altivec-6.C: Updated vec_splat() calls.

[testsuite]

2018-09-25  Will Schmidt  <will_schmidt@vnet.ibm.com>

    * g++.dg/ext/altivec-6.C: Updated vec_splat() calls.
    * gcc.target/powerpc/fold-vec-splat-char.c: Remove invalid
    vec_splat calls from recently added tests. Update instruction counts.
    * gcc.target/powerpc/fold-vec-splat-floatdouble.c: Same.
    * gcc.target/powerpc/fold-vec-splat-int.c: Same.
    * gcc.target/powerpc/fold-vec-splat-longlong.c: Same.
    * gcc.target/powerpc/fold-vec-splat-pixel.c: Same.
    * gcc.target/powerpc/fold-vec-splat-short.c: Same.

From-SVN: r264582

gcc/testsuite/ChangeLog

+2018-09-25  Will Schmidt  <will_schmidt@vnet.ibm.com>
+
+	* g++.dg/ext/altivec-6.C: Updated vec_splat() calls.
+	* gcc.target/powerpc/fold-vec-splat-char.c: Remove invalid
+	vec_splat calls from recently added tests. Update instruction counts.
+	* gcc.target/powerpc/fold-vec-splat-floatdouble.c: Same.
+	* gcc.target/powerpc/fold-vec-splat-int.c: Same.
+	* gcc.target/powerpc/fold-vec-splat-longlong.c: Same.
+	* gcc.target/powerpc/fold-vec-splat-pixel.c: Same.
+	* gcc.target/powerpc/fold-vec-splat-short.c: Same.
+
 2018-09-25  Marek Polacek  <polacek@redhat.com>
 
 	PR c++/87425

gcc/testsuite/g++.dg/ext/altivec-6.C

@@ -22,7 +22,9 @@ void foo(void) {
 
   vp = vec_sld(vp, vp, 5);
   vbc = vec_splat(vbc, 7);
-  vbs = vec_splat(vbs, 12);
-  vp = vec_splat(vp, 17);
-  vbi = vec_splat(vbi, 31);  
+  /*  The second argument to vec_splat needs to be less than the number of
+   elements in the referenced vector.  */
+  vbs = vec_splat(vbs, 4);
+  vp = vec_splat(vp, 1);
+  vbi = vec_splat(vbi, 15);  
 }

gcc/testsuite/gcc.target/powerpc/fold-vec-splat-char.c

@@ -12,27 +12,18 @@ 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 tests 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'};
@@ -43,13 +34,7 @@ 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); }
 
-/* Similar tests as above, mask is greater than number of elements in the
- source vector.  */
-vector bool char test_obc (vector bool char x) { return vec_splat (by, 0b10010); }
-vector signed char test_osc (vector signed char x) { return vec_splat (sy, 0b10011); }
-vector unsigned char test_ouc (vector unsigned char x) { return vec_splat (uy, 0b10110); }
-
 // 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} 6 } } */
+/* { dg-final { scan-assembler-times "vspltb" 15 } } */
+// vec_splat() using a constant vector will generate a load or a splat immediate byte.
+/* { dg-final { scan-assembler-times {\mlvx\M|\mlxvw4x\M|\mxxspltib\M} 3 } } */

gcc/testsuite/gcc.target/powerpc/fold-vec-splat-floatdouble.c

@@ -7,40 +7,25 @@
 
 #include <altivec.h>
 
+/* Floats.  */
 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 float test_fc ()
+{ const vector float y = { 7.1, 8.2, 9.3, 10.4}; return vec_splat (y, 0b00010); }
 
+/* Doubles.  */
 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 () { const vector float y = { 7.1, 8.2, 9.3, 10.4}; return vec_splat (y, 0b00010); }
-vector double test_dc () { const vector double y = { 3.0, 5.0 }; return vec_splat (y, 0b00010); }
-
-/* Similar tests as above, mask is greater than number of elements in the
- source vector.  */
-vector float test_ofc () { const vector float y = { 7.1, 8.2, 9.3, 10.4}; return vec_splat (y, 0b10010); }
-vector double test_odc () { const vector double y = { 3.0, 5.0 }; return vec_splat (y, 0b10010); }
-
-/* lvx or lxvd2x for loading of the constants.  */
-/* vspltw or xxspltw for non-constants with the float type.  */
-/* xxpermdi for non-constants with the double type.  */
-
-/* { dg-final { scan-assembler-times {\mlvx\M|\mlxvd2x\M} 4 } } */
-/* { dg-final { scan-assembler-times "vspltw|xxspltw" 9 } } */
-/* { dg-final { scan-assembler-times "xxpermdi" 9 } } */
+vector double test_dc ()
+{ const vector double y = { 3.0, 5.0 }; return vec_splat (y, 0b00010); }
+
+/* If the source vector is a known constant, we will generate a load.  */
+/* { dg-final { scan-assembler-times {\mlvx\M|\mlxvd2x\M|\mlxv\M} 2 } } */
+
+/* For float types, we generate a splat.  */
+/* { dg-final { scan-assembler-times "vspltw|xxspltw" 3 } } */
+
+/* For double types, we will generate xxpermdi instructions.  */
+/* { dg-final { scan-assembler-times "xxpermdi" 3 } } */
 

gcc/testsuite/gcc.target/powerpc/fold-vec-splat-int.c

@@ -10,41 +10,20 @@
 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 bool int test_bic () { const vector bool int y = { 1,2,3,4}; return vec_splat (y, 0b00010); }
 vector signed int test_sic () { const vector signed int y = { 1,2,3,4}; return vec_splat (y, 0b00010); }
 vector unsigned int test_uic () { const vector unsigned int y = { 1,2,3,4}; return vec_splat (y, 0b00010); }
 
-/* Similar tests as above, mask is greater than number of elements in the
- source vector.  */
-vector bool int test_obic () { const vector bool int y = { 1,2,3,4}; return vec_splat (y, 0b10010); }
-vector signed int test_osic () { const vector signed int y = { 1,2,3,4}; return vec_splat (y, 0b10010); }
-vector unsigned int test_ouic () { const vector unsigned int y = { 1,2,3,4}; return vec_splat (y, 0b10010); }
-
-/* { dg-final { scan-assembler-times "vspltisw" 6 } } */
-/* { dg-final { scan-assembler-times "vspltw|xxspltw" 24 } } */
+/* { dg-final { scan-assembler-times "vspltisw" 3 } } */
+/* { dg-final { scan-assembler-times "vspltw|xxspltw" 9 } } */
 

gcc/testsuite/gcc.target/powerpc/fold-vec-splat-longlong.c

@@ -10,51 +10,26 @@
 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_bll () { const vector bool long long y = {12, 23}; return vec_splat (y, 0b00010); }
 vector signed long long test_sll () { const vector signed long long y = {34, 45}; return vec_splat (y, 0b00010); }
 vector unsigned long long test_ull () { const vector unsigned long long y = {56, 67}; return vec_splat (y, 0b00010); }
 
-/* Similar tests as above, mask is greater than number of elements in the
- source vector.  */
-vector bool long long test_obll () { const vector bool long long y = {12, 23}; return vec_splat (y, 0b10010); }
-vector signed long long test_osll () { const vector signed long long y = {34, 45}; return vec_splat (y, 0b10010); }
-vector unsigned long long test_oull () { const vector unsigned long long y = {56, 67}; return vec_splat (y, 0b10010); }
-
-/* lvx for the initialization with known constants. */
-/* { dg-final { scan-assembler-times {\mlvx\M|\mlxvd2x\M} 6 } } */
+/* Assorted load instructions for the initialization with known constants. */
+/* { dg-final { scan-assembler-times {\mlvx\M|\mlxvd2x\M|\mlxv\M} 3 } } */
 
 /* xxpermdi for vec_splat of long long vectors.
-   At the time of this writing, the number of xxpermdi instructions
-   generated could be 24 or 26 or 27, ultimately depending on the
-   platform and whether or not folding is enabled.
-   Roughly:
-	24 occurrences on older targets (power5) regardless of folding state.
-	26 occurrences with gimple folding enabled (through power9).
-	27 occurrences with gimple folding disabled (through power9).
-  So, ensure we have at least one hit.  */
+ At the time of this writing, the number of xxpermdi instructions
+ generated will vary depending on the target processor (p5/p6/p7/p8/...)
+ and whether or not folding is enabled.
+ So, ensure we have at least one hit.  */
 /* { dg-final { scan-assembler "xxpermdi" } } */

gcc/testsuite/gcc.target/powerpc/fold-vec-splat-pixel.c

@@ -11,17 +11,9 @@ 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 pixel test_p () { const vector pixel y = { 1,2,3,4}; return vec_splat (y, 0b00010); }
 
-/* Similar tests as above, mask is greater than number of elements in the
- source vector.  */
-vector pixel test_op () { const vector pixel y = { 1,2,3,4}; return vec_splat (y, 0b10010); }
-
-/* { dg-final { scan-assembler-times "vspltish" 2 } } */
-/* { dg-final { scan-assembler-times "vsplth" 8 } } */
+/* { dg-final { scan-assembler-times "vspltish" 1 } } */
+/* { dg-final { scan-assembler-times "vsplth" 4 } } */

gcc/testsuite/gcc.target/powerpc/fold-vec-splat-short.c

@@ -11,39 +11,21 @@ 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 () { const vector bool short y = {1, 2, 3, 4, 5, 6, 7, 8}; return vec_splat (y, 0b00010); }
 vector signed short test_ss () { const vector signed short y = {1, 2, 3, 4, 5, 6, 7, 8}; return vec_splat (y, 0b00010); }
 vector unsigned short test_us () { const vector unsigned short y = {1, 2, 3, 4, 5, 6, 7, 8}; return vec_splat (y, 0b00010); }
 
-/* Similar tests as above, mask is greater than number of elements in the
- source vector.  */
-vector bool short test_obs () { const vector bool short y = {1, 2, 3, 4, 5, 6, 7, 8}; return vec_splat (y, 0b10010); }
-vector signed short test_oss () { const vector signed short y = {1, 2, 3, 4, 5, 6, 7, 8}; return vec_splat (y, 0b10010); }
-vector unsigned short test_ous () { const vector unsigned short y = {1, 2, 3, 4, 5, 6, 7, 8}; return vec_splat (y, 0b10010); }
-
-/* { dg-final { scan-assembler-times "vspltish" 6 } } */
-/* { dg-final { scan-assembler-times "vsplth" 24 } } */
+/* { dg-final { scan-assembler-times "vspltish" 3 } } */
+/* { dg-final { scan-assembler-times "vsplth" 12 } } */