1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/wmul-1.c b/gcc/testsuite/gcc.target/i386/wmul-1.c
new file mode 100644
index 000000000..3497f71ce
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/wmul-1.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-require-effective-target ilp32 } */
+
+long long mac(const int *a, const int *b, long long sqr, long long *sum)
+{
+  int i;
+  long long dotp = *sum;
+
+  for (i = 0; i < 150; i++) {
+    dotp += (long long)b[i] * a[i];
+    sqr += (long long)b[i] * b[i];
+  }
+
+  *sum = dotp;
+  return sqr;
+}
+
+/* { dg-final { scan-assembler-times "imull" 2 } } */