rs6000.h: Add conditional preprocessing directives to disable Power9-specific compiler...

gcc/ChangeLog:

2016-06-21  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* config/rs6000/rs6000.h: Add conditional preprocessing directives
	to disable Power9-specific compiler features if HAVE_AS_POWER9 is
	not defined.

gcc/testsuite/ChangeLog:

2016-06-21  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	* gcc.target/powerpc/darn-0.c: Add dejagnu directives to disable
	test if effective-target is not powerpc_p9vector_ok, or if a -mcpu
	override other than -mcpu=power9 command-line option is specified,
	or if the target operating system is aix.
	* gcc.target/powerpc/darn-1.c: Likewise.
	* gcc.target/powerpc/darn-2.c: Likewise.
	* gcc.target/powerpc/vslv-0.c: Add dejagnu directives to disable
	test if effective-target is not powerpc_p9vector_ok or if the
	target operating system is not defined.
	* gcc.target/powerpc/vslv-1.c: Likewise.
	* gcc.target/powerpc/vsrv-0.c: Likewise.
	* gcc.target/powerpc/vsrv-1.c: Likewise.

From-SVN: r237659

gcc/ChangeLog

@@ -1,3 +1,9 @@
+2016-06-21  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+
+	* config/rs6000/rs6000.h: Add conditional preprocessing directives
+	to disable Power9-specific compiler features if HAVE_AS_POWER9 is
+	not defined.
+
 2016-06-21  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* tree.c (verify_type_variant): Skip TYPE_SIZE and TYPE_SIZE_UNIT if

gcc/config/rs6000/rs6000.h

@@ -302,6 +302,26 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
 #define TARGET_P8_VECTOR 0
 #endif
 
+/* Define the ISA 3.0 flags as 0 if the target assembler does not support
+   Power9 instructions.  Allow -mpower9-fusion, since it does not add new
+   instructions.  Allow -misel, since it predates ISA 3.0 and does
+   not require any Power9 features.  */
+
+#ifndef HAVE_AS_POWER9
+#undef  TARGET_FLOAT128_HW
+#undef  TARGET_MODULO
+#undef  TARGET_P9_VECTOR
+#undef  TARGET_P9_MINMAX
+#undef  TARGET_P9_DFORM_SCALAR
+#undef  TARGET_P9_DFORM_VECTOR
+#define TARGET_FLOAT128_HW 0
+#define TARGET_MODULO 0
+#define TARGET_P9_VECTOR 0
+#define TARGET_P9_MINMAX 0
+#define TARGET_P9_DFORM_SCALAR 0
+#define TARGET_P9_DFORM_VECTOR 0
+#endif
+
 /* Define TARGET_LWSYNC_INSTRUCTION if the assembler knows about lwsync.  If
    not, generate the lwsync code as an integer constant.  */
 #ifdef HAVE_AS_LWSYNC

gcc/testsuite/ChangeLog

@@ -1,3 +1,18 @@
+2016-06-21  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+
+	* gcc.target/powerpc/darn-0.c: Add dejagnu directives to disable
+	test if effective-target is not powerpc_p9vector_ok, or if a -mcpu
+	override other than -mcpu=power9 command-line option is specified,
+	or if the target operating system is aix.
+	* gcc.target/powerpc/darn-1.c: Likewise.
+	* gcc.target/powerpc/darn-2.c: Likewise.
+	* gcc.target/powerpc/vslv-0.c: Add dejagnu directives to disable
+	test if effective-target is not powerpc_p9vector_ok or if the
+	target operating system is not defined.
+	* gcc.target/powerpc/vslv-1.c: Likewise.
+	* gcc.target/powerpc/vsrv-0.c: Likewise.
+	* gcc.target/powerpc/vsrv-1.c: Likewise.
+
 2016-06-21  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/71068

gcc/testsuite/gcc.target/powerpc/darn-0.c

@@ -1,4 +1,7 @@
 /* { dg-do compile { target { powerpc*-*-* } } } */
+/* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-skip-if "" { powerpc*-*-aix* } } */
 /* { dg-options "-mcpu=power9" } */
 
 /* This test should succeed on both 32- and 64-bit configurations.  */

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

@@ -1,6 +1,9 @@
 /* { dg-do compile { target { powerpc*-*-* } } } */
-/* { dg-options "-mcpu=power9" } */
+/* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
 /* { dg-require-effective-target lp64 } */
+/* { dg-skip-if "" { powerpc*-*-aix* } } */
+/* { dg-options "-mcpu=power9" } */
 
 #include <altivec.h>
 

gcc/testsuite/gcc.target/powerpc/darn-2.c

@@ -1,6 +1,9 @@
 /* { dg-do compile { target { powerpc*-*-* } } } */
-/* { dg-options "-mcpu=power9" } */
+/* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
 /* { dg-require-effective-target lp64 } */
+/* { dg-skip-if "" { powerpc*-*-aix* } } */
+/* { dg-options "-mcpu=power9" } */
 
 #include <altivec.h>
 

gcc/testsuite/gcc.target/powerpc/vslv-0.c

@@ -1,5 +1,7 @@
 /* { dg-do compile { target { powerpc*-*-* } } } */
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-skip-if "" { powerpc*-*-aix* } } */
 /* { dg-options "-mcpu=power9" } */
 
 #include <altivec.h>

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

@@ -1,5 +1,7 @@
 /* { dg-do compile { target { powerpc*-*-* } } } */
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-skip-if "" { powerpc*-*-aix* } } */
 /* { dg-options "-mcpu=power9" } */
 
 #include <altivec.h>

gcc/testsuite/gcc.target/powerpc/vsrv-0.c

@@ -1,5 +1,7 @@
 /* { dg-do compile { target { powerpc*-*-* } } } */
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-skip-if "" { powerpc*-*-aix* } } */
 /* { dg-options "-mcpu=power9" } */
 
 #include <altivec.h>

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

@@ -1,5 +1,7 @@
 /* { dg-do compile { target { powerpc*-*-* } } } */
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-skip-if "" { powerpc*-*-aix* } } */
 /* { dg-options "-mcpu=power9" } */
 
 #include <altivec.h>