vsx.md (vextract_fp_from_shorth, [...]): Add BE support.

gcc/ChangeLog:

2018-06-07  Carl Love  <cel@us.ibm.com>

	* gcc/config/rs6000/vsx.md (vextract_fp_from_shorth,
	vextract_fp_from_shortl): Add BE support.

gcc/testsuite/ChangeLog:

2018-06-07  Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/builtins-3-p9-runnable.c: Add debug print
	statements.

From-SVN: r261299

gcc/ChangeLog

+2018-06-07  Carl Love  <cel@us.ibm.com>
+
+	* gcc/config/rs6000/vsx.md (vextract_fp_from_shorth,
+	vextract_fp_from_shortl): Add BE support.
+
 2018-06-07  Paul Koning  <ni1d@arrl.net>
 
 	* compare-elim.c (try_merge_compare): Don't merge compare if

gcc/config/rs6000/vsx.md

@@ -5214,8 +5214,9 @@
    UNSPEC_VSX_VEXTRACT_FP_FROM_SHORTH))]
   "TARGET_P9_VECTOR"
 {
-  int vals[16] = {15, 14, 0, 0, 13, 12, 0, 0, 11, 10, 0, 0, 9, 8, 0, 0};
   int i;
+  int vals_le[16] = {15, 14, 0, 0, 13, 12, 0, 0, 11, 10, 0, 0, 9, 8, 0, 0};
+  int vals_be[16] = {7, 6, 0, 0, 5, 4, 0, 0, 3, 2, 0, 0, 1, 0, 0, 0};
 
   rtx rvals[16];
   rtx mask = gen_reg_rtx (V16QImode);
@@ -5223,11 +5224,15 @@
   rtvec v;
 
   for (i = 0; i < 16; i++)
-    rvals[i] = GEN_INT (vals[i]);
+    if (!BYTES_BIG_ENDIAN)
+      rvals[i] = GEN_INT (vals_le[i]);
+    else
+      rvals[i] = GEN_INT (vals_be[i]);
 
   /* xvcvhpsp - vector convert F16 to vector F32 requires the four F16
      inputs in half words 1,3,5,7 (IBM numbering).  Use xxperm to move
-     src half words 0,1,2,3 for the conversion instruction.  */
+     src half words 0,1,2,3 (LE), src half words 4,5,6,7 (BE) for the
+     conversion instruction.  */
   v = gen_rtvec_v (16, rvals);
   emit_insn (gen_vec_initv16qiqi (mask, gen_rtx_PARALLEL (V16QImode, v)));
   emit_insn (gen_altivec_vperm_v8hiv16qi (tmp, operands[1],
@@ -5244,7 +5249,9 @@
 	UNSPEC_VSX_VEXTRACT_FP_FROM_SHORTL))]
   "TARGET_P9_VECTOR"
 {
-  int vals[16] = {7, 6, 0, 0, 5, 4, 0, 0, 3, 2, 0, 0, 1, 0, 0, 0};
+  int vals_le[16] = {7, 6, 0, 0, 5, 4, 0, 0, 3, 2, 0, 0, 1, 0, 0, 0};
+  int vals_be[16] = {15, 14, 0, 0, 13, 12, 0, 0, 11, 10, 0, 0, 9, 8, 0, 0};
+
   int i;
   rtx rvals[16];
   rtx mask = gen_reg_rtx (V16QImode);
@@ -5252,11 +5259,15 @@
   rtvec v;
 
   for (i = 0; i < 16; i++)
-    rvals[i] = GEN_INT (vals[i]);
+    if (!BYTES_BIG_ENDIAN)
+      rvals[i] = GEN_INT (vals_le[i]);
+    else
+      rvals[i] = GEN_INT (vals_be[i]);
 
   /* xvcvhpsp - vector convert F16 to vector F32 requires the four F16
      inputs in half words 1,3,5,7 (IBM numbering).  Use xxperm to move
-     src half words 4,5,6,7 for the conversion instruction.  */
+     src half words 4,5,6,7 (LE), src half words 0,1,2,3 (BE) for the
+     conversion instruction.  */
   v = gen_rtvec_v (16, rvals);
   emit_insn (gen_vec_initv16qiqi (mask, gen_rtx_PARALLEL (V16QImode, v)));
   emit_insn (gen_altivec_vperm_v8hiv16qi (tmp, operands[1],

gcc/testsuite/ChangeLog

 2018-06-07  Carl Love  <cel@us.ibm.com>
 
+	* gcc.target/powerpc/builtins-3-p9-runnable.c: Add debug print
+	statements.
+
+2018-06-07  Carl Love  <cel@us.ibm.com>
+
         * gcc.target/powerpc/vsu/vec-cntlz-lsbb-2.c (dg-error): Update expected
         error message.
 

gcc/testsuite/gcc.target/powerpc/builtins-3-p9-runnable.c

@@ -2,6 +2,10 @@
 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
 /* { dg-options "-mcpu=power9 -O2" } */
 
+#ifdef DEBUG
+#include <stdio.h>
+#endif
+
 #include <altivec.h> // vector
 
 void abort (void);
@@ -17,9 +21,25 @@ int main() {
                                    0B011111000000000, 0B0011100000000000,
                                    0B011110100000000, 0B1011010000000000};
 
+#ifdef DEBUG
+   printf ("Claim, source data is 8 16-bit floats:\n");
+   printf ("   {1.0, -2.0, 0.0, 8.5, 1.5, 0.5, 1.25, -0.25}\n");
+   printf ("vusha = (vector unsigned short){0B011110000000000, 0B1100000000000000,\n");
+   printf ("                                0B000000000000000, 0B0100100001000000,\n");
+   printf ("                                0B011111000000000, 0B0011100000000000,\n");
+   printf ("                                0B011110100000000, 0B1011010000000000};\n\n");
+#endif
+
    vfexpt = (vector float){1.0, -2.0, 0.0, 8.5};
    vfr = vec_extract_fp_from_shorth(vusha);
 
+#ifdef DEBUG
+   printf ("vec_extract_fp_from_shorth\n");
+   for (i=0; i<4; i++)
+     printf("result[%d] = %f; expected[%d] = %f\n",
+	    i, vfr[i], i, vfexpt[i]);
+#endif
+
    for (i=0; i<4; i++) {
       if (vfr[i] != vfexpt[i])
          abort();
@@ -28,6 +48,13 @@ int main() {
    vfexpt = (vector float){1.5, 0.5, 1.25, -0.25};
    vfr = vec_extract_fp_from_shortl(vusha);
 
+#ifdef DEBUG
+   printf ("\nvec_extract_fp_from_shortl\n");
+   for (i=0; i<4; i++)
+     printf("result[%d] = %f; expected[%d] = %f\n",
+	    i, vfr[i], i, vfexpt[i]);
+#endif
+
     for (i=0; i<4; i++) {
       if (vfr[i] != vfexpt[i])
          abort();