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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-80.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-80.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-80.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-80.c b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-80.c
new file mode 100644
index 000000000..fc0ed1b39
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-80.c
@@ -0,0 +1,56 @@
+/* { dg-require-effective-target vect_float } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 16
+
+float fa[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
+float fb[N+4] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 7.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0};
+float fc[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 7.5, 9.5, 10.5, 11.5, 12.5, 13.5, 14.5, 15.5};
+
+/* Check handling of accesses for which the "initial condition" -
+ the expression that represents the first location accessed - is
+ more involved than just an ssa_name. */
+
+__attribute__ ((noinline)) int
+main1 (float * __restrict__ pa, float * __restrict__ pb, float *__restrict__ pc)
+{
+ int i;
+ float *q = pb + 4;
+
+ for (i = 0; i < N; i++)
+ {
+ pa[i] = q[i] * pc[i];
+ }
+
+ for (i = 0; i < N; i++)
+ {
+ if (pa[i] != q[i] * pc[i])
+ abort();
+ }
+
+ return 0;
+}
+
+
+int main (void)
+{
+ check_vect ();
+
+ main1 (fa, fb, fc);
+
+ return 0;
+}
+
+/* For targets that don't support misaligned loads we version for the
+ all three accesses (peeling to align the store will not force the
+ two loads to be aligned). */
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
+/* Uncomment when this testcase gets vectorized again:
+ dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { xfail vect_no_align } }
+ dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { xfail vect_no_align } }
+ dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 3 "vect" { target vect_no_align } }
+*/
+/* { dg-final { cleanup-tree-dump "vect" } } */