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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/vmx/newton-1.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/vmx/newton-1.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/vmx/newton-1.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/vmx/newton-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/vmx/newton-1.c
new file mode 100644
index 000000000..c5963c034
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/vmx/newton-1.c
@@ -0,0 +1,67 @@
+/* { dg-do compile } */
+#include <altivec.h>
+
+#define SPLAT76 ((vector unsigned char)\
+ {0,1,2,3,0,1,2,3,0,1,2,3,0,1,2,3})
+#define SPLAT54 ((vector unsigned char)\
+ {4,5,6,7,4,5,6,7,4,5,6,7,4,5,6,7})
+#define SPLAT32 ((vector unsigned char)\
+ {8,9,10,11,8,9,10,11,8,9,10,11,8,9,10,11})
+#define SPLAT10 ((vector unsigned char)\
+ {12,13,14,15,12,13,14,15,12,13,14,15,12,13,14,15})
+#define INTERLEAVE ((vector unsigned char)\
+ {0,1,16,17,4,5,20,21,8,9,24,25,12,13,28,29})
+
+long real_32_manytaps (long ntaps, vector signed short *c, long ndat,
+ vector signed short *x, vector signed short *y)
+{
+ long i, j, op, ndatavec, ncoefvec;
+ vector signed short x0, x1;
+ vector signed short coef;
+ vector signed short cr10, cr32, cr54, cr76;
+ vector signed int y_even, y_odd;
+ vector signed short *x1p;
+
+ op = 0;
+ ndatavec = ndat >> 3;
+ ncoefvec = ntaps >> 3;
+
+ for (i = 0; i < ndatavec; i += 1) {
+ x0 = x[i];
+
+ y_even = ((vector signed int){0x8000,0x8000,0x8000,0x8000});
+ y_odd = ((vector signed int){0x8000,0x8000,0x8000,0x8000});
+
+ j = 0;
+ x1p = x + 1 + i;
+
+ do {
+
+ coef = c[j];
+ x1 = x1p[j];
+
+ cr10 = vec_perm(coef, coef, SPLAT10);
+ y_odd = vec_msums(cr10, x1, y_odd);
+ y_even = vec_msums(cr10, vec_sld(x0, x1, 14), y_even);
+
+ cr32 = vec_perm(coef, coef, SPLAT32);
+ y_odd = vec_msums(cr32, vec_sld(x0, x1, 12), y_odd);
+ y_even = vec_msums(cr32, vec_sld(x0, x1, 10), y_even);
+
+ cr54 = vec_perm(coef, coef, SPLAT54);
+ y_odd = vec_msums(cr54, vec_sld(x0, x1, 8), y_odd);
+ y_even = vec_msums(cr54, vec_sld(x0, x1, 6), y_even);
+
+ cr76 = vec_perm(coef, coef, SPLAT76);
+ y_odd = vec_msums(cr76, vec_sld(x0, x1, 4), y_odd);
+ y_even = vec_msums(cr76, vec_sld(x0, x1, 2), y_even);
+
+ x0 = x1;
+
+ } while (++j < ncoefvec);
+ y[op++] = (vector signed short) vec_perm(y_even, y_odd, INTERLEAVE);
+
+ }
+
+ return op*8;
+}