@@ -1,6 +1,6 @@
/* { dg-do compile } */
/* { dg-require-effective-target vect_int } */
-/* { dg-additional-options "--param vect-max-version-for-alias-checks=0" } */
+/* { dg-additional-options "--param vect-max-version-for-alias-checks=0 -fremarks" } */
#define N 16
@@ -14,22 +14,25 @@ union u { struct s2 f; struct s3 g; };
void
f1 (int a[][N], int b[][N])
{
- for (int i = 0; i < N; ++i)
+ for (int i = 0; i < N; ++i) /* { dg-remark "couldn't vectorize loop" } */
a[0][i] += b[0][i];
+ /* { dg-message "will not create alias checks, as --param vect-max-version-for-alias-checks == 0" "" { target *-*-* } .-2 } */
}
void
f2 (union u *a, union u *b)
{
- for (int i = 0; i < N; ++i)
+ for (int i = 0; i < N; ++i) /* { dg-remark "couldn't vectorize loop" } */
a->f.b.a[i] += b->g.e.a[i];
+ /* { dg-message "will not create alias checks, as --param vect-max-version-for-alias-checks == 0" "" { target *-*-* } .-2 } */
}
void
f3 (struct s1 *a, struct s1 *b)
{
- for (int i = 0; i < N - 1; ++i)
+ for (int i = 0; i < N - 1; ++i) /* { dg-remark "couldn't vectorize loop" } */
a->a[i + 1] += b->a[i];
+ /* { dg-message "possible dependence between data-refs" "" { target *-*-* } .-2 } */
}
/* { dg-final { scan-tree-dump-not "LOOP VECTORIZED" "vect" } } */
new file mode 100644
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-fremarks -O3" } */
+
+extern void accumulate (int x, int *a);
+
+int test_1 (int arr[], int n)
+{
+ int sum = 0;
+ for (int i = 0; i < n; ++i) /* { dg-remark "couldn't vectorize loop" } */
+ accumulate (arr[i], &sum); /* { dg-message "statement clobbers memory: 'accumulate .*'" } */
+ return sum;
+}
+
+void test_2 (int *dst, int *src_a, int *src_b, int n)
+{
+ for (int i = 0; i < n; i++) /* { dg-remark "loop vectorized" } */
+ dst[i] = src_a[i] + src_b[i];
+}