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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/graphite/run-id-5.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/graphite/run-id-5.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/graphite/run-id-5.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/graphite/run-id-5.c b/gcc-4.9/gcc/testsuite/gcc.dg/graphite/run-id-5.c
new file mode 100644
index 000000000..9005c43fd
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/graphite/run-id-5.c
@@ -0,0 +1,54 @@
+/* { dg-options "-O2 -ftree-vectorize -fno-vect-cost-model -fno-tree-scev-cprop -fgraphite-identity" } */
+/* { dg-require-effective-target vect_int } */
+
+/* gcc.dg/vect/no-scevccp-outer-22.c was miscompiled by Graphite.
+ Adding it here to always test it with Graphite. */
+
+#include <stdarg.h>
+
+extern void abort ();
+#define N 40
+
+int a[N];
+
+__attribute__ ((noinline)) int
+foo (int n){
+ int i,j;
+ int sum;
+
+ if (n<=0)
+ return 0;
+
+ /* inner-loop index j used after the inner-loop */
+ for (i = 0; i < N; i++) {
+ sum = 0;
+ for (j = 0; j < n; j+=2) {
+ sum += j;
+ }
+ a[i] = sum + j;
+ }
+}
+
+int main (void)
+{
+ int i,j;
+ int sum;
+
+ for (i=0; i<N; i++)
+ a[i] = i;
+
+ foo (N);
+
+ /* check results: */
+ for (i=0; i<N; i++)
+ {
+ sum = 0;
+ for (j = 0; j < N; j+=2)
+ sum += j;
+ if (a[i] != sum + j)
+ abort();
+ }
+
+ return 0;
+}
+