[PATCH, rs6000] Tests of ARCH_PWR8 and -mno-vsx option.
Hi,
This adds an assortment of tests to exercise the -mno-vsx option and
confirm the impacts on the ARCH_PWR8 define.
These are based on and inspired by PR 101865, which
reports that _ARCH_PWR8 is disabled when -mno-vsx
is passed on the commandline.
There are a small number of failures introduced by these tests,
those are resolved with the changes in part 2.
OK for trunk?
Thanks,
-Will
gcc/testsuite:
* gcc.target/powerpc/predefine_p7-novsx.c: New test.
* gcc.target/powerpc/predefine_p8-noaltivec-novsx.c: New test.
* gcc.target/powerpc/predefine_p8-novsx.c: New test.
* gcc.target/powerpc/predefine_p9-novsx.c: New test.
* gcc.target/powerpc/predefine_pragma_vsx.c: New test.
diff --git a/gcc/testsuite/gcc.target/powerpc/predefine_p7-novsx.c
b/gcc/testsuite/gcc.target/powerpc/predefine_p7-novsx.c
new file mode 100644
index 000000000000..e842025b4d3c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/predefine_p7-novsx.c
@@ -0,0 +1,9 @@
+/* { dg-do preprocess } */
+/* Test whether the ARCH_PWR7 and ARCH_PWR8 defines gets set
+ * when we specify power7, plus options.
+/* This is a variation of the test at issue in GCC PR 101865 */
+/* { dg-options "-dM -E -mdejagnu-cpu=power7 -mno-vsx" } */
+/* { dg-final { scan-file predefine_p7-novsx.i "(^|\\n)#define _ARCH_PWR7
1($|\\n)" } } */
+/* { dg-final { scan-file-not predefine_p7-novsx.i "(^|\\n)#define _ARCH_PWR8
1($|\\n)" } } */
+/* { dg-final { scan-file-not predefine_p7-novsx.i "(^|\\n)#define __VSX__
1($|\\n)" } } */
+/* { dg-final { scan-file predefine_p7-novsx.i "(^|\\n)#define __ALTIVEC__
1($|\\n)" } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/predefine_p8-noaltivec-novsx.c
b/gcc/testsuite/gcc.target/powerpc/predefine_p8-noaltivec-novsx.c
new file mode 100644
index 000000000000..c3b705ca3d48
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/predefine_p8-noaltivec-novsx.c
@@ -0,0 +1,7 @@
+/* { dg-do preprocess } */
+/* Test whether the ARCH_PWR8 define remains set after disabling both altivec
and vsx. */
+/* { dg-options "-dM -E -mdejagnu-cpu=power8 -mno-altivec -mno-vsx" } */
+/* { dg-final { scan-file predefine_p8-noaltivec-novsx.i "(^|\\n)#define
_ARCH_PWR8 1($|\\n)" } } */
+/* { dg-final { scan-file-not predefine_p8-noaltivec-novsx.i "(^|\\n)#define
_ARCH_PWR9 1($|\\n)" } } */
+/* { dg-final { scan-file-not predefine_p8-noaltivec-novsx.i "(^|\\n)#define
__VSX__ 1($|\\n)" } } */
+/* { dg-final { scan-file-not predefine_p8-noaltivec-novsx.i "(^|\\n)#define
__ALTIVEC__ 1($|\\n)" } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/predefine_p8-novsx.c
b/gcc/testsuite/gcc.target/powerpc/predefine_p8-novsx.c
new file mode 100644
index 000000000000..8b6c69b20104
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/predefine_p8-novsx.c
@@ -0,0 +1,8 @@
+/* { dg-do preprocess } */
+/* Test whether the ARCH_PWR8 define remains set after disabling vsx.
+ This also confirms __ALTIVEC__ remains set when VSX is disabled. */
+/* This is the primary test at issue in GCC PR 101865 */
+/* { dg-options "-dM -E -mdejagnu-cpu=power8 -mno-vsx" } */
+/* { dg-final { scan-file predefine_p8-novsx.i "(^|\\n)#define _ARCH_PWR8
1($|\\n)" } } */
+/* { dg-final { scan-file-not predefine_p8-novsx.i "(^|\\n)#define __VSX__
1($|\\n)" } } */
+/* { dg-final { scan-file predefine_p8-novsx.i "(^|\\n)#define __ALTIVEC__
1($|\\n)" } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/predefine_p9-novsx.c
b/gcc/testsuite/gcc.target/powerpc/predefine_p9-novsx.c
new file mode 100644
index 000000000000..eef42c111663
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/predefine_p9-novsx.c
@@ -0,0 +1,10 @@
+/* { dg-do preprocess } */
+/* Test whether the ARCH_PWR8 define remains set after disabling vsx.
+ This also confirms __ALTIVEC__ remains set when VSX is disabled. */
+/* This is the primary test at issue in GCC PR 101865 */
+/* { dg-options "-dM -E -mdejagnu-cpu=power9 -mno-vsx" } */
+/* {xfail *-*-*} */
+/* { dg-final { scan-file predefine_p9-novsx.i "(^|\\n)#define _ARCH_PWR8
1($|\\n)" } } */
+/* { dg-final { scan-file predefine_p9-novsx.i "(^|\\n)#define _ARCH_PWR9
1($|\\n)" } } */
+/* { dg-final { scan-file-not predefine_p9-novsx.i "(^|\\n)#define __VSX__
1($|\\n)" } } */
+/* { dg-final { scan-file predefine_p9-novsx.i "(^|\\n)#define __ALTIVEC__
1($|\\n)" } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/predefine_pragma_vsx.c
b/gcc/testsuite/gcc.target/powerpc/predefine_pragma_vsx.c
new file mode 100644
index 000000000000..b300600af999
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/predefine_pragma_vsx.c
@@ -0,0 +1,83 @@
+/* { dg-do run } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-require-effective-target lp64 } */
+/* { dg-options "-mdejagnu-cpu=power8 -mvsx -O2" } */
+
+/* Ensure that if we set a pragma gcc target for an
+ older processor, we do not compile builtins that
+ the older target does not support. */
+
+#include <altivec.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+volatile int power8_set;
+volatile int vsx_set;
+
+void reset_values() {
+ vsx_set=0;
+ power8_set=0;
+}
+
+void test_default() {
+ reset_values();
+#ifdef _ARCH_PWR8
+ power8_set=1;
+#endif
+#ifdef __VSX__
+ vsx_set=1;
+#endif
+}
+
+#pragma GCC target "no-vsx"
+void test_no_vsx() {
+ reset_values();
+#ifdef _ARCH_PWR8
+ power8_set=1;
+#endif
+#ifdef __VSX__
+ vsx_set=1;
+#endif
+}
+
+#pragma GCC reset_options
+void test_reset_options() {
+ reset_values();
+#ifdef _ARCH_PWR8
+ power8_set=1;
+#endif
+#ifdef __VSX__
+ vsx_set=1;
+#endif
+}
+
+int main (int argc, char *argv []) {
+ test_default();
+ if (!power8_set) {
+ printf("_ARCH_PWR8 is not set.\n");
+ abort();
+ }
+ if (!vsx_set) {
+ printf("__VSX__ is not set.\n");
+ abort();
+ }
+ test_no_vsx();
+ if (!power8_set) {
+ printf("_ARCH_PWR8 is not set.\n");
+ abort();
+ }
+ if (vsx_set) {
+ printf("__VSX__ is unexpectedly set.\n");
+ abort();
+ }
+ test_reset_options();
+ if (!power8_set) {
+ printf("_ARCH_PWR8 is not set.\n");
+ abort();
+ }
+ if (!vsx_set) {
+ printf("__VSX__ is not set.\n");
+ abort();
+ }
+}
+
