cpu-future.c: Require powerpc_future_ok.

2019-05-31  Bill Schmidt  <wschmidt@linux.ibm.com>
	    Michael Meissner  <meissner@linux.ibm.com>

	* gcc.target/powerpc/cpu-future.c: Require powerpc_future_ok.
	* gcc.target/powerpc/localentry-1.c: Likewise.
	* gcc.target/powerpc/localentry-direct-1.c: Likewise.
	* gcc.target/powerpc/notoc-direct-1.c: Likewise.
	* gcc.target/powerpc/pcrel-sibcall-1.c: Likewise.
	* lib/target-supports.exp (check_powerpc_future_hw_available): New.
	(check_effective_target_powerpc_future_ok): New.


Co-Authored-By: Michael Meissner <meissner@linux.ibm.com>

From-SVN: r271810

gcc/testsuite/ChangeLog

+2019-05-31  Bill Schmidt  <wschmidt@linux.ibm.com>
+	    Michael Meissner  <meissner@linux.ibm.com>
+
+	* gcc.target/powerpc/cpu-future.c: Require powerpc_future_ok.
+	* gcc.target/powerpc/localentry-1.c: Likewise.
+	* gcc.target/powerpc/localentry-direct-1.c: Likewise.
+	* gcc.target/powerpc/notoc-direct-1.c: Likewise.
+	* gcc.target/powerpc/pcrel-sibcall-1.c: Likewise.
+	* lib/target-supports.exp (check_powerpc_future_hw_available): New.
+	(check_effective_target_powerpc_future_ok): New.
+
 2019-05-31  Thomas De Schampheleire  <thomas.de_schampheleire@nokia.com>
 
 	PR debug/86964

gcc/testsuite/gcc.target/powerpc/cpu-future.c

 /* { dg-do compile } */
+/* { dg-require-effective-target powerpc_future_ok } */
 /* { dg-options "-mdejagnu-cpu=future -O2" } */
 
 /* Ensure -mcpu=future compiles cleanly.  */

gcc/testsuite/gcc.target/powerpc/localentry-1.c

 /* { dg-do compile } */
 /* { dg-options "-mdejagnu-cpu=future -O2" } */
 /* { dg-require-effective-target powerpc_elfv2 } */
+/* { dg-require-effective-target powerpc_future_ok } */
 
 /* Ensure we generate ".localentry fn,1" for both leaf and non-leaf
    functions.  */

gcc/testsuite/gcc.target/powerpc/localentry-detect-1.c

 /* { dg-do compile } */
 /* { dg-require-effective-target powerpc_elfv2 } */
+/* { dg-require-effective-target powerpc_future_ok } */
 /* { dg-options "-O2 -mdejagnu-cpu=future" } */
 
 

gcc/testsuite/gcc.target/powerpc/notoc-direct-1.c

 /* { dg-do compile } */
 /* { dg-options "-mdejagnu-cpu=future -O2" } */
 /* { dg-require-effective-target powerpc_elfv2 } */
+/* { dg-require-effective-target powerpc_future_ok } */
 
 /* Test that calls generated from PC-relative code are
    annotated with @notoc.  */

gcc/testsuite/gcc.target/powerpc/pcrel-sibcall-1.c

 /* { dg-do compile } */
 /* { dg-options "-mdejagnu-cpu=future -O2" } */
 /* { dg-require-effective-target powerpc_elfv2 } */
+/* { dg-require-effective-target powerpc_future_ok } */
 
 /* Test that potential sibcalls are not generated when the caller preserves
    the TOC and the callee doesn't, or vice versa.  */

gcc/testsuite/lib/target-supports.exp

@@ -2140,6 +2140,25 @@ proc check_p9modulo_hw_available { } {
     }]
 }
 
+
+# Return 1 if the target supports executing FUTURE instructions, 0 otherwise.
+# Cache the result.  It is assumed that if a simulator does not support the
+# FUTURE instructions, that it will generate an error and this test will fail.
+
+proc check_powerpc_future_hw_available { } {
+    return [check_cached_effective_target powerpc_future_hw_available {
+	check_runtime_nocache powerpc_future_hw_available {
+	    int main()
+	    {
+		/* Set e first and use +r to check if pli actually works.  */
+		long e = -1;
+		asm ("pli %0,%1" : "+r" (e) : "n" (0x12345));
+		return (e == 0x12345);
+	    }
+	} "-mfuture"
+    }]
+}
+
 # Return 1 if the target supports executing __float128 on PowerPC via software
 # emulation, 0 otherwise.  Cache the result.
 
@@ -5157,6 +5176,24 @@ proc check_effective_target_powerpc_p9modulo_ok { } {
     }
 }
 
+# Return 1 if this is a PowerPC target supporting -mfuture.
+# Limit this to 64-bit linux systems for now until other
+# targets support FUTURE.
+
+proc check_effective_target_powerpc_future_ok { } {
+    if { ([istarget powerpc64*-*-linux*]) } {
+	return [check_no_compiler_messages powerpc_future_ok object {
+	    int main (void) {
+		long e;
+		asm ("pli %0,%1" : "=r" (e) : "n" (0x12345));
+		return e;
+	    }
+	} "-mfuture"]
+    } else {
+	return 0
+    }
+}
+
 # Return 1 if this is a PowerPC target supporting -mfloat128 via either
 # software emulation on power7/power8 systems or hardware support on power9.