[PATCH, rs6000] add testcase coverage for vec_neg built-ins.

[Will Schmidt]

Hi,

[PATCH, rs6000] add testcase coverage for vec_neg built-ins.
Add testcase coverage for the vec_neg builtins.

Regtest running, (but sniff tests has been clean).  OK for trunk?

Thanks,
-Will
    
[testsuite]

2017-10-25  Will Schmidt  <will_schm...@vnet.ibm.com>

        * gcc.target/powerpc/fold-vec-neg-char.c: New.
        * gcc.target/powerpc/fold-vec-neg-floatdouble.c: New.
        * gcc.target/powerpc/fold-vec-neg-int.c: New.
        * gcc.target/powerpc/fold-vec-neg-longlong.c: New.
        * gcc.target/powerpc/fold-vec-neg-short.c: New.


diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-char.c 
b/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-char.c
new file mode 100644
index 0000000..19ea3d3
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-char.c
@@ -0,0 +1,19 @@
+/* Verify that overloaded built-ins for vec_neg with char
+   inputs produce the right code.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_altivec_ok } */
+/* { dg-options "-maltivec -O2" } */
+
+#include <altivec.h>
+
+vector signed char
+test2 (vector signed char x)
+{
+  return vec_neg (x);
+}
+
+/* { dg-final { scan-assembler-times "xxspltib|vspltisw|vxor" 1 } } */
+/* { dg-final { scan-assembler-times "vsububm" 1 } } */
+/* { dg-final { scan-assembler-times "vmaxsb" 0 } } */
+
diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-floatdouble.c 
b/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-floatdouble.c
new file mode 100644
index 0000000..79ad924
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-floatdouble.c
@@ -0,0 +1,23 @@
+/* Verify that overloaded built-ins for vec_neg with float and
+   double inputs for VSX produce the right code.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_vsx_ok } */
+/* { dg-options "-mvsx -O2" } */
+
+#include <altivec.h>
+
+vector float
+test1 (vector float x)
+{
+  return vec_neg (x);
+}
+
+vector double
+test2 (vector double x)
+{
+  return vec_neg (x);
+}
+
+/* { dg-final { scan-assembler-times "xvnegsp" 1 } } */
+/* { dg-final { scan-assembler-times "xvnegdp" 1 } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-int.c 
b/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-int.c
new file mode 100644
index 0000000..d6ca128
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-int.c
@@ -0,0 +1,18 @@
+/* Verify that overloaded built-ins for vec_neg with int
+   inputs produce the right code.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_altivec_ok } */
+/* { dg-options "-maltivec -O2" } */
+
+#include <altivec.h>
+
+vector signed int
+test1 (vector signed int x)
+{
+  return vec_neg (x);
+}
+
+/* { dg-final { scan-assembler-times "xxspltib|vspltisw|vxor" 1 } } */
+/* { dg-final { scan-assembler-times "vsubuwm" 1 } } */
+/* { dg-final { scan-assembler-times "vmaxsw" 0 } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-longlong.c 
b/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-longlong.c
new file mode 100644
index 0000000..48f7178
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-longlong.c
@@ -0,0 +1,18 @@
+/* Verify that overloaded built-ins for vec_neg with long long
+   inputs produce the right code.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_p8vector_ok } */
+/* { dg-options "-mpower8-vector -O2" } */
+
+#include <altivec.h>
+
+vector signed long long
+test3 (vector signed long long x)
+{
+  return vec_neg (x);
+}
+
+/* { dg-final { scan-assembler-times "xxspltib|vspltisw" 1 } } */
+/* { dg-final { scan-assembler-times "vsubudm" 1 } } */
+/* { dg-final { scan-assembler-times "vmaxsd" 0 } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-short.c 
b/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-short.c
new file mode 100644
index 0000000..997a9d4
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-neg-short.c
@@ -0,0 +1,18 @@
+/* Verify that overloaded built-ins for vec_neg with short
+   inputs produce the right code.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_altivec_ok } */
+/* { dg-options "-maltivec -O2" } */
+
+#include <altivec.h>
+
+vector signed short
+test3 (vector signed short x)
+{
+  return vec_neg (x);
+}
+
+/* { dg-final { scan-assembler-times "xxspltib|vspltisw|vxor" 1 } } */
+/* { dg-final { scan-assembler-times "vsubuhm" 1 } } */
+/* { dg-final { scan-assembler-times "vmaxsh" 0 } } */