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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/vect/pr60841.c183
1 files changed, 183 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/vect/pr60841.c b/gcc-4.9/gcc/testsuite/gcc.dg/vect/pr60841.c
new file mode 100644
index 000000000..44b5d0191
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/vect/pr60841.c
@@ -0,0 +1,183 @@
+/* { dg-do compile } */
+/* { dg-additional-options "-ffast-math" } */
+
+/* This testcase shouldn't consume much memory or produce a 1GB vectorizer
+ dump file due to SLP tree explosion. */
+
+struct S { int f1, f2, f3, f4; } a;
+struct T { short f3, f2, f1, f4; };
+int b, c, d, e, f, g;
+unsigned long z;
+
+void
+foo (struct T *p, struct T *q, int x, int w)
+{
+ for (; x; x++)
+ {
+ struct S h;
+ int i;
+ struct T j;
+ struct T *r;
+ h = a;
+ g = 0;
+ r = p + 2 * (c + 4) + 1;
+ j = *r;
+ r = p;
+ f = r->f1 - 1;
+ b = +1.0 + f * f;
+ i = (r->f2 + j.f2) / 2;
+ f = r->f3 - 1;
+ b += 1.0 - i * f * f;
+ f = r->f4 - 1;
+ if (b)
+ b += -1.0 - i * f;
+ if (b / w)
+ {
+ h.f1 += 8.0 * r->f1;
+ h.f2 += 8.0 * r->f2;
+ h.f3 += 8.0 * r->f3;
+ h.f4 += 8.0 * r->f4;
+ g = 1;
+ }
+ r++;
+ f = r->f1;
+ i = (r->f2 + j.f2) / 2;
+ f = r->f3 - 1;
+ b += 1.0 - i * f * f;
+ i = (r->f4);
+ if (b * 65535UL / w)
+ {
+ h.f1 += 10.0 * r->f1;
+ h.f2 += 10.0 * r->f2;
+ h.f3 += 10.0 * r->f3;
+ h.f4 += 10.0 * r->f4;
+ g += 10.0;
+ }
+ r++;
+ f = r->f1;
+ z = 5UL * i;
+ f = r->f2;
+ i = (r->f3 + j.f3) / 2;
+ b = -i * f * f;
+ i = (r->f4 + j.f4) / 2;
+ if (b * 65535UL / 25.0f)
+ {
+ h.f1 += 8.0 * r->f1;
+ h.f2 += 8.0 * r->f2;
+ h.f3 += 8.0 * r->f3;
+ h.f4 += 8.0 * r->f4;
+ g += 8.0;
+ }
+ r++;
+ f = r->f1 - j.f1;
+ b = 1 * 2.0 * i * f * f;
+ f = r->f2;
+ b += 4.0 * f;
+ i = r->f3 / 2;
+ f = r->f4 - 1;
+ if (b * 1)
+ {
+ h.f1 += 8.0 * r->f1;
+ h.f2 += 8.0 * r->f2;
+ h.f3 += 8.0 * r->f3;
+ h.f4 += 8.0 * r->f4;
+ g += 8.0;
+ }
+ b = 4.0 * 1 * f;
+ if (b * 65535UL / 25.0f)
+ {
+ h.f1 += 20.0 * r->f1;
+ h.f2 += 20.0 * r->f2;
+ h.f3 += 20.0 * r->f3;
+ h.f4 += 20.0 * r->f4;
+ g += 20.0;
+ }
+ b = 5 * (0.0 - i);
+ if (b < 0)
+ {
+ h.f1 += 8.0 * r->f1;
+ h.f2 += 8.0 * r->f2;
+ h.f3 += 8.0 * r->f3;
+ h.f4 += 8.0 * r->f4;
+ g += 8.0;
+ }
+ r = p + 2 * (c + 4);
+ i = (r->f1 + j.f1);
+ b = 1 * 2.0 * i * 1;
+ f = r->f2 - 1;
+ i = (r->f3 + j.f3) / 2;
+ b = 5 * (0.0 - i) * f * f;
+ i = (r->f4 + j.f4) / 2;
+ if (b * 65535UL / 25.0f)
+ {
+ h.f1 += 10.0 * r->f1;
+ h.f2 += 10.0 * r->f2;
+ h.f3 += 10.0 * r->f3;
+ h.f4 += 10.0 * r->f4;
+ g += 10.0;
+ }
+ r++;
+ f = r->f1;
+ b = 5UL * i * f;
+ i = (r->f2 + j.f2) / 2;
+ f = r->f3 - 1;
+ b = 5 * (0.0 - i) * f * f;
+ f = r->f4 - 1;
+ if (b * 65535UL / 25.0f)
+ {
+ h.f1 += 40.0 * r->f1;
+ h.f2 += 40.0 * r->f2;
+ h.f3 += 40.0 * r->f3;
+ h.f4 += 40.0 * r->f4;
+ g += 40.0;
+ }
+ r++;
+ i = (r->f1 + j.f1);
+ b = 5 * i * f;
+ f = r->f2;
+ b = 4.0 * f * f;
+ f = r->f3;
+ i = (r->f4 + j.f4) / 2;
+ b = 5 * (0.0 - i) * f * f;
+ if (b * 25.0f)
+ {
+ h.f1 += 8.0 * r->f1;
+ h.f2 += 8.0 * r->f2;
+ h.f3 += 8.0 * r->f3;
+ h.f4 += 8.0 * r->f4;
+ g += 8.0;
+ }
+ r = p + 4 * (c + 4);
+ i = r->f1 / 2;
+ b = 5 * (1.0 + i);
+ i = r->f2 + j.f2;
+ f = r->f3 - 1;
+ b = 5 * (0.0 - i) * f * f;
+ i = (r->f4 + j.f4) / 2;
+ if (b * 65535UL / 25.0f)
+ {
+ h.f1 += 5.0 * r->f1;
+ h.f2 += 5.0 * r->f2;
+ h.f3 += 5.0 * r->f3;
+ h.f4 += 5.0 * r->f4;
+ g += 5.0;
+ }
+ b = 5 * (1.0 + i);
+ if (b < 0)
+ {
+ h.f1 += 5.0 * r->f1;
+ h.f2 += 5.0 * r->f2;
+ h.f3 += 5.0 * r->f3;
+ h.f4 += 5.0 * r->f4;
+ g += 5.0;
+ }
+ q->f1 = (h.f1 + g / 2 - 1) / g;
+ q->f2 = (h.f2 + g / 2 - 1) / g;
+ q->f3 = (h.f3 + g / 2 - 1) / g;
+ q->f4 = (h.f4 + g / 2 - 1) / g;
+ p++;
+ q++;
+ }
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */