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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/vect/vect-outer-fir-lb-big-array.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/vect/vect-outer-fir-lb-big-array.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-outer-fir-lb-big-array.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-outer-fir-lb-big-array.c b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-outer-fir-lb-big-array.c
new file mode 100644
index 000000000..5ac62ac3a
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-outer-fir-lb-big-array.c
@@ -0,0 +1,78 @@
+/* { dg-require-effective-target vect_float } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 80
+#define M 128
+float in[N+M];
+float coeff[M];
+float out[N];
+float fir_out[N];
+
+/* Vectorized. Fixed misaligment in the inner-loop. */
+__attribute__ ((noinline))
+void foo (){
+ int i,j,k;
+ float diff;
+
+ for (i = 0; i < N; i++) {
+ out[i] = 0;
+ }
+
+ for (k = 0; k < 4; k++) {
+ for (i = 0; i < N; i++) {
+ diff = 0;
+ j = k;
+
+ do {
+ diff += in[j+i]*coeff[j];
+ j+=4;
+ } while (j < M);
+
+ out[i] += diff;
+ }
+ }
+
+}
+
+/* Vectorized. Changing misalignment in the inner-loop. */
+__attribute__ ((noinline))
+void fir (){
+ int i,j,k;
+ float diff;
+
+ for (i = 0; i < N; i++) {
+ diff = 0;
+ for (j = 0; j < M; j++) {
+ diff += in[j+i]*coeff[j];
+ }
+ fir_out[i] = diff;
+ }
+}
+
+
+int main (void)
+{
+ check_vect ();
+ int i, j;
+ float diff;
+
+ for (i = 0; i < M; i++)
+ coeff[i] = i;
+ for (i = 0; i < N+M; i++)
+ in[i] = i;
+
+ foo ();
+ fir ();
+
+ for (i = 0; i < N; i++) {
+ if (out[i] != fir_out[i])
+ abort ();
+ }
+
+ return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 2 "vect" { xfail vect_no_align } } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */