ATTR(...)   __attribute__ ((__VA_ARGS__))

gcc/testsuite/gcc.dg/torture/ftrapv-2.c

@@ -3,7 +3,7 @@
 /* { dg-skip-if "" { *-*-* } { "-flto" } { "" } } */
 /* { dg-additional-options "-ftrapv" } */
 /* { dg-require-effective-target trapping } */
-/* { dg-require-fork unused } */
+/* { dg-require-fork "" } */
 
 #include <stdlib.h>
 #include <unistd.h>

gcc/testsuite/gcc.target/i386/pr84723-1.c

 /* PR middle-end/84723 */
 /* { dg-do compile } */
-/* { dg-require-ifunc } */
 /* { dg-options "-O2" } */
 
 __attribute__((target_clones ("avx", "default")))

gcc/testsuite/gcc.target/i386/pr84723-2.c

 /* PR middle-end/84723 */
 /* { dg-do compile } */
-/* { dg-require-ifunc } */
 /* { dg-options "-O2" } */
 
 __attribute__((target_clones ("avx", "default")))

gcc/testsuite/gcc.target/i386/pr84723-3.c

 /* PR middle-end/84723 */
 /* { dg-do compile } */
-/* { dg-require-ifunc } */
 /* { dg-options "-O2" } */
 
 __attribute__((target_clones ("avx", "default")))

gcc/testsuite/gcc.target/i386/pr84723-4.c

 /* PR middle-end/84723 */
 /* { dg-do compile } */
-/* { dg-require-ifunc } */
 /* { dg-options "-O2" } */
 
 __attribute__((target_clones ("avx", "default")))

gcc/testsuite/gcc.target/i386/pr84723-5.c

 /* PR middle-end/84723 */
 /* { dg-do compile } */
-/* { dg-require-ifunc } */
 /* { dg-options "-O2" } */
 
 __attribute__((target_clones ("avx", "default")))