[PATCH, rs6000] Update vsx-vector-6-le.c tests for p9 target

[Will Schmidt]

Hi,
Noted during review of test results on P9.   Due to changes and improvements,
our codegen is different for this test on power9.
Modified the existing test to target P8, and added a P9 variant with updated
counts.
    
Sniff-tested, now runs clean on P9.  OK for trunk?

Thanks,
-Will
    
[testsuite]

2018-02-07  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* gcc.target/powerpc/vsx-vector-6-le.c:  Update CPU target.
	* gcc.target/powerpc/vsx-vector-6-le.p9.c:  New.

diff --git a/gcc/testsuite/gcc.target/powerpc/vsx-vector-6-le.c b/gcc/testsuite/gcc.target/powerpc/vsx-vector-6-le.c
index ddb0089..7fe691b 100644
--- a/gcc/testsuite/gcc.target/powerpc/vsx-vector-6-le.c
+++ b/gcc/testsuite/gcc.target/powerpc/vsx-vector-6-le.c
@@ -1,11 +1,11 @@
 /* { dg-do compile { target { powerpc64le-*-* && lp64 } } } */
 /* { dg-skip-if "" { powerpc*-*-darwin* } } */
 /* { dg-require-effective-target powerpc_vsx_ok } */
-/* { dg-options "-mvsx -O2" } */
+/* { dg-options "-mvsx -O2 -mcpu=power8" } */
 
-/* Expected instruction counts for Little Endian */
+/* Expected instruction counts for Little Endian targeting Power8. */
 
 /* { dg-final { scan-assembler-times "xvabsdp" 1 } } */
 /* { dg-final { scan-assembler-times "xvadddp" 1 } } */
 /* { dg-final { scan-assembler-times "xxlnor" 8 } } */
 /* { dg-final { scan-assembler-times "xxlor" 30 } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/vsx-vector-6-le.p9.c b/gcc/testsuite/gcc.target/powerpc/vsx-vector-6-le.p9.c
new file mode 100644
index 0000000..450cd52
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/vsx-vector-6-le.p9.c
@@ -0,0 +1,32 @@
+/* { dg-do compile { target { powerpc64le-*-* && lp64 } } } */
+/* { dg-skip-if "" { powerpc*-*-darwin* } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-options "-mvsx -O2 -mcpu=power9" } */
+
+/* Expected instruction counts for Little Endian targeting Power9. */
+
+/* { dg-final { scan-assembler-times "xvabsdp" 1 } } */
+/* { dg-final { scan-assembler-times "xvadddp" 1 } } */
+/* { dg-final { scan-assembler-times "xxlnor" 7 } } */
+/* { dg-final { scan-assembler-times "xxlor" 20 } } */
+/* { dg-final { scan-assembler-times "xvcmpeqdp" 5 } } */
+/* { dg-final { scan-assembler-times "xvcmpgtdp" 8 } } */
+/* { dg-final { scan-assembler-times "xvcmpgedp" 8 } } */
+/* { dg-final { scan-assembler-times "xvrdpim" 1 } } */
+/* { dg-final { scan-assembler-times "xvmaddadp" 1 } } */
+/* { dg-final { scan-assembler-times "xvmsubadp" 1 } } */
+/* { dg-final { scan-assembler-times "xvsubdp" 1 } } */
+/* { dg-final { scan-assembler-times "xvmaxdp" 1 } } */
+/* { dg-final { scan-assembler-times "xvmindp" 1 } } */
+/* { dg-final { scan-assembler-times "xvmuldp" 1 } } */
+/* { dg-final { scan-assembler-times "vperm" 1 } } */
+/* { dg-final { scan-assembler-times "xvrdpic" 1 } } */
+/* { dg-final { scan-assembler-times "xvsqrtdp" 1 } } */
+/* { dg-final { scan-assembler-times "xvrdpiz" 1 } } */
+/* { dg-final { scan-assembler-times "xvmsubasp" 1 } } */
+/* { dg-final { scan-assembler-times "xvnmaddasp" 1 } } */
+/* { dg-final { scan-assembler-times "vmsumshs" 1 } } */
+/* { dg-final { scan-assembler-times "xxland" 13 } } */
+
+/* Source code for the test in vsx-vector-6.h */
+#include "vsx-vector-6.h"