Hi,
Some testcases to exercise the vec_splat() built-in.
Tested successfully on assorted powerpc Linux systems, in conjunction
with the vec-splat() folding patch, which is being posted separately.
In building and updating these tests I consciously violated the
80 char per line rule, as I was doing experimentation with the
assorted values and making lots of local updates. I've left them as-is
just because, but can update that if so desired.
OK for trunk?
Thanks,
-Will
[testsuite]
2018-08-07 Will Schmidt <will_schm...@vnet.ibm.com>
* gcc.target/powerpc/fold-vec-splat-char.c: New.
* gcc.target/powerpc/fold-vec-splat-floatdouble.c: New.
* gcc.target/powerpc/fold-vec-splat-int.c: New.
* gcc.target/powerpc/fold-vec-splat-longlong.c: New.
* gcc.target/powerpc/fold-vec-splat-pixel.c: New.
* gcc.target/powerpc/fold-vec-splat-short.c: New.
diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-char.c
b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-char.c
new file mode 100644
index 0000000..7c4c784
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-char.c
@@ -0,0 +1,60 @@
+/* Verify that overloaded built-ins for vec_splat 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 bool char testb_0 (vector bool char x) { return vec_splat (x,
0b00000); }
+vector bool char testb_1 (vector bool char x) { return vec_splat (x,
0b00001); }
+vector bool char testb_2 (vector bool char x) { return vec_splat (x,
0b00010); }
+vector bool char testb_4 (vector bool char x) { return vec_splat (x,
0b00100); }
+vector bool char testb_8 (vector bool char x) { return vec_splat (x,
0b01000); }
+vector bool char testb_10 (vector bool char x) { return vec_splat (x,
0b10000); }
+vector bool char testb_1e (vector bool char x) { return vec_splat (x,
0b11110); }
+vector bool char testb_1f (vector bool char x) { return vec_splat (x,
0b11111); }
+
+vector signed char tests_0 (vector signed char x) { return vec_splat (x,
0b00000); }
+vector signed char tests_1 (vector signed char x) { return vec_splat (x,
0b00001); }
+vector signed char tests_2 (vector signed char x) { return vec_splat (x,
0b00010); }
+vector signed char tests_4 (vector signed char x) { return vec_splat (x,
0b00100); }
+vector signed char tests_8 (vector signed char x) { return vec_splat (x,
0b01000); }
+vector signed char tests_10 (vector signed char x) { return vec_splat (x,
0b10000); }
+vector signed char tests_1e (vector signed char x) { return vec_splat (x,
0b11110); }
+vector signed char tests_1f (vector signed char x) { return vec_splat (x,
0b11111); }
+
+vector unsigned char testu_0 (vector unsigned char x) { return vec_splat (x,
0b00000); }
+vector unsigned char testu_1 (vector unsigned char x) { return vec_splat (x,
0b00001); }
+vector unsigned char testu_2 (vector unsigned char x) { return vec_splat (x,
0b00010); }
+vector unsigned char testu_4 (vector unsigned char x) { return vec_splat (x,
0b00100); }
+vector unsigned char testu_8 (vector unsigned char x) { return vec_splat (x,
0b01000); }
+vector unsigned char testu_10 (vector unsigned char x) { return vec_splat (x,
0b10000); }
+vector unsigned char testu_1e (vector unsigned char x) { return vec_splat (x,
0b11110); }
+vector unsigned char testu_1f (vector unsigned char x) { return vec_splat (x,
0b11111); }
+
+/* Similar test as above, but the source vector is a known constant. */
+const vector bool char by =
{'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p'};
+const vector signed char sy =
{'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p'};
+const vector unsigned char uy =
{'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p'};
+vector bool char
+test_bc (vector bool char x)
+{
+ return vec_splat (by, 0b00010);
+}
+vector signed char
+test_sc (vector signed char x)
+{
+ return vec_splat (sy, 0b00011);
+}
+vector unsigned char
+test_uc (vector unsigned char x)
+{
+ return vec_splat (uy, 0b00110);
+}
+
+// vec_splat() using variable vectors should generate the vspltb instruction.
+/* { dg-final { scan-assembler-times "vspltb" 24 } } */
+// vec_splat() using a constant vector should generate a load.
+/* { dg-final { scan-assembler-times {\mlvx\M|\mlxvw4x\M} 3 } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-floatdouble.c
b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-floatdouble.c
new file mode 100644
index 0000000..a6eaa72
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-floatdouble.c
@@ -0,0 +1,54 @@
+/* Verify that overloaded built-ins for vec_splat with float and
+ double inputs produce the right code. */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_vsx_ok } */
+/* { dg-options "-maltivec -mvsx -O1" } */
+
+#include <altivec.h>
+
+vector float testf_00 (vector float x) { return vec_splat (x, 0b00000); }
+vector float testf_01 (vector float x) { return vec_splat (x, 0b00001); }
+vector float testf_02 (vector float x) { return vec_splat (x, 0b00010); }
+vector float testf_04 (vector float x) { return vec_splat (x, 0b00100); }
+vector float testf_08 (vector float x) { return vec_splat (x, 0b01000); }
+vector float testf_0f (vector float x) { return vec_splat (x, 0b01111); }
+vector float testf_10 (vector float x) { return vec_splat (x, 0b10000); }
+vector float testf_1e (vector float x) { return vec_splat (x, 0b11110); }
+vector float testf_1f (vector float x) { return vec_splat (x, 0b11111); }
+
+vector double testd_00 (vector double x) { return vec_splat (x, 0b00000); }
+vector double testd_01 (vector double x) { return vec_splat (x, 0b00001); }
+vector double testd_02 (vector double x) { return vec_splat (x, 0b00010); }
+vector double testd_04 (vector double x) { return vec_splat (x, 0b00100); }
+vector double testd_08 (vector double x) { return vec_splat (x, 0b01000); }
+vector double testd_0f (vector double x) { return vec_splat (x, 0b01111); }
+vector double testd_10 (vector double x) { return vec_splat (x, 0b10000); }
+vector double testd_1e (vector double x) { return vec_splat (x, 0b11110); }
+vector double testd_1f (vector double x) { return vec_splat (x, 0b11111); }
+
+/* Similar tests as above, but the source vector is a known constant. */
+vector float
+test_fc (vector float x)
+{
+ const vector float y = { 7.1, 8.2, 9.3, 10.4};
+ return vec_splat (y, 0b00010);
+}
+
+vector double
+test_dc (vector double x)
+{
+ const vector double y = { 3.0, 5.0 };
+ return vec_splat (y, 0b00010);
+}
+
+/* lvx for loading of the constants. */
+/* vspltw or xxspltw for floats. */
+/* xxpermdi for doubles. */
+
+// vec_splat() using a constant vector should generate a load.
+/* { dg-final { scan-assembler-times {\mlvx\M|\mlxvd2x\M} 2 } } */
+
+/* { dg-final { scan-assembler-times "vspltw|xxspltw" 9 } } */
+/* { dg-final { scan-assembler-times "xxpermdi" 9 } } */
+
diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-int.c
b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-int.c
new file mode 100644
index 0000000..8694ba5
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-int.c
@@ -0,0 +1,45 @@
+/* Verify that overloaded built-ins for vec_splat 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 bool int testb_0 (vector bool int x) { return vec_splat (x, 0b00000); }
+vector bool int testb_1 (vector bool int x) { return vec_splat (x, 0b00001); }
+vector bool int testb_2 (vector bool int x) { return vec_splat (x, 0b00010); }
+vector bool int testb_4 (vector bool int x) { return vec_splat (x, 0b00100); }
+vector bool int testb_8 (vector bool int x) { return vec_splat (x, 0b01000); }
+vector bool int testb_10 (vector bool int x) { return vec_splat (x, 0b10000); }
+vector bool int testb_1e (vector bool int x) { return vec_splat (x, 0b11110); }
+vector bool int testb_1f (vector bool int x) { return vec_splat (x, 0b11111); }
+
+vector signed int tests_0 (vector signed int x) { return vec_splat (x,
0b00000); }
+vector signed int tests_1 (vector signed int x) { return vec_splat (x,
0b00001); }
+vector signed int tests_2 (vector signed int x) { return vec_splat (x,
0b00010); }
+vector signed int tests_4 (vector signed int x) { return vec_splat (x,
0b00100); }
+vector signed int tests_8 (vector signed int x) { return vec_splat (x,
0b01000); }
+vector signed int tests_10 (vector signed int x) { return vec_splat (x,
0b10000); }
+vector signed int tests_1e (vector signed int x) { return vec_splat (x,
0b11110); }
+vector signed int tests_1f (vector signed int x) { return vec_splat (x,
0b11111); }
+
+vector unsigned int testu_0 (vector unsigned int x) { return vec_splat (x,
0b00000); }
+vector unsigned int testu_1 (vector unsigned int x) { return vec_splat (x,
0b00001); }
+vector unsigned int testu_2 (vector unsigned int x) { return vec_splat (x,
0b00010); }
+vector unsigned int testu_4 (vector unsigned int x) { return vec_splat (x,
0b00100); }
+vector unsigned int testu_8 (vector unsigned int x) { return vec_splat (x,
0b01000); }
+vector unsigned int testu_10 (vector unsigned int x) { return vec_splat (x,
0b10000); }
+vector unsigned int testu_1e (vector unsigned int x) { return vec_splat (x,
0b11110); }
+vector unsigned int testu_1f (vector unsigned int x) { return vec_splat (x,
0b11111); }
+
+/* Similar test as above, but the source vector is a known constant. */
+vector signed int
+test3_0c (vector signed int x)
+{
+ const vector signed int y = { 1,2,3,4};
+ return vec_splat (y, 0b00010);
+}
+/* { dg-final { scan-assembler-times "vspltisw" 1 } } */
+/* { dg-final { scan-assembler-times "vspltw|xxspltw" 24 } } */
+
diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-longlong.c
b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-longlong.c
new file mode 100644
index 0000000..729b0cc
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-longlong.c
@@ -0,0 +1,62 @@
+/* Verify that overloaded built-ins for vec_splat with long long
+ inputs produce the right code. */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_p8vector_ok } */
+/* { dg-options "-mvsx -O2" } */
+
+#include <altivec.h>
+
+vector bool long long testb_00 (vector bool long long x) { return vec_splat
(x, 0b00000); }
+vector bool long long testb_01 (vector bool long long x) { return vec_splat
(x, 0b00001); }
+vector bool long long testb_02 (vector bool long long x) { return vec_splat
(x, 0b00010); }
+vector bool long long testb_04 (vector bool long long x) { return vec_splat
(x, 0b00100); }
+vector bool long long testb_08 (vector bool long long x) { return vec_splat
(x, 0b01000); }
+vector bool long long testb_10 (vector bool long long x) { return vec_splat
(x, 0b10000); }
+vector bool long long testb_1e (vector bool long long x) { return vec_splat
(x, 0b11110); }
+vector bool long long testb_1f (vector bool long long x) { return vec_splat
(x, 0b11111); }
+
+vector signed long long tests_00 (vector signed long long x) { return
vec_splat (x, 0b00000); }
+vector signed long long tests_01 (vector signed long long x) { return
vec_splat (x, 0b00001); }
+vector signed long long tests_02 (vector signed long long x) { return
vec_splat (x, 0b00010); }
+vector signed long long tests_04 (vector signed long long x) { return
vec_splat (x, 0b00100); }
+vector signed long long tests_08 (vector signed long long x) { return
vec_splat (x, 0b01000); }
+vector signed long long tests_10 (vector signed long long x) { return
vec_splat (x, 0b10000); }
+vector signed long long tests_1e (vector signed long long x) { return
vec_splat (x, 0b11110); }
+vector signed long long tests_1f (vector signed long long x) { return
vec_splat (x, 0b11111); }
+
+vector unsigned long long testu_00 (vector unsigned long long x) { return
vec_splat (x, 0b00000); }
+vector unsigned long long testu_01 (vector unsigned long long x) { return
vec_splat (x, 0b00001); }
+vector unsigned long long testu_02 (vector unsigned long long x) { return
vec_splat (x, 0b00010); }
+vector unsigned long long testu_04 (vector unsigned long long x) { return
vec_splat (x, 0b00100); }
+vector unsigned long long testu_08 (vector unsigned long long x) { return
vec_splat (x, 0b01000); }
+vector unsigned long long testu_10 (vector unsigned long long x) { return
vec_splat (x, 0b10000); }
+vector unsigned long long testu_1e (vector unsigned long long x) { return
vec_splat (x, 0b11110); }
+vector unsigned long long testu_1f (vector unsigned long long x) { return
vec_splat (x, 0b11111); }
+
+/* Similar test as above, but the source vector is a known constant. */
+vector bool long long
+test_bc (vector bool long long x)
+{
+ const vector bool long long y = {12, 23};
+ return vec_splat (y, 0b00010);
+}
+vector signed long long
+test_sc (vector signed long long x)
+{
+ const vector signed long long y = {34, 45};
+ return vec_splat (y, 0b00010);
+}
+vector unsigned long long
+test_uc (vector unsigned long long x)
+{
+ const vector unsigned long long y = {56, 67};
+ return vec_splat (y, 0b00010);
+}
+
+/* lvx for the initialization with known constants. */
+/* { dg-final { scan-assembler-times {\mlvx\M|\mlxvd2x\M} 3 } } */
+/* xxpermdi for vec_splat of long long vectors. The bool and unsigned long
long
+ calls generate a pair of xxpermdi, so an additional +2. */
+/* { dg-final { scan-assembler-times "xxpermdi" 26 } } */
+
diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-pixel.c
b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-pixel.c
new file mode 100644
index 0000000..5e13468
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-pixel.c
@@ -0,0 +1,28 @@
+/* Verify that overloaded built-ins for vec_splat with pixel
+ inputs produce the right code. */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_vsx_ok } */
+/* { dg-options "-mvsx -O2" } */
+
+#include <altivec.h>
+
+vector pixel test1_00 (vector pixel x) { return vec_splat (x, 0b00000); }
+vector pixel test1_01 (vector pixel x) { return vec_splat (x, 0b00001); }
+vector pixel test1_02 (vector pixel x) { return vec_splat (x, 0b00010); }
+vector pixel test1_04 (vector pixel x) { return vec_splat (x, 0b00100); }
+vector pixel test1_08 (vector pixel x) { return vec_splat (x, 0b01000); }
+vector pixel test1_10 (vector pixel x) { return vec_splat (x, 0b10000); }
+vector pixel test1_1e (vector pixel x) { return vec_splat (x, 0b11110); }
+vector pixel test1_1f (vector pixel x) { return vec_splat (x, 0b11111); }
+
+/* Similar test as above, but the source vector is a known constant. */
+vector signed int
+test3_0c (vector signed int x)
+{
+ const vector signed int y = { 1,2,3,4};
+ return vec_splat (y, 0b00010);
+}
+
+/* { dg-final { scan-assembler-times "vspltisw" 1 } } */
+/* { dg-final { scan-assembler-times "vsplth" 8 } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-short.c
b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-short.c
new file mode 100644
index 0000000..b240aa1
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-splat-short.c
@@ -0,0 +1,57 @@
+/* Verify that overloaded built-ins for vec_splat with short
+ inputs produce the right results. */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_altivec_ok } */
+/* { dg-options "-maltivec -O2" } */
+
+#include <altivec.h>
+
+vector bool short testb_00 (vector bool short x) { return vec_splat (x,
0b00000); }
+vector bool short testb_01 (vector bool short x) { return vec_splat (x,
0b00001); }
+vector bool short testb_02 (vector bool short x) { return vec_splat (x,
0b00010); }
+vector bool short testb_04 (vector bool short x) { return vec_splat (x,
0b00100); }
+vector bool short testb_08 (vector bool short x) { return vec_splat (x,
0b01000); }
+vector bool short testb_10 (vector bool short x) { return vec_splat (x,
0b10000); }
+vector bool short testb_1e (vector bool short x) { return vec_splat (x,
0b11110); }
+vector bool short testb_1f (vector bool short x) { return vec_splat (x,
0b11111); }
+
+vector signed short tests_00 (vector signed short x) { return vec_splat (x,
0b00000); }
+vector signed short tests_01 (vector signed short x) { return vec_splat (x,
0b00001); }
+vector signed short tests_02 (vector signed short x) { return vec_splat (x,
0b00010); }
+vector signed short tests_04 (vector signed short x) { return vec_splat (x,
0b00100); }
+vector signed short tests_08 (vector signed short x) { return vec_splat (x,
0b01000); }
+vector signed short tests_10 (vector signed short x) { return vec_splat (x,
0b10000); }
+vector signed short tests_1e (vector signed short x) { return vec_splat (x,
0b11110); }
+vector signed short tests_1f (vector signed short x) { return vec_splat (x,
0b11111); }
+
+vector unsigned short testu_00 (vector unsigned short x) { return vec_splat
(x, 0b00000); }
+vector unsigned short testu_01 (vector unsigned short x) { return vec_splat
(x, 0b00001); }
+vector unsigned short testu_02 (vector unsigned short x) { return vec_splat
(x, 0b00010); }
+vector unsigned short testu_04 (vector unsigned short x) { return vec_splat
(x, 0b00100); }
+vector unsigned short testu_08 (vector unsigned short x) { return vec_splat
(x, 0b01000); }
+vector unsigned short testu_10 (vector unsigned short x) { return vec_splat
(x, 0b10000); }
+vector unsigned short testu_1e (vector unsigned short x) { return vec_splat
(x, 0b11110); }
+vector unsigned short testu_1f (vector unsigned short x) { return vec_splat
(x, 0b11111); }
+
+/* Similar test as above, but the source vector is a known constant. */
+vector bool short
+test_bs (vector signed short x)
+{
+ const vector bool short y = {1, 2, 3, 4, 5, 6, 7, 8};
+ return vec_splat (y, 0b00010);
+}
+vector signed short
+test_ss (vector signed short x)
+{
+ const vector signed short y = {1, 2, 3, 4, 5, 6, 7, 8};
+ return vec_splat (y, 0b00010);
+}
+vector unsigned short
+test_us (vector unsigned short x)
+{
+ const vector unsigned short y = {1, 2, 3, 4, 5, 6, 7, 8};
+ return vec_splat (y, 0b00010);
+}
+/* { dg-final { scan-assembler-times "vspltish" 3 } } */
+/* { dg-final { scan-assembler-times "vsplth" 24 } } */
